Hey guys, i've recently bought an ITR turbo and i have been having some problems with the wastegate and turbo bolts coming lose while driving.

Obviously there is a lot of vibration and immense heat going through the manifold under boost so locktite doesnt do any good.

Heres a pic of my current set up. If anyone who has had similar problems could offer advise i would be extremely grateful!



I look forward to reading your replies

Kev.

 

Perhaps something as simple as a spring washers would keep things tight even when the car goes through so many heat cycles.

You can also try to use studs with nuts instead of bolts.

 

post up or search around in the forced induction forum, I have heard of this sort of thing before and Im sure they could better assist you.

 

ya thats kinda how my **** [freak]ed up in the beginning. bolts started comming out and falling off on the freeway

 

Thanks for the replies guys, i tried spring loaded washers and they were useless as well. after about 20mins of hard driving they start to come lose.

I did a quick search on the forced induction forum and couldnt find anything clear cut. Ill try posting up there.

Thanks again

 

Double check the thread pitch and size. maybe the previous owner used a standard bolt that fit ok at the time when he needed metric.

Heat wrap your manifold

 

on my turbo bolts i put a little tackweld with the tig welder to hold them in place. its just a small tack so if i ever need to take the turbo off i can stil get a wrench on the bolts and break the weld. its been over 4 years and nothing has come loose yet.

also atp turbo also sales studs with locking nuts that wont back under high heat situations. heres a link http://www.atpturbo.com/Mercha...e=FST

 

Call Inline Pro and ask them.
http://www.inlinepro.com/
On mine it looks like studs and sort of "castled" nuts holding the manifold on.
No leaks or anything so far, but then I haven't yet begun to "beat on it".

P.S. Maybe an e-mail since I didn't realize you were outside the US.

Here's a pic of mine:



Modified by Zygspeed at 5:39 PM 3/19/2008

 

Wait till the motor is really hot and tighten them down

 

easy solution is.. . to tack weld.. i got sick of that **** when i had my itr.. had no problems after tack welding.. might be a bitch to remove but no worries about snapping or loose bolts.,.

 

Safety wire? Helped on my brother's SR20, same sort of problems.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Zygspeed &raquo;</TD></TR><TR><TD CLASS="quote">Call Inline Pro and ask them.
http://www.inlinepro.com/
On mine it looks like studs and sort of "castled" nuts holding the manifold on.
No leaks or anything so far, but then I haven't yet begun to "beat on it".

P.S. Maybe an e-mail since I didn't realize you were outside the US.


Modified by Zygspeed at 5:39 PM 3/19/2008</TD></TR></TABLE>
Have you had a problem with your filter rubber melting? I had mine just like yours. It was a knn and that bitch melted off...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Henryx33 &raquo;</TD></TR><TR><TD CLASS="quote">Have you had a problem with your filter rubber melting? I had mine just like yours. It was a knn and that bitch melted off...</TD></TR></TABLE>

Thanks for the warning.

Though I do have a bunch of Thermo-Tec wrap and a turbo blanket I've been meaning to install.

 

loc tite

 

And now the right way to do it...
Tab Lock Washers
"Tab lock washers are round washers designed with tabs or lips that are bent across the sides of a hex nut or bolt to lock the nut in place. There are various methods of securing the tab lock washer to prevent it from turning, such as an external tab bent downward 90 degrees into a small hole in the face of the unit, an external tab that fits a keyed bolt, or two or more tab lock washers connected by a bar. Tab lock washers can withstand higher heat than other methods of safetying, and can be used safely under high vibration conditions. Tab lock washers should be used only once because the tab tends to crystallize when bent a second time."


Tab washers are thin metal washers designed with two or more tabs which project from the outside diameter. The washer is placed below the head of the bolt or the nut and following tightening one or two tabs are bent upwards against the flats of the bolt/nut head. The remaining tab is bent down into a suitable hole in the surface being fastened or over a local edge, if one is available.



Modified by The Dude at 11:49 PM 3/19/2008