Author Topic: Distributor end play  (Read 4727 times)

fireZ

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Distributor end play
« on: November 09, 2008, 05:47:11 PM »
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.
1968 Z28 LA Built
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L78 steve

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Re: Distributor end play
« Reply #1 on: November 10, 2008, 03:33:10 AM »
Its OK but you can shim it for less .
69 Z/28 Dover White X33,ZL2,PS,M20,Std.int.04C
67 SS/RS Mt. Green 1W,2LGSR,3SL,4K,5BY,07C
70 Nova L78 Blk. Cherry,Sandalwood,M21,02B

fireZ

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Re: Distributor end play
« Reply #2 on: November 10, 2008, 01:33:47 PM »
Is it better to have no end play or a little bit as I have?
1968 Z28 LA Built
LIC # RPO Z28

69Z28-RS

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Re: Distributor end play
« Reply #3 on: November 10, 2008, 09:48:52 PM »
*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..
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

fireZ

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Re: Distributor end play
« Reply #4 on: November 11, 2008, 02:03:55 PM »
I will try and look in the manual to see what they recommend. Thanks
1968 Z28 LA Built
LIC # RPO Z28

JohnZ

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Re: Distributor end play
« Reply #5 on: November 11, 2008, 03:18:20 PM »
The end play spec for decades was .002"-.007", but very few were actually built that way; .010"-.015" will work just fine.
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fireZ

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Re: Distributor end play
« Reply #6 on: November 11, 2008, 05:12:42 PM »
Thanks John ,I have mine at 0.012 so I guess I am in the ballpark
1968 Z28 LA Built
LIC # RPO Z28

opelitis1

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Re: Distributor end play
« Reply #7 on: November 11, 2008, 07:29:51 PM »
What would be the cause of the end play "opening up" to say:  .035 - .040?
Ted

JohnZ

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Re: Distributor end play
« Reply #8 on: November 12, 2008, 04:36:49 PM »
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.
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Fathom Green
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69Z28-RS

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Re: Distributor end play
« Reply #9 on: December 15, 2008, 07:09:47 PM »
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'?
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

Hatman

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Re: Distributor end play
« Reply #10 on: December 15, 2008, 07:56:07 PM »
Moroso kit # 26140  Summit or Jegs Should have them.

69Z28-RS

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Re: Distributor end play
« Reply #11 on: December 19, 2008, 08:35:54 PM »
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....
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

CVKUEBER

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Re: Distributor end play
« Reply #12 on: December 19, 2008, 10:29:43 PM »
GM part# is 1927529.  .005thick shim   Ware chev in TX shows two on on hand 1-800-890-9273 hope this helps, Cory
GM parts-tech. Polar Chevrolet White Bear Lake, Mn

69Z28-RS

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Re: Distributor end play
« Reply #13 on: December 22, 2008, 11:20:56 PM »
Thanks...
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan