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66 500cc triumph nor enough thread on adjusters to #648570
04/13/16 8:05 pm
04/13/16 8:05 pm
Joined: Oct 2006
Posts: 177
albion New York
C
charlie akey Offline OP
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charlie akey  Offline OP
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C

Joined: Oct 2006
Posts: 177
albion New York
valve adjuster wont go in far enough .to much play . cam look ok push rods length ok new adj pins and nuts .Charlie

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Re: 66 500cc triumph nor enough thread on adjusters to [Re: charlie akey] #648571
04/13/16 8:08 pm
04/13/16 8:08 pm
Joined: Mar 2005
Posts: 10,251
Boston, Massachusetts
J
John Healy Offline

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John Healy  Offline

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J

Joined: Mar 2005
Posts: 10,251
Boston, Massachusetts
Do you have the proper head gasket for the year bike. The late 500 uses a very thin head gasket. If you you use the earlier thin one you can have this problem.


Re: 66 500cc triumph nor enough thread on adjusters to [Re: John Healy] #648591
04/13/16 10:45 pm
04/13/16 10:45 pm
Joined: Oct 2006
Posts: 177
albion New York
C
charlie akey Offline OP
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charlie akey  Offline OP
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Joined: Oct 2006
Posts: 177
albion New York
will check . came in gasket for that year . lot more gap in adjustment

.030 or more

Last edited by charlie akey; 04/13/16 10:47 pm.
Re: 66 500cc triumph nor enough thread on adjusters to [Re: charlie akey] #648595
04/13/16 11:50 pm
04/13/16 11:50 pm
Joined: Apr 2016
Posts: 8
Montreal, Qc
R
rusjack Offline
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rusjack  Offline
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R

Joined: Apr 2016
Posts: 8
Montreal, Qc
I had the same thing. Same pushrods used in the same position before I did a top end job, so I knew something was wrong.

Make sure the pushrods are seated properly in the cam follower (use a lot of grease to feel them stick) and use a tool (zip tie, popsicle stick or something) to make sure the rockers sit exactly in the pushrods. I thought I was okay about 3 times before I got it right.

I repeatedly had three out of four valves adjust properly and the fourth be too loose. Best to pull the rocket box up a little bit and try to re-set the pushrods.


Last edited by rusjack; 04/13/16 11:51 pm.
Re: 66 500cc triumph nor enough thread on adjusters to [Re: charlie akey] #648605
04/14/16 2:31 am
04/14/16 2:31 am
Joined: Feb 2006
Posts: 712
Qld, Aust and Otago,NZ
G
Ginge Offline
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Ginge  Offline
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G

Joined: Feb 2006
Posts: 712
Qld, Aust and Otago,NZ
What's the big picture Charlie?

Is this a new head, new valves etc. or is it just new adjusters?

Thinking the valve stems might be hanging in the guides or maybe the wrong length.


Ginge
Re: 66 500cc triumph nor enough thread on adjusters to [Re: Ginge] #648614
04/14/16 5:42 am
04/14/16 5:42 am
Joined: Oct 2006
Posts: 177
albion New York
C
charlie akey Offline OP
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charlie akey  Offline OP
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Joined: Oct 2006
Posts: 177
albion New York
Hi used head . valve may be the problem . will check that . push rod open and close valve ok . don't have much information on engine thanks Charlie

Re: 66 500cc triumph nor enough thread on adjusters to [Re: charlie akey] #648826
04/16/16 3:43 am
04/16/16 3:43 am
Joined: Apr 2002
Posts: 716
Out There!
N
Nick Offline
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Nick  Offline
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N

Joined: Apr 2002
Posts: 716
Out There!
Measure valve heights from spring cup to top of valve stem, they should all be about the same.

Most likely a pushrod came unseated.


When people who should have known better cautioned me about the dangers of motorcycle racing, I always told them that a fear of death is nothing more than a fear of life in disguise.

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