Bolt size help

SaskTSI · Oct 16, 2019

Hey everyone I need to know what size the 4 bolts are that hold the exhaust to the turbo housing, not the manifold bolts. Thanks
(Dont know If it matters but I have a big 16g)

AWD-Tony · Oct 16, 2019

If you're looking for 02 housing to turbo, they're 14mm m10 x 1.25 31mm long. I used a stud and nut for the hard to reach one.

https://www.dsmtuners.com/threads/what-size-is-that-bolt-screw-fastener.304059/

SaskTSI · Oct 16, 2019

tk106 said:
If you're looking for 02 housing to turbo, they're 14mm m10 x 1.25 31mm long. I used a stud and nut for the hard to reach one.

Where by chance did you find them?

tk106 said:
If you're looking for 02 housing to turbo, they're 14mm m10 x 1.25 31mm long. I used a stud and nut for the hard to reach one.

Also would there be any power loss or harm in driving the car with it leaking from there?

AWD-Tony · Oct 16, 2019

Depends on the size of the leak since it’s pre 02 sensor. You’ll be fine if it’s a small leak but get it fixed.

SaskTSI · Oct 16, 2019

tk106 said:
Depends on the size of the leak since it’s pre 02 sensor. You’ll be fine if it’s a small leak but get it fixed.

I mean its not a small leak

AWD-Tony · Oct 16, 2019

SaskTSI said:
I mean its not a small leak

Pic would be nice.

If it’s your daily, just don’t get on it. I had a two hour drive when my wastegate broke off my manifold on my 2g a long time ago. Weld literally broke off completely. Cruise and idle was fine.

SaskTSI · Oct 16, 2019

tk106 said:
Pic would be nice.

If it’s your daily, just don’t get on it. I had a two hour drive when my wastegate broke off my manifold on my 2g a long time ago. Weld literally broke off completely. Cruise and idle was fine.

It's my daily and it runs fine when I'm on it its just a loud leak you can hear

AWD-Tony · Oct 16, 2019

SaskTSI said:
It's my daily and it runs fine when I'm on it its just a loud leak you can hear

You might get more power actually but I personally never push my cars when something is off. I don’t think you’ll hurt anything but again, your o2 readings will be off so bad fuel economy is probably the worst case scenario

Mech Addict · Oct 16, 2019

It shouldn't be that hard to fit new gasket and bolts if all the old ones come apart OK. Exhaust fasteners are notorious for twisting in half, making a routing job a much more serious affair. Pre-soak liberally with some quality break-free penetrant, and sometimes the use of a propane torch can be effective.

SaskTSI · Oct 17, 2019

Mech Addict said:
It shouldn't be that hard to fit new gasket and bolts if all the old ones come apart OK. Exhaust fasteners are notorious for twisting in half, making a routing job a much more serious affair. Pre-soak liberally with some quality break-free penetrant, and sometimes the use of a propane torch can be effective.

That jobs already done for me haha waiting on the new gasket but the bolts are spitting themselves out

BLACK'98DSM · Oct 17, 2019

SaskTSI said:
the bolts are spitting themselves out

Crush washers, if that fails then Loctite

AWD-Tony · Oct 17, 2019

SaskTSI said:
That jobs already done for me haha waiting on the new gasket but the bolts are spitting themselves out

Did you torque them? Hard to do on the car and the one bolt is impossible. Clean the threads on the housing.

BLACK'98DSM · Oct 17, 2019

Yea I guess torque is the first step LOL

AWD-Tony · Oct 17, 2019

Also check the flatness. Most likely they're warped. If so, remove both, put sandpaper on a flat surface and go to work.

SaskTSI · Oct 17, 2019

tk106 said:
Also check the flatness. Most likely they're warped. If so, remove both, put sandpaper on a flat surface and go to work.

The 2 left in there are staying tight after I tightened them down, couldnt get a torq wrench in there so i just tightened as much as possible, but they were spitting out before then hence why i only have 2 bolts

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Bolt size help

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