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#1
09-02-08, 20:47
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Here are things to check on your Chevy
While assembling a 261 cubic inch Chevy to install in my Pattern 13 C60S I was cleaning and checking the distributor I found two problems to check on your stove-bolt 6.
• I grabbed the drive gear and the bottom of the shaft and discovered that the gear would turn on the shaft several degrees. See photo below for what the shaft and pin looked like. This is the third distributor that I’ve found with this problem. One of the pins broke on a 216 the road in my C60S traveling along at 40MPH boy do stove-bolts start making strange sounds when they loose timing at speed. (see second photo) Moral of the story be sure to check the drive pin on the distributor or just replace the pin. • The second thing I discovered on this distributor was that the oil groves on the shaft where completely gummed up so be sure to clean the groves on any distributor you are installing. This can be done by disassembling the distributor completely and cleaning the shaft or by injecting degreaser (like brake cleaner) into the lower shaft oil port until it runs out bottom of the shaft. (located in the lower grove on the body of the distributor) Then re-lubricate the shaft before installing.
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Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com Last edited by Phil Waterman; 09-02-08 at 21:37. Reason: add photos 
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#2
10-02-08, 03:33
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Have you been using gear lub in the crankcase.....
... on a cold New England morning that gear lub can get very thick and stress the oil pump dizzy gear......
Amazing to see that much wear Phil... unless the gummed up oil grooves accellerated the waer on the pin. By the way there are are a few NOS early Dizzy on Ebay that are up for Buy Now........ I got an NOS Dizzy a while back from California..... What are you using as replacement pin....? are you sure the bushings are not too loose/worn...??? Bob
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Bob Carriere....B.T.B C15a Cab 11 Hammond, Ontario Canada
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#3
10-02-08, 06:58
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Details
Hi Bob
The distributor pin that broke on the road was original distributor on BEAUTY the `42 Pattern 13 C60S so it only had about 12000 miles on it. Why it broke I have no idea. As it broke on the road I used what I could find as a replacement in that case a tempered split pin from a nearby hardware store. If they had not had pins I’d have used a cut off nail. Now I carry spare pins. Strangely the whole in the shaft on that one was not egged. Normally when I replace them I use a tapered ream and tapered pin expanding flattