Anyone tried lockwired banjo bolts on their M30 oil rail?

E28 technical advice asked and given! Troubleshooting, modifications and more.
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RonW
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Joined: Feb 12, 2006
Location: Long Island, NY

Anyone tried lockwired banjo bolts on their M30 oil rail?

Post by RonW »

This fellow sells banjo bolts drilled for locking wire. Looks good to me. Has anybody actually tried either the idea or the product itself?

[Edited 4/18/2008 to enable BBCode]
Last edited by RonW on Apr 18, 2008 9:42 PM, edited 1 time in total.
Mark 88/M5 Houston
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Location: Far North Houston

Post by Mark 88/M5 Houston »

I've seen those for sale. Seems like a good idea to me considering the damage from a loose banjo bolt. Nothing on my current land bound vehicles is safety wired, the 170 is a different story. I used to do a lot on racing cars and motorcycles. Remember to budget for the safety wire (if not included) and pliers if you want it to look neat and tidy.
DMNaskale
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Location: Tampa Bay USA

Post by DMNaskale »

I got a couple of sets from him, the B35 I am putting back together right now will be my first use of them. They look good, he provides everything needed to do the job including instructions. Previously I had fabricated some little wrap-around washer/locks from thin aluminum, but these seem like a better solution, or at least simpler in that I can just send him a fair price and save myself the time in making the little washer devils. Safety wire is a proven solution if properly done.
Patrick McHugh
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Location: Richmond, VA

Post by Patrick McHugh »

Mark, are you an A&P or a pilot? Or both?
Peete
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Joined: Feb 12, 2006

Post by Peete »

[QUOTE="Patrick McHugh"]Mark, are you an A&P or a pilot? Or both?[/QUOTE]

Actually we are AMTs now. Aircraft Maintenance Technician.
Safety wire is so last century. We use safety cable to hold together the big high bypass hoovers. I forgot the name of the company who makes them.
Cables are quicker to install in most places but they aren't as strong as good 'ol .032.
Mark 88/M5 Houston
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Location: Far North Houston

Post by Mark 88/M5 Houston »

Working on my private ticket very intermittently. ~_~

Not an A & P, but my instructor/mechanic will inspect and sign off most all my work.

Got a call from him today and he just got signed off to instruct in this airplane today.Image

I cant wait to log some L-29 time along with my 170 & 172 hours. :D
Rich Euro M5
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Location: Klein, Texas

Post by Rich Euro M5 »

[QUOTE="Mark 88/M5 Houston"]Working on my private ticket very intermittently. ~_~

Not an A & P, but my instructor/mechanic will inspect and sign off most all my work.

Got a call from him today and he just got signed off to instruct in this airplane today.Image

I cant wait to log some L-29 time along with my 170 & 172 hours. :D [/QUOTE]

Mark,

You should get with it and finish your private by flying as often as you can. When you don't have many hours, you haven't built your skills to the point of things being intuitive. Everytime you take a substantial break in training your skills atrophy and you must relearn some things.

I'm probably going to finish up my Commercial Ticket later in the year. I only need to buid some PIC night time, do the prep, take the written and check ride. Should be a piece of cake compared to the Instrument Rating I added over 10 years ago. I'm not looking forward to doing an Instrument Competency ride. It'll probably take me longer to get my instrument skills back than it will to get ready for the Commercial checkride.

About the chance to fly the L-29. Sounds like fun, you'll probably only be about 10 miles behind the plane.

Rich



[Edit by Euro M88 on [TIME]1137889465[/TIME]]
Patrick McHugh
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Location: Richmond, VA

Post by Patrick McHugh »

I agree with Euro M88. I did my private license in the same manner, flew every few weeks, and it felt like i was taking three steps foward and two back each time. The next summer, i took out a loan and flew every single day, all day. I did the Instrument in three weeks, then i did the commercial concurrently with the CFI-A, and the CFI-I. The crash course method was 100% more productive, and cost effective. BUT i would strongly reccomend you rent or fly with a friend for a while before you attempt single pilot IFR or a private student. You would be suprised how much you still have to learn after a checkride. I sometimes scare myself looking back at how little i knew and was flying an airplane all alone. Give me a buzz if you ever need advice or get stumped!
k wronski
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Post by k wronski »

