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This may sound weird but....

G

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...the timing chain does not seem to follow what I thought would be a sequence, ie, the crank sprocket should turn twice for every turn of the cam sprocket, but the chain always jumps forward a few teeth on each rotation.

My life has narrowed down to watching cam sprockets.
 

2wrench

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Problems with the teeth? I say pull 'em.

Sorry. Wish I had more to offer than a chuckle.
A stretch, at that.

Lord give us patience.
 

Banjo

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The only marks that you need to watch are the gears. the chain itsself is not "timed" to anything. If you count the links of the chain and the teeth of the larger gear, you'll likley come up with an odd number (the chain is not exactly 2 times as long as the diameter of the gear) thus causing a marked link on the chain to be in a different location on every rotation.
As long as the timing gears line up every second rotation you're fine
 

Brosky

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I agree with Banjo. We're all getting TR6 rebuild paranoia.
 

Brosky

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I had to read it twice to get it clearly too. Then I remembered a "trick" test question from GM back in the 60's that asked where you should mark the CHAIN when setting up the valve timing.

Results if chain is marked are as Banjo states.

G'nite boys! It stopped raining and I'm hitting the links early tomorrow. No car yet, so I might as well play golf....
 

DrEntropy

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TR6BILL said:
...the timing chain does not seem to follow what I thought would be a sequence, ie, the crank sprocket should turn twice for every turn of the cam sprocket, but the chain always jumps forward a few teeth on each rotation.

My life has narrowed down to watching cam sprockets.

ummmm... if you run thru eight rotations, is the chain master link back into the same place in relation to the sprockets as when you started? :devilgrin:
 
OP
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RonMacPherson

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What Doc says,

The others are telling you true, observe the marks on the sprockets, not the chain.
If you are curious about chain stretch do the old motorcycle chain test. At the largest area of the sprocket(without the tensioner) see if you can pull the chain away from the sprocket(lifting it off the teeth). The ol' rule of thumb was if you can lift it off 1/2 tooth, replace it.

That also applies to motors in cars with chains, also be checking for sharpness of teeth on the gears. If they are pointy and sharp)like a dentists probe) time to replace the gears also.
 

Brosky

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<div class="ubbcode-block"><div class="ubbcode-header">Quote:]So the TR6 does double duty as a golf cart?[/QUOTE]

Alan,

You of all people should know what does and doesn't fit in a TR6 and golf clubs are not on the "fit" list.

Besides, I'd have to push it around the course in it's current condition.
 
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Vertical in the front seat :wink:

I take it you are back from the links...
 

Brosky

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Back and frozen at 12:30. And we had the better part of the day. Very cold, damp and windy.
 
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