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  #1  
Old 14th September 2018
hdrider98ci's Avatar
hdrider98ci hdrider98ci is offline
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Default Need some help chasing a tick

I am working on a 1988 1200 it develops a intermittent tick after bike is up to temp.
I replaced the lifters,rocker arms and shafts. There is no apparent damage visually.
Took oil pressure readings with engine hot it was with in hd specs, but when you take it out for test ride it starts to tick, then it goes away and comes back.
Also checked the relief valve at the filter it was ok.
Thanks for the help.
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  #2  
Old 15th September 2018
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Toejam503 Toejam503 is offline
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My first thought would be to adjust the primary chain, noise can travel in funny ways.
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  #3  
Old 15th September 2018
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Quote:
Originally Posted by hdrider98ci View Post
I am working on a 1988 1200 it develops a intermittent tick after bike is up to temp.
I replaced the lifters,rocker arms and shafts. There is no apparent damage visually.
Took oil pressure readings with engine hot it was with in hd specs, but when you take it out for test ride it starts to tick, then it goes away and comes back.
Also checked the relief valve at the filter it was ok.
Thanks for the help.
Change your oil viscosity-- it doesn't really matter which way. If it gets worse,go the other way. Older motors tend to get sensitive to oil viscosity. Its a cheap and easy fix, try this first, before you try the expensive crap.
Good Luck,
Joe
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  #4  
Old 29th September 2018
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hdrider98ci hdrider98ci is offline
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Default

Located the tick , it was a valve seat that was coming loose !
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  #5  
Old 17th October 2018
95sporty1200 95sporty1200 is offline
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Default

Any chance at hearing how you found that?



Quote:
Originally Posted by hdrider98ci View Post
Located the tick , it was a valve seat that was coming loose !
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  #6  
Old 17th October 2018
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Took the heads off to put a 1250 kit in , had the heads redone and when they went to install the new valve guides (they heated the head to 300 deg ) the seat fell out.
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  #7  
Old 18th October 2018
95sporty1200 95sporty1200 is offline
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Default

Wow. SO crazy. Thanks for the info!


Quote:
Originally Posted by hdrider98ci View Post
Took the heads off to put a 1250 kit in , had the heads redone and when they went to install the new valve guides (they heated the head to 300 deg ) the seat fell out.
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  #8  
Old 18th October 2018
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Consider yourself lucky they found it before it fell out!
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