BMW now supplies the replacement banjo bolts for the cam oil supply rail with loctite already on the threads if you have concerns about them loosening up.
I replaced the originals 3yrs. ago when I rebuilt the head on my car and they're still secure.
tomarocca
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Joined: Feb 12, 2006

Post by tomarocca »

BMW uses Loctite on their replacements.
NOTE: use Loctite BLUE; NOT RED
RED is an epoxy that will never come off.
RonW
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Location: Long Island, NY

Post by RonW »

k wronski wrote:BMW now supplies the replacement banjo bolts for the cam oil supply rail with loctite already on the threads if you have concerns about them loosening up.
I replaced the originals 3yrs. ago when I rebuilt the head on my car and they're still secure.
You have to make sure the holes are clean before installing them to get the locking benefits.
The drilled ones I was asking about are the new kind- they have the thread lock installed. The main benefit for me is that with the locking wire, a visual inspection is all you need to know they aren't loose. In fact, the fact that they're lockwired is good enough for me.

[Edited 4/18/2008 to enable BBCode]
Last edited by RonW on Apr 18, 2008 9:43 PM, edited 1 time in total.
c_spargo
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Location: In the basement with greasy hands

Post by c_spargo »

Funny you should mention it. :D Here's pics of my recently safetywired banjo bolts. I've got two spares if anybody wants me to drill them for you. I'm considering putting a ziptie or something (or perhaps another piece of wire) to keep the wire from vibrating against the tube itself, I'll probably wait and see if it's a problem first.

http://www.bluewaterdirect.com/images/5 ... ywire1.jpg
http://www.bluewaterdirect.com/images/5 ... ywire1.jpg
http://www.bluewaterdirect.com/images/5 ... ywire1.jpg
http://www.bluewaterdirect.com/images/535/pistons.jpg


[Edit by cspargo on [TIME]1137956117[/TIME]]
RonW
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Location: Long Island, NY

Post by RonW »

cspargo wrote:Here's pics of my recently safetywired banjo bolts.
Maybe you meant...?

http://www.bluewaterdirect.com/images/5 ... tywire.jpg
http://www.bluewaterdirect.com/images/5 ... ywire3.jpg

[Edited 4/18/2008 to enable BBCode]
Last edited by RonW on Apr 18, 2008 9:43 PM, edited 1 time in total.
DMNaskale
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Location: Tampa Bay USA

Post by DMNaskale »

BMW now supplies the replacement banjo bolts for the cam oil supply rail with loctite already on the threads if you have concerns about them loosening up.


I am most likely a wee bit OCD afflicted, and the loctite might do the job, but if I am going to get any sleep at night I have to know there is something besides a little blue goo holding those things in. Considering that they are banjo bolts run through a hollow partially crushed tube with hot pressurized oil pumping through them and they will ruin your valvetrain if they come loose, a little mechanical locking action is cheap insurance.
c_spargo
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Joined: Feb 12, 2006
Location: In the basement with greasy hands

Post by c_spargo »

[QUOTE="cspargo"]Here's pics of my recently safetywired banjo bolts.[/QUOTE]

[QUOTE="RonW"]Maybe you meant...?

http://www.bluewaterdirect.com/images/5 ... tywire.jpg
http://www.bluewaterdirect.com/images/5 ... ywire2.jpg
http://www.bluewaterdirect.com/images/5 ... ywire3.jpg[/QUOTE]

Right.... :D
Guest

Post by Guest »

I installed them the last time the valves were adjusted. I was able to remove one of the old bolts with my fingers. As far as I know everything is OK I'll find out next time the valve cover is off.
Mike W.
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Location: California Whine Country

Post by Mike W. »

I use red locktite and I've never had one come loose that I locktited. And my 535 has 113K
on it since I put the head together. With red you get some adhesion even if it isn't all that
clean, with blue it does have to be pretty clean.

Contrary to another post, red locktite is not an epoxy, it is a single part threadlocker, not
a 2 part.
Walt
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Joined: Feb 12, 2006
Location: Seattle

Post by Walt »

I'm considering putting a ziptie or something (or perhaps another piece of wire) to keep the wire from vibrating against the tube itself, I'll probably wait and see if it's a problem first.


I doubt you'll have an issue. I wired mine 4-5 years and have transferred them twice.
The bar shows no wear.

Walt
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