Operation: Hartge Jr. (Dirty Priest)

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Chimi-Changa
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Joined: Nov 08, 2011
Location: Westborough, MA

Re: Operation Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

e28Sean wrote: Dec 28, 2024 4:26 PM She's lookin' miiiighty sexy! Nice work on giving this car a new lease on life.

Couple of questions, just to tickle my curiosity.
> Are you running power windows in the rear, and Manuel windows up front?
> How's the coverage from the mono-wiper. You mentioned trying to get as much coverage as possible without going off the top. How'd it go?

Hey Sean,

Thank you! It's been quite the journey with this one. Always something to do but the DP is getting there from the original idea.

Windows-Yes, manny crankers in the front and power in the rear. I have the manual set for the rear but like the power to be able to regulate windows in the back for the dog.

The mono wiper- I tried a couple combinations of arm length and wiper size to get the right setup. Now it seems to clear about the best as possible with the mono-with good clearing visibility if caught in the rain. Iirc it's an e21 arm I ended up running.

Happy new year all :cool:
AlpinaPat
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Location: Canada

Re: Operation Hartge Jr. (Dirty Priest)

Post by AlpinaPat »

Beautiful E28 and love the Hartge parts! I have a Hartge tribute JDM E30.
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Also my (also JDM) E28 has the same 0211 cloth interior 😉Image
 
Shawn D.
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Re: Operation Hartge Jr. (Dirty Priest)

Post by Shawn D. »

AlpinaPat wrote: Jan 14, 2025 3:37 PM Beautiful E28 and love the Hartge parts! I have a Hartge tribute JDM E30.


Also my (also JDM) E28 has the same 0211 cloth interior 😉

 
Beautiful!

No such thing as a "JDM" German car, though. 😉  (no matter how many times people use "domestic market" improperly)
Chimi-Changa
Posts: 1777
Joined: Nov 08, 2011
Location: Westborough, MA

Re: Operation Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

Back in the LAB...Who knew a Black and Decker work mate was good for opening up a transmission!  I added a strap around it to keep it in place and used the RustBucket 265 opener on it. Heating the case up to 120 degrees with a heat gun it came right off by hand using a 3 jaw puller with it. Planning on replacing input shaft bearing, layshaft bearing (cooked) and another shifter shaft seal.

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Chimi-Changa
Posts: 1777
Joined: Nov 08, 2011
Location: Westborough, MA

Re: Operation Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

Wow it's summer already and I've been lagging on driving season prep. Vintage was not a reality this year unfortunately. Besides pulling the transmission to replace bearings and shifter seal, Ive been working on the rest of the body kit (rear valance and wing), pulled the rear main seal as I see oil in the bell housing and underneath, and still plan on pulling the oil cooler off and going with the standard filter housing. Also plan on a new oil temp and pressure sensor location. I was running them off the back of the head but cant seem to keep that sensor block I have from dripping. Still need to figure out the best way to install the Hartge exhaust tip, looks like will need to get creative with the curved pipes from the muffler to the tips on the SS Euro muffler. Might need to cut the curved pipes off and weld on straight pipes to attach the Hartge "vacuum cleaner" tip. From the pictures I've seen the tip sticks out a little further than I am used to so will have to have the valance on first, and see how the fitment looks and what needs to be done. 

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The rear main seal is recessed in the carrier so it has been replaced at one point. I may consider setting it flush with the carrier install so it is not in the pre existing spot on the crank. It also looks like I used a little too much sealant on the rebuild so will be careful not to have too much buildup. 

It's bearing removal time. The 265/5 has a smaller diameter input shaft bearing so the puller that comes with the case splitting kit could not be used. After talking to Sam L about them he suggested cutting them off to not put any extra lateral pressure on the shafts. So with the dremel tool started working on the input shaft one and the lay-shaft bearing. 

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Inner race needed to be a little more careful. Cutting at an angle really helped. 

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Top one off, working on the lay shaft one. This bearing is in bad shape, not as much room on that one so taking a little more time. 

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Looks like more oil is dripping from the upper timing cover where the bolts for the tensioner are. So plan on pulling that off too and re sealing. I will also re torque the head. I dont think the head gasket is leaking but not exactly sure. I used the "thicker" OEM BMW gasket with the ARP studs so will give a re-torque sequence a try while Im futzing with things. 

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Since Ive pulled the long tube headers off, I was considering installing the Hartge Short tubes. After looking at the current configuration with the mid pipes that came with them I think I will have to have some custom mid pipes made up which will be a challenge at this point I will hold off on. I decided to send the long tubes and mid pipes I have out to be heat coated. 

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Planning on a new clutch while I am at this point. The release feel on the old one was a little strange, like it was slipping a little bit. If I went to "dump" the clutch, it was still a smooth release which I know is not right. So a new clutch and release bearing going in when I put it together. Going with the M5 clutch this time around. 

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Last but not least, Auto Solutions shifter is on order for the g265!  I was not too excited about the aluminum console loose shifter feel even with new bushings. 

 
Nebraska_e28
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Re: Operation Hartge Jr. (Dirty Priest)

Post by Nebraska_e28 »

Depending on what clutch you were running (among other variables), you may consider measuring crankshaft play to determine thrust bearing condition.  Just cheap ez insurance while your in there.  😉
Chimi-Changa
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Location: Westborough, MA

Re: Operation Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

Nebraska_e28 wrote: Jun 07, 2025 12:23 AM Depending on what clutch you were running (among other variables), you may consider measuring crankshaft play to determine thrust bearing condition.  Just cheap ez insurance while your in there.  😉
Thanks LJ, I installed new bearings when I recently rebuilt it- so hoping those are in fine order. With the new (M5) clutch and pressure plate going in, I'm hoping that will improve things. 

Molasses progress report: 

Headers and mid pipes back from coating, and was able to get the input and lay-shaft bearings sorted. Thanks Ben for the help and group buy on the auto solutions 265 shifter. (2 of us lol) I could look at that all day, cant wait to row the gears with it. 

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Interesting that the bearings are installed with the front cover in place on the 265/5. 

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Chimi-Changa
Posts: 1777
Joined: Nov 08, 2011
Location: Westborough, MA

Re: Operation Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

Hallo. Finally some progress. With the motivation of BMW day this month locally, and Ben getting his car together the push was on. Thanks to Sammy for his 265 knowledge we have the transmission is back together. A new rear main seal was installed flush with the housing after some research. New M5 clutch also installed, and one of the lower header M5 heat shields on the engine mount I finally got chance to install. I'm still futzing with the exhaust brackets getting the right seal and not having one resonating on the cross member (its close)at idle. Valance and wing on- the DP/Special Priest mode has hit the streets after 9 months off. Feels great to have it back on the road and phase 2 of the original plan going on. 

So far so go with most- do need to get another reverse switch on there and work on fuel delivery. It's still cutting out on hard accel on anything but a full tank. Pumps are making noise. (main pump is from 2021) Rear deck needs aligning still but wing seems on there pretty well. Have the nutserts in it with 4 bolts, and some 3M spoiler tape. 

Ben and I did the Input and lay shaft bearings, and double shift seal. It took a little bit to get it all sorted but Sam helped remotely and set now. Filled up with MT90 and GTG. Thanks Friends 🍻

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Heat shield number 2, my engine mount is going to thank me. 

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This HF trolley list thing sure made it easier popping this thing on. With the headers not attached yet I was able to put the bell housing on right before attaching. 

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First time in sunlight in a while

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Ended up finishing it up Sat night about 7pm at Bens

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jdb
Posts: 181
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Location: Humboldt County, Ca.

Re: Operation Hartge Jr. (Dirty Priest)

Post by jdb »

Love the shift assembly, I NEED one!!
Nice progress!

Jeff
AlpinaPat
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Re: Operation Hartge Jr. (Dirty Priest)

Post by AlpinaPat »

Chimi-Changa wrote: Jun 06, 2025 10:40 AM Last but not least, Auto Solutions shifter is on order for the g265! I was not too excited about the aluminum console loose shifter feel even with new bushings.
Chimi-Changa wrote: Aug 23, 2025 9:10 PM Image
Nice work!

