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Trouble Re-installing Thunderheader 2000 FXDX

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Old May 13, 2019 | 11:46 AM
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Default Trouble Re-installing Thunderheader 2000 FXDX

Having trouble re-installing my Thunderheader 2-1 on 2000 FXDX. I replaced the stock gaskets with SE flat gaskets. When I line up both ends of the exhaust, it fits. Here's my problem! The front exhaust flange is getting stuck on the threads of the outer stud. I fit the flange around the studs without the exhaust to make sure studs weren't messed up. No problems.

Do I just pull the pipe a little to flush the flange against the head? It's not making any sense. Is it the gaskets? Has anyone else had this problem when installing this system?

Thanks,
Rob
 
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Old May 13, 2019 | 11:55 AM
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When installing the exhaust you have to start with the front and work back from there. Is that what you're doing?
 
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Old May 13, 2019 | 12:56 PM
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Yes, I'm lining up the front and finger tightening the nuts onto the studs. I'll continue on to line up the rear and do the same. Once I get back to the front, the flange doesn't slide flush. So I wasn't sure if the pipe just needs to be pulled a little to get the flange over the remaining threads to be flush.
 
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Old May 13, 2019 | 08:41 PM
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I'm not familiar with your exhaust but on mine, and most others I've seen, the flanges do not sit flush to the exhaust port.
 
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Old May 15, 2019 | 07:31 AM
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It takes some wiggling and screwing around since it's a one-piece pipe. My own experience with the SE flat gaskets and my thunderheader is that I couldn't get the pipe to seal up until I went back to the stock, tapered gaskets.
 
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Old May 29, 2019 | 05:09 PM
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Hey thanks guys! I think i'm going to try the stock gaskets. Can't get any worse i guess. I'll give it a shot.
 
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Old May 30, 2019 | 06:58 AM
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Originally Posted by DynaCaps9
Hey thanks guys! I think i'm going to try the stock gaskets. Can't get any worse i guess. I'll give it a shot.




Think is a Good Idea what I had to do when installed my V&H 2:1 ..
 
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