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turbo to manifold coming loose


fush

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I am having trouble with my turbo coming loose from the exhaust manifold. The kit I got sent some shady bolts with it and they wont stay tight.

 

I think it may have something to do with the downpipe and placement of the flex piece in it causing it to vibrate loose but I am not totally convinced. I've never seen how a factory turbo car manifold looks so I have nothing to go on but I think using studs in place of the bolts may help.

 

Can anyone recommend a place I could buy some studs? I am thinking if I use those with some lock washers copper nuts and high heat loctite I may be able to rememdy the problem.

 

Also any other recommendations on what to do to keep this thing together would be appreciated? Thanks.

 

-jeff

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Not sure about your specific application, however, with DSM's, if you dont have a bolt holding the downpipe to the block, having the turbo come loose is a common problem. I guess the unsupported weight and fluxuations in temp. (and of course vibration) cause the studs/nuts and bolt to come loose (dsm's use three studs and one bolt).
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So you are saying that the down pipe bolts to the block as well as to the turbo to help curb vibration? Dont happen to have a picture by any chance do you?

 

If thats the case I may be able to modify the downpipe so I can bolt it to the back of the block to provide more support. Here is a pic of what the setup looks like.

 

http://palpatine.infinitedata.net/~jweber/turbo.gif

 

Thanks for the reply.

 

-jeff

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before I had even cracked the bolts in the T25, I put on the 3" turbo back exhaust and forgot to put in the groundstrap/downpipe-to-block bolt and the T25 came seperated from the manifold. I put the 16G on, this time bolting the downpipe with no seperation/loosening.

 

Maybe my t25 was already loose, but I've heard other complaints/comments about that downpipe bolt, and turbo's coming loose.

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Originally posted by RSXX-7105:

From your picture, it looks like getting a larger turbo may help the vibration problem too...heheh :D j/k looks like a nice setup!

 

K

A bigger turbo has clearance issues. :( Everyone I talked to running the t3/t4 setup had to hammer in the firewall to get it to fit half way decent. Oh well when the time comes for the vr to get a turbo it should have something a little bigger. smile.gif

 

-jeff

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