i noticed a lotta problems with nuts n bolts liking to back outat turbo manifolds and downpipes n stuff. what do you guys use to stop it ?

at first i used spring washers and read corky bell and figured that its not the best thing to use cuz the heat flattens it out anwyasy leavin the springyness none existent. it said to use serrated washers. which i will be purchaing soon.

also im thinking of getting studs instead of bolts. what do you guys thinK >? or should i jsut stick with bolts and not bother with studs and use it with the serrated washers.

 

crush washers. I had same problem as you, heat + vibration backed everthing out.

I put crush washers on everthing I could, never have problems now.

 

i've had good success using studs with flat washer, then lock washer then nut.

but they are one use only cause the lock washers are typically deformed afterwards.

 

when I was having my problems I picked up some Crushed locking nuts (I beleive thats what there called). worked really well. Now If I could just find a gasket that doesn't burn up, that would be great.

 

I use studs, lockwashers and nuts=Never had an exhuast leak

Tony1 also gave me a pointer on the Downpipe bolts, you can use studs, washers, and the locking nuts(honda, the ones that are used on the studs for your exhuast manifold) He said those work really well

I hated my old setup because it consisted of bolts, and I had an exhaust leak weekly .

 

the best way is to setup a downpipe with vband it will save you headaches

 

I have never had a single problem with those bolts.

I just use the plain stainless 10mm bolts.

Until last night. One of them backed out and I developed this nasty exhaust leak... yeah... Downpipe has to come down for the 4th time in 2 weeks.... Grrrr....

I think I'm gonna look for some studs.

 

hahah one of the biggest problems. anwyays im ordering serrated lock washers and studs for my future manifolds. another 150$ down the drain just to try and provide you gusy with a better quality product.

 

ttt

 

tack weld

 

On a related note- what type of stud/bolt is recommended? Stainless or 10.9 or ??
Also- doesn't the extreme heat negate the "spring" of a spring washer?

Thanks
Ben

 

I had the same problem with the inline pro and sc61. The bolts kept backing off. I used studs, then used a crush washer, reg washer, and nut. Tightened it down like a **** and tacked the blots.

Havent backed off again!

Thank Art for that advice!

 

how about safety wire?

 

i was looking into that. seems pretty promising

 

where do you guys get your crush washers? what do they look like?

my downpipe bolts fall out once a month.

 

Just drive your car around the salty wet roads up here and Rustlock every bolt on the freaking car.

 

one of my customers had his bolts back out like tnohgin. turbo fallin off on the freeway n all that shitty stuff so im tryin to stop the violence . haha i dunno if i wanan tack the bolts on tehre cuz itll prob be hard to remove afterwards.

 

Use small amount to tack. If you need them off you can use a dremmel to gently remove them.

 

sounds good. i guess ill prob do that. u guys use yoru tig or mig to tack?

 

hey phil, one of my dp bolt fell off too, it was the really tough one to get to. If you don't remember me, i had the 15g in the auto teg. Do you think its ok just to drive with the other 2 holding it?

 

After my turbo bolts backed out a little I just went over them every day and tq'ed them down for about a week and haven't had a problem since.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integrx &raquo;</TD></TR><TR><TD CLASS="quote">hey phil, one of my dp bolt fell off too, it was the really tough one to get to. If you don't remember me, i had the 15g in the auto teg. Do you think its ok just to drive with the other 2 holding it?</TD></TR></TABLE>

prob be a good idea to change it howevr its not a super big deal if theres not a big leak. wont do any harm to the car.

 

Wouldn't ya know that as soon as I say I never used to have a problem with my bolts backing out that tonight as I am driving home.... ALL 4 BOLTS back out and my turbo is hanging by just the downpipe.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MarkC &raquo;</TD></TR><TR><TD CLASS="quote">Wouldn't ya know that as soon as I say I never used to have a problem with my bolts backing out that tonight as I am driving home.... ALL 4 BOLTS back out and my turbo is hanging by just the downpipe..... </TD></TR></TABLE>
Mark, I have some studs if you need any.

art

 

All my downpipe and mani bolts used to work loose and fall out. Now I have studded everything and use special nuts (dunno what you call them) that cuts into the stud when you tighten them, been good so far.