Mark44
Katie's Boss
- Location
- 100% one place
LOL usually you safty wire the bolts from head to head.
Mark44
Mark44
The end of loose bolts
- Thread starter Waternut
- Start date
Yeah I know... :shhh: I tried to attach them head to head so many times. It's so easy to do when the bolts are easily accessible, aren't surrounded, and aren't obstructed by various other things.
- Location
- Charlotte, NC
AHHHH SNAP!!!!!!!!!!!! thats my problem!!! my dad and i were JUST talkin like 5 minutes before i came on here. he said "ya know what, i beat its your gasket. every time those bolts rattle loose the gasket it gone."(i've been making my own gaskets, just this one, all season, with tractor supply gasket making PAPER) so we came to conclusion that the gasket gets wet, then hot, then disinigrates. We are 99.9999% sure thats my problem :stups:
im gonna order the REAL gasket tomorrow from factory pipe, or when ever they're open next
JFW what gasket are you using?
Ericfox
Do it twice?That's DooDoo
- Location
- Akron area --> OHIO!
lockwashers and some loctite not enough? use some red... I use blue and it works fine..... interesting solution though Ive never seen it.... dont know jack about the aviation industry...
I tried lock washers once before... They create really nice gouges on the bolt head mounting surface.
Yes you need to use a metal core gasket. I destroyed 4-5 FP gaskets on my 750 before I ordered a big sheet from NAPA. It's not as high of quality as the FP gaskets but it's a metal core and if the bolts hold up, the gasket is fine. One thing to think about though is... Your bolts can loosen because of the gasket disintegrating but a rattling pipe and hot exhaust can destroy a perfectly good gasket pretty quick as well. I've caught loosening bolts really early before and the gasket has been reuseable. I've also rattled all 3 bolts out of the hole and the gasket was in the bilge twisted and completely annihilated. Pretty sure the metal core just helps keep all the gasket material together so the force of the exhaust doesn't blow it to bits. (I tried a normal gasket material for my head gasket on the 750 and it blew apart after 20-30 minutes).
Yes you need to use a metal core gasket. I destroyed 4-5 FP gaskets on my 750 before I ordered a big sheet from NAPA. It's not as high of quality as the FP gaskets but it's a metal core and if the bolts hold up, the gasket is fine. One thing to think about though is... Your bolts can loosen because of the gasket disintegrating but a rattling pipe and hot exhaust can destroy a perfectly good gasket pretty quick as well. I've caught loosening bolts really early before and the gasket has been reuseable. I've also rattled all 3 bolts out of the hole and the gasket was in the bilge twisted and completely annihilated. Pretty sure the metal core just helps keep all the gasket material together so the force of the exhaust doesn't blow it to bits. (I tried a normal gasket material for my head gasket on the 750 and it blew apart after 20-30 minutes).
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- Location
- Hokesbluff,al
x2
Yeah I used quite a few originally and that's why I switched. When you blow through 4-5 in about a month at $6-$7 each plus shipping, it starts getting really expensive.
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
I will tell you this much,the bolts should fit into the holes without a lot of slop,if the holes in the pipe are way too big no amount of loctite will hold them in the manifold,I run across this on 720 Seadoo engines all the time.The solution there is to drill out the holes in the pipe and install stainless steel collars,then I use four studs instead of bolts,studs have about 30% more clamping force than bolts,I have never had a problem with exhaust bolts coming loose after this was done.
Motorheads5
Livin the generation gap
- Location
- ketchikan alaska
The safety wire used on aircraft is not intended to keep bolt's from working loose. it's to keep them from falling completely off.