exhaust manifold bolts
Discussion
Had the misfortune of losing an exhaust manifold bolt the other day, Noticed the exhaust was blowing on the way home from work, but the little blighter made a break for freedom 2 miles from home (heard it fall out). Try as I might, I couldnt find it. The original owner of the car has some spares he is going to send me so no probs there, but has anyone else had problems with the bolts working loose? I had to go round the whole engine and tighten them all...some were very loose... I didnt tink bolts worked loose, even if the heads are helicoiled??
thats what I thought Wayne, However I did notice what looks like coppaslip residue (or some lubricant)on the threads. Guess that doesnt help. Once I get the replacement, I intend to go round and remove all the bolts, clean them with brake cleaner and apply loctite (non permanent) to the threads.
By the way, saw your car at Stoneleigh, it looks ACE. Just love that engine
By the way, saw your car at Stoneleigh, it looks ACE. Just love that engine
gritbox said:
, However I did notice what looks like coppaslip residue (or some lubricant)on the threads. Guess that doesnt help. Once I get the replacement, I intend to go round and remove all the bolts, clean them with brake cleaner and apply loctite (non permanent) to the threads.
If it helps I'd suggest they need some decent spring washers on them to allow for expansion & contraction. Also it would be much better if you used studs and not bolts. Boosted.
Boosted LS1 said:
gritbox said:
, However I did notice what looks like coppaslip residue (or some lubricant)on the threads. Guess that doesnt help. Once I get the replacement, I intend to go round and remove all the bolts, clean them with brake cleaner and apply loctite (non permanent) to the threads.
If it helps I'd suggest they need some decent spring washers on them to allow for expansion & contraction. Also it would be much better if you used studs and not bolts. Boosted.
Steve
gritbox said:
However I did notice what looks like coppaslip residue (or some lubricant)on the threads...and apply loctite (non permanent) to the threads.
Are you using ally heads? - I really wouldn't locktight them in there. Ive always applied copperslip to my bolts and never lost one yet. The copperslip stops them corroding and tearing out the threads when you remove them. As Mike suggested, use spring washers (if they will fit between the flanges) and just make sure they are reasonably tight. I doesn't hurt to check them now and then either.Steve_D said:
The gap between each pipe does not leave enough room for either nut or washer. The bolts used are the type with 12 point hex on the outside giving a reduced head diameter.
Steve
I'm using cap head bolts and these funky flat grippy type flat washers (they are serrated as opposed to traditional split washers). Steve
A quick google found them:
http://www.springmasters.com/disc-springs/serrated...
Edited by eliot on Monday 28th May 10:21
eliot said:
Steve_D said:
The gap between each pipe does not leave enough room for either nut or washer. The bolts used are the type with 12 point hex on the outside giving a reduced head diameter.
Steve
I'm using cap head bolts and these funky flat grippy type flat washers (they are serrated as opposed to traditional split washers). Steve
A quick google found them:
http://www.springmasters.com/disc-springs/serrated...
Edited by eliot on Monday 28th May 10:21
Top notch washer though.
Steve
crafty said:
GTWayne said:
^ As it is not a LS motor, I did not think that anyone would be interested 
Im very interested to see it.... just make sure you clean the oil off it before you take the photos.
GTWayne said:
crafty said:
GTWayne said:
^ As it is not a LS motor, I did not think that anyone would be interested
Im very interested to see it.... just make sure you clean the oil off it before you take the photos.
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