Distributor end play

[fireZ]

How much end play should a 1111266 dist.have? Mine has about  .015 end play and before I install it I would like to know if this is an ok tolerance.

[L78 steve]

Its OK but you can shim it for less .

[fireZ]

Is it better to have no end play or a little bit as I have?

[69Z28-RS]

*end play* on the distributor shaft results in 'ignition timing errors'..  so as little end play as possible, without unnencessary rotational friction, is better.  I'm sure the service manual has a spec on it.. I'd tend to go towards the low end of the spec range..

[fireZ]

I will try and look in the manual to see what they recommend. Thanks

[JohnZ]

The end play spec for decades was .002"-.007", but very few were actually built that way; .010"-.015" will work just fine.

[fireZ]

Thanks John ,I have mine at 0.012 so I guess I am in the ballpark

[opelitis1]

What would be the cause of the end play "opening up" to say:  .035 - .040?
Ted

[JohnZ]

What would be the cause of the end play "opening up" to say:  .035 - .040?
Ted

Some were built that way, others open up due to wear on the shims between the top of the gear and the bottom of the housing.

[69Z28-RS]

My original distributor needs shimming properly (badly)...  I've never ran it, but would like to set it up and run it now.   Where is the best source for a 'shim kit'?   Are they generally available in parts stores as a 'kit'?

[Hatman]

Moroso kit # 26140  Summit or Jegs Should have them.

[69Z28-RS]

Thanks..  I was going to visit the Chevy Dealer, but my local one was one of the 14 Chevrolet stores owned by Bill Heard, who went into bankruptcy....

[CVKUEBER]

GM part# is 1927529.  .005thick shim   Ware chev in TX shows two on on hand 1-800-890-9273 hope this helps, Cory

[69Z28-RS]

Thanks...