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Exhaust leak between exhaust manifold and down pipe

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Old 02-02-2017, 03:41 AM
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Exhaust leak between exhaust manifold and down pipe

I have a 1988 22re 4wd 5 speed, with an exhaust leak at the flange right below the exhaust manifold. The source of the leak is the nut closest to the driver side fender backed off and is gone. Everything I have read has said to replace the studs and gaskets, but I cannot find a reliable part number to order because I have read those exhaust gaskets have one size for the manifold and one for the catalytic converter. Also, the studs that have been suggested are doorman and they come in a 2 pack is this correct? Will I have to order 2 of these to replace all 3 studs and nuts on the flange?

Thank you for the help.
Old 02-02-2017, 04:01 AM
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Give these numbers with your VIN to the dealer parts counter..
17410a, nut x3
17152, stud x3
17410b, forward gasket x2
17451, rear gasket x1

And it's an "intermediate/forward pipe". Downpipes are what connects a turbocharger to a forward pipe. Sorry just a pet peeve =P and I haven't had my coffee
Old 02-02-2017, 04:04 AM
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Originally Posted by Ben Fulcher
I have a 1988 22re 4wd 5 speed, with an exhaust leak at the flange right below the exhaust manifold. The source of the leak is the nut closest to the driver side fender backed off and is gone. Everything I have read has said to replace the studs and gaskets, but I cannot find a reliable part number to order because I have read those exhaust gaskets have one size for the manifold and one for the catalytic converter. Also, the studs that have been suggested are doorman and they come in a 2 pack is this correct? Will I have to order 2 of these to replace all 3 studs and nuts on the flange?

Thank you for the help.
Q&A,
Yes two pack, yes, and the first ones not really a question but yes it's two sizes you'll need three in total if your doing them all.
Old 02-02-2017, 05:18 AM
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Originally Posted by Co_94_PU
Give these numbers with your VIN to the dealer parts counter..
17410a, nut x3
17152, stud x3
17410b, forward gasket x2
17451, rear gasket x1

And it's an "intermediate/forward pipe". Downpipes are what connects a turbocharger to a forward pipe. Sorry just a pet peeve =P and I haven't had my coffee
Thanks I know down pipe isn't the correct term had a brain fart while working on my coffee myself, I would have said y pipe but that is for V style engines so. How much does that cost from the stealership?
Old 02-02-2017, 05:20 PM
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My NAPA has this hardware on hand but comes with brass nuts. Im getting ready to make a post about it.
Old 02-02-2017, 08:10 PM
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Under 10$ for the hardware. Not sure about the gaskets
Old 02-03-2017, 03:07 AM
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I was looking at the Toyota Parts Departments. Will the Doorman Studs and nuts work for this application?
Old 02-03-2017, 04:01 AM
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Any proper sized m10-1.25 40L hardware will fit, but for 50¢ more I'd rather have OEM split or flared exhaust hardware over dorman brass straight nuts.

unless your dealership is Stevenson down in Denver, in which case you'll need to rising sun discount to get a decent price. I don't know why they over charge so much over everywhere else..

Last edited by Co_94_PU; 02-03-2017 at 04:06 AM.



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