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post #1 of 3 Old Aug 18th, 2011, 4:12 am Thread Starter
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Question Noisy Exhaust Valve

I'm working on a 1972 R-75/5 & as it warms up to operating temp the left side exhaust valve area gets noisy. The lash is fine & the rocker arm bushing & side play are good as well. I'm thinking of pulling the head to see if the exhaust seat is loose. Any ideas ?.

I also need to buy the exhaust pipe tool to remove the fin nut from the head & Beemerboneyard is out of stock. Who else sells the wrench ?.

Dave Selvig
2004 Black LT
2000 Canon Red LT



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post #2 of 3 Old Aug 18th, 2011, 7:39 pm
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Re: Noisy Exhaust Valve

There are some wrenches here and they mention Bob's as well. No Airheads in your area that you could borrow a wrench?

http://www.northwoodsairheads.com/Tools.html

I would definitely check out that valve seat.

Nick
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post #3 of 3 Old Aug 27th, 2011, 3:55 pm Thread Starter
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Re: Noisy Exhaust Valve

Quote:
Originally Posted by 05hexhead
There are some wrenches here and they mention Bob's as well. No Airheads in your area that you could borrow a wrench?

http://www.northwoodsairheads.com/Tools.html

I would definitely check out that valve seat.
Thanks for the link Nick the wrench is on the way. The pushrod tube has a small dent in it & the pushrod has a slight shiny spot where it rubs the dent. Other than that everything else checks out ok.

The valve guides & seats are in good shape & the piston pin clearance between the piston & rod bushing was .0006. I'll fix the dent & hope the noise goes away.

Dave Selvig
2004 Black LT
2000 Canon Red LT



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