That shifter looks brilliant! :shock: I checked out the Auto Solutions website, it seems outdated, many pictures are missing etc. are their shifters still available? How recently did you acquire yours? Does it feel as good as it looks lol
Chimi-Changa
Posts: 1777
Joined: Nov 08, 2011
Location: Westborough, MA

Re: Operation Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

AlpinaPat wrote: Aug 25, 2025 4:02 PM That shifter looks brilliant! :shock: I checked out the Auto Solutions website, it seems outdated, many pictures are missing etc. are their shifters still available? How recently did you acquire yours? Does it feel as good as it looks lol
 
He built two for us recently. (BenGerman bought the other) It's amazing feeling, very precise and solid. The 265 ones are custom built, and hear he is retired so it took a few months to be built. I would reach out to him directly and see what he can do for you if interested. 
Chimi-Changa
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Joined: Nov 08, 2011
Location: Westborough, MA

Re: Operation Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

Had a short but fun driving season this year, next year Vintage is early- so will try to keep the off season work manageable (I say that every year) It seems like the trunk wing is a hit, even my wife thought it looks better with it. 

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The oil cooler had not been working, the hoses were not even that warm even with the motor all hot. And since they lower oil pressure- it had to come off. Doesn't seem like I need it anyway, I only put it on because Hartge did- but it's a street car, not a track rat. The spoiler, and valance had to come off to do so. The valance had been on for close to 10 years, and ended up refinishing it just to keep things nice. (even though no one can really see it) 

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Thanks Motronic for the French Fogs- protected with film on the lens. 

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Had to do a little trim on the gearbox support to keep the exhaust from hitting it. 

Tried this sensor spacer, but cant keep it from leaking, even though the seller claims there have not been any issues, not happy with it. So back to the drawing board to try to have oil pressure and oil temp sensors somewhere. 

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Shawn D.
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Re: Operation Hartge Jr. (Dirty Priest)

Post by Shawn D. »

Chimi-Changa wrote: Nov 11, 2025 10:22 AM
Tried this sensor spacer, but cant keep it from leaking, even though the seller claims there have not been any issues, not happy with it. So back to the drawing board to try to have oil pressure and oil temp sensors somewhere. 

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When I was making my E28 gauge panels, my suggestions (and what most people did) was to use a tee at the existing pressure port at the back of the head, and tap the housing for a 1/8" NPT temperature sender.  Alternately, an adapter could be inserted between the engine block and the oil filter housing.
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Chimi-Changa
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Re: Operation Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

Shawn D." wrote: Nov 11, 2025 3:37 PM
 
 
Thanks Shawn! Love this idea, and may try this for the temp sensor, or source a combo temp/pressure sender Christian told me about for this area.  I've have different junction blocks to use at the back of the head. They either leaked, or the sender mount holes did not line up when screwed in place at the back of the head (IE). I even had a custom one made up at a masheen shop- but trying it with a new pressure sender did not seem to work at all. 

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So, went back to the first one on the left. I used a new washer on it, and was able to mount the older 5 bar pressure sensor and the factory dash light sensor to it...and so far so good. 

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We have pressure- cold start:

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This new shifter is shorter than the factory rod, so had to pull out all the knobs, to figure out the best fit and feel. Ended up going with the Black shorter one. A kind person in Jackson Hole sent me a leather shift boot so I gave up the 80's Van Halen look. 

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One last trip to the packy before it goes away for winter hibernation, cheers. 

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Chimi-Changa
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Location: Westborough, MA

Re: Operation: Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

Well, I was not as ambitious as I hoped this off season (no oil pan drop) but with warmer temps and the itch to drive the DP is out of hibernation. 
Noticed a little oil weeping from the bolt right below the timing chain tensioner, so will try to goop that bolt with a little Yamalube. That's a tough spot with oil cavitating there in a pocket. Ended up relocating the senders for the oil pressure and temp at the back of the head, again. Still need to figure out the temp but pressure is working. I will either drill and tap the junction block to 14mm, or try to find a combo temp/pressure one. I still may drill the oil filter housing, but not in a rush to do that if I can figure it out with a junction block. 

Really enjoying driving the car with the power, dogleg/ shifter and the S2.93 out back- it gains speed rather quickly!  Besides future goals of an AC solutions setup, and a bitchin' stereo system...MOAR brakes are needed. 

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Spoiler going back on after oil cooler removal, and repainting

valance. Image

Happy Spring! 10 Years building so far...

