Exhaust Tick
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Road Master
Joined: Nov 2013
Posts: 1,216
Likes: 286
From: Buford, GA
Exhaust Tick
Ok guys...I installed a set of Rush Racing 6020ST-175 pipes on my '91 Heritage Softail Classic back in January. There's a tick coming from the exhaust at idle that seems to be coming from the top pipe. I pulled the pipe to make sure there was nothing loose inside the pipe that could cause a rattle. Still have the tick. Any ideas?
Sorry...the second video is a little shaky.
Thanks,
Tony
Sorry...the second video is a little shaky.
Thanks,
Tony
Thread Starter
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Road Master
Joined: Nov 2013
Posts: 1,216
Likes: 286
From: Buford, GA
Tony
Outstanding HDF Member
Joined: Apr 2012
Posts: 2,938
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From: North Florida
Compression / leak down test was done about a year and a half ago and it was good. Still runs good, just that anoying tick when idling.
Thanks Dale...I wish I'd know about the QC before I picked them up. I replaced the gaskets when I installed the pipes with tapered mesh gaskets. Also used Never Seize on the o2 sensor plugs. I did pick up a new set of HD tapered 65324-83B gaskets this afternoon. They're still tapered, but harder than the mesh gaskets. I'll see if I can find a leak...quit smoking 11 years ago, otherwise I'd use a cig...but don't need to get the temptation again.
Tony
Thanks Dale...I wish I'd know about the QC before I picked them up. I replaced the gaskets when I installed the pipes with tapered mesh gaskets. Also used Never Seize on the o2 sensor plugs. I did pick up a new set of HD tapered 65324-83B gaskets this afternoon. They're still tapered, but harder than the mesh gaskets. I'll see if I can find a leak...quit smoking 11 years ago, otherwise I'd use a cig...but don't need to get the temptation again.
Tony
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,093
Likes: 7,622
From: Poolville
Take the rear pipe off and look for a carbon trace. As loud as that leak is you should see something and just for the hell of it do a comp and leak down test. Its definitely in the rear cylinder or exhaust.
Last edited by 98hotrodfatboy; Apr 30, 2015 at 07:33 PM.
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Road Master
Joined: Nov 2013
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From: Buford, GA
The tick started about a month after I changed the pipes, so sometime in February. I did re-torque the exhaust flanges. From what I can tell, it only does it at idle though. It sounds like the tick is coming from the top pipe. In the second video, the upper exhaust pipe without the heat shield on it would not allow me to hold my hand over it…it would force my hand out. The bottom pipe still had the heat shield on it and is not air tight like the actual exhaust pipe, there’s a gap around where the pipe goes into it and the cutout on the back.
Last edited by Tony_N; Apr 30, 2015 at 07:35 PM.
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Joined: Mar 2010
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From: Poolville
Actually by the video it sounds as if your getting it at higher rpm's as well. When you put the pipes on did you re-jet the carb? For now Pull the plugs and post a pic. It will tell a lot.. Just let us know which one was the rear....Thanx....
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Road Master
Joined: Nov 2013
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From: Buford, GA
I'll pull the plugs in the morning after I get off work and get a little rest. The carb was re-jetted when I changed the air cleaner out and I have checked the plugs in the past to make sure they aren't white. I'll check in the am to see what jets are in it. From memory I think it's 45/185 with a CVP needle.