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Where to get exhaust manifold studs locally?
Posted: Tue Feb 17, 2009 8:45 pm
by ampz
Giving Nessy a service, looking at the studs they seem to be 10x1.25mm should i go to Mazda or is there an alternative?
While I'm pulling it all apart, i would rather have something that only needs tightening once.
Cheers
Nuno
Where to get exhaust manifold studs locally?
Posted: Tue Feb 17, 2009 9:08 pm
by Uncle Arthur
Super cheap or repco both stock them.
Where to get exhaust manifold studs locally?
Posted: Wed Feb 18, 2009 6:11 pm
by bigdog
CT recommends Nissan Sylvia studs, nuts and lock tabs - apparently the ducks whatsit and don't shake loose - off to your Nissan dealer Nuno!
Where to get exhaust manifold studs locally?
Posted: Wed Feb 18, 2009 10:00 pm
by Boyracer
Definately the Nissan Studs/nuts/lock plates are the ones to use...all the Turbo MX5 racers are using them now...
Where to get exhaust manifold studs locally?
Posted: Thu Feb 19, 2009 1:43 am
by sabretooth
I actually priced these up from Mazda. They wanted $10 per stud, and about $6 per nut!
Multiply that by 9...
Where to get exhaust manifold studs locally?
Posted: Thu Feb 19, 2009 8:27 am
by Boyracer
The Nissan studs we use are just the ones that mount the turbo to the manifold...so only need 4...still a bit expensive but worth it.
Where to get exhaust manifold studs locally?
Posted: Thu Feb 19, 2009 5:23 pm
by ampz
the turbo to manifold is fine (touches wood)...
My issue is the manifold to head studs, they have been used a few times and one has snapped
and another has stretched threads...
Whilst replacing the studs, i'll be fabbing a downpipe bracket to the gearbox to relieve some stress off the manifold.
Would repco studs be sufficient?
Where to get exhaust manifold studs locally?
Posted: Mon Mar 02, 2009 11:20 am
by CT
I would use the OEM studs if possible into the head. Definitely brace the turbo and consider adding a flex joint to your exhaust system as well.
Where to get exhaust manifold studs locally?
Posted: Thu Mar 05, 2009 8:35 am
by ampz
Thanks Chris.
I ended up grabbing Nissan studs and nuts off the RB/SR engines. Same thread/pitch and almost 1/2 the price of the Mazda ones ($50 for 10 instead of $80 for the Mazda equivalent).
I figure, since the Nissan engines are already turbocharged, these should be suitable for the higher temps the manifold carries.
After the brace goes on, I will need to incorporate a flex joint as the rear coupling (just past the diff) has also cracked, but I daresay that was due to a ripple strip at Oran Park