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Last edited by Chimi-Changa on Apr 29, 2026 2:25 PM, edited 2 times in total.
CanadianMiniFan
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by CanadianMiniFan »

Hey Chimi, I’m working on some details for my own project, and currently looking at gearknob options. I noticed in your photo a couple knobs that I believe are what I’m looking for. I’ve seen them referred to as “mushroom” knobs, but most I look for come up as a rubbery material, not leather covered. My question to you would be, are you interested in parting with either of the circled knobs, if so is the leather in good condition, and if not, any idea what model they are from to help narrow my search?

https://flic.kr/p/2sa9Rfw

Thanks 

Warren 
Chimi-Changa
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

CanadianMiniFan wrote: Apr 28, 2026 6:39 PM Hey Chimi, I’m working on some details for my own project, and currently looking at gearknob options. I noticed in your photo a couple knobs that I believe are what I’m looking for. I’ve seen them referred to as “mushroom” knobs, but most I look for come up as a rubbery material, not leather covered. My question to you would be, are you interested in parting with either of the circled knobs, if so is the leather in good condition, and if not, any idea what model they are from to help narrow my search?

https://flic.kr/p/2sa9Rfw

Thanks 

Warren 
Hi Warren, The taller one is original one from my old 87 535is. The smaller ones I am not sure, I just have been looking for them for a while and buy them off of ebay or where-ever but original leathered ones are getting harder to find. The other one you circled I already hooked another local buddy up, and will hold on to the other ones. Good luck searching them out, I have also heard them called mushroom style. 

Jamie 

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CanadianMiniFan
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by CanadianMiniFan »

Thanks for the info Jamie, I believe what I’ve got is the shorter one, I’ll keep checking eBay and might just get mine recovered.
 
Chimi-Changa
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

It's been a fun summer tooling around in the DP, and there is always something to tinker with. I'm getting used to the close ratio gearbox, AS shifter and 2.93 combination. Pretty different experience from having a 260/6 and 3.25

I had some cutting out happening when the tank was low, so after checking fuel pressure and swapping FPR's I looked more into the in tank pump and hoses. I slightly lowered the tank and felt that the out line was getting slightly pinched. I/ve done some tank swapping before- so this may have happened on the last install. For good measure- I also threw in a good used pump in.

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The filter and main pump are not that old, so left them alone

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After trying a bunch of different ones, I've settled on the Racing Dynamics shift knob. The leather was wearing all over it, so just have the wood style working. This style fits the engagement feel of the shifter/ gearbox than the smaller round jobs. It's cracked but I don't mind. 

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I tried having an oil temp sensor hole tapped into the oil filter housing, as I have seen referenced here. I think the sensor is too long and effecting the start up and restart oil pressure- So I just put the standard style one back on, and will work on an oil temp sensor in the junction block that I'm using on the back of the head. 

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Swapped a new cluster bezel in, was sick of looking at the non-op oil temp and pressure display. While i was in there I put electrical tape over the inspection lights. They went on all the time, and at night the bright green light is somewhat distracting. 

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Cool find leather Hartge Keychain

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The brown leather one is the daily, Klein Tools fob on an M key (what came with car originally.) 

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On the scale with me (170#) dog (50#), full tank, spare tire and some stuff in the car. 

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Entered the local BMW CCA Concours D'Elegance Super clean class 

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Last edited by Chimi-Changa on Aug 21, 2026 1:46 PM, edited 3 times in total.
Nebraska_e28
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by Nebraska_e28 »

What are the lights to either side of the retro Alpine pull out?
Chimi-Changa
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

Nebraska_e28 wrote: Aug 22, 2026 1:53 PM What are the lights to either side of the retro Alpine pull out?



 
Hey LJ!

Both are George Graves units- Voltage meter on left (12v dot marked), Wide-band on the right.(2.5v input marked) 

I moved the voltage out of the dash pod to have both oil pressure and temp besides the coolant temp. 


side note. Yankee Doodle! This is my 1776th post!!  🇺🇸 
Last edited by Chimi-Changa on Aug 28, 2026 11:32 AM, edited 1 time in total.
tschultz
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by tschultz »

Nice weight. My us 535ii with all 535is bits, with ac and all stock and just me was 3440lbs. 
Chimi-Changa
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by Chimi-Changa »

I've been keeping an eye out for a large bore TB for a while to use with this motor recipe, and thanks Dave (Kojo) for posting this one online. Almost 70mm. So far, it's improving tip in throttle and over 3200 rpm seems to let the reigns out even more. 

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And more Hartge Goodness? I was using a RD strut brace since the build started in 2016 but finally a Hartge one came up to the surface. It's been a good week for the DP!

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kojo96
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Re: Operation: Hartge Jr. (Dirty Priest)

Post by kojo96 »

Nice! That engine bay looks like $$$
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