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Timing chain - how loose is too loose?

Posted By Greg D 15 Years Ago
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Greg D
Posted 15 Years Ago
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Opened my 64's 292 basically for new seals & gaskets - it ran good but leaked in alot of places.

Pulled the timing cover today.

The chain & gears don't look too worn but I have about 1/4" of flex in the chain.

Is this too much or can I leave it in there?

Thanks

1964 F 100 LWB Roller 5.0 & T-5

2001 Jeep Cherokee XJ

2009 Harley FXSTB Night Train



"I still have a Y block - it's just not in anything yet."
Teros292
Posted 15 Years Ago
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Shop manual says that if the slack exceeds 1/2" then replace timing chain.


Tero from Nurmijarvi, Finland
56 Country Sedan, 61 F-100, 61 F-600, 55 F-620, 52 Mercury

PF Arcand
Posted 15 Years Ago
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On timing chain slack. Does it matter when checking it, whether it's on the tension or slack side of the chain?

Paul
Ted
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PF Arcand (7/4/2010)
On timing chain slack. Does it matter when checking it, whether it's on the tension or slack side of the chain?
Yes.  You always check the cam timing while rotating the engine in the direction it normally turns (CW when looking from the front).  This insures that the camshaft via the timing chain is preloaded or tensioned in the same direction as when the engine is running.

Lorena, Texas (South of Waco)


Greg D
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Straight edge on the chain over the sprockets, push with a screwdriver - I have about 3/16"?

1964 F 100 LWB Roller 5.0 & T-5

2001 Jeep Cherokee XJ

2009 Harley FXSTB Night Train



"I still have a Y block - it's just not in anything yet."


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