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Old 01-12-2021, 10:06 PM   #1
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Workhorse exhaust gasket

Hi everyone! Iím replacing the donut flange gasket on a 2004 Dolphin. New donut gasket is probably 1/4 wider. Has anyone run into this? If so did compensate for the larger gap between the flange plate and the exhaust pipe off the manifold with washers or just tighten without crushing the new gasket? Hope that makes sense!
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Old 01-12-2021, 11:50 PM   #2
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When I replaced mine, I had the same problem. I went to Autozone and bought new studs with new nuts. I simply tighten until very snug. Have not had any problems, but with that said, I have only put about 2500 miles since replacement.
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Old 01-13-2021, 07:37 AM   #3
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If you have a 8.1 GM engine then the correct donut gasket is Federal- Mogul #61010.
I installed the gasket, tightened the nuts then got the engine hot and re-tightened the nuts and double nutted the bolts.
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Old 01-13-2021, 09:09 AM   #4
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Thanks for the replies!! Iíll follow the suggestions and see how it all works out!!
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Old 01-17-2021, 02:13 PM   #5
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Update on the exhaust leak. Needed to get this done and couldnít locate a federal-mogul 61010 but was told a fed-pro 61010 was the same. Not even close! Installed the wider gasket that the parts manual called for. Weíll see how it works out! Fixed the leak and cleared the check engine light. All good so far!
Thanks for the help!
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Old 01-21-2021, 02:21 AM   #6
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Exhoust Gasket Leak

Check your motor mounts if worn they will wear out the donuts.
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Old 01-21-2021, 02:33 AM   #7
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Exhoust Donut Leak Fix
Exhaust leaks from the donuts on an 8.1 motor are some times caused by
worn out motor mounts. If the motor moves while accelerating or shifting
it wears out the donuts. Some thing has to give.
Check out how to test them on You Tube.
Replace them with poly urethane ones and they will last forever.
PS: you will have an increase in torque as that energy wasted on motor
twist will now go to the drive shaft.
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Old 02-07-2021, 11:31 AM   #8
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Quote:
Originally Posted by 2002 Dolphin View Post
Exhoust Donut Leak Fix
Exhaust leaks from the donuts on an 8.1 motor are some times caused by
worn out motor mounts. If the motor moves while accelerating or shifting
it wears out the donuts. Some thing has to give.
Check out how to test them on You Tube.
Replace them with poly urethane ones and they will last forever.
PS: you will have an increase in torque as that energy wasted on motor
twist will now go to the drive shaft.


Thanks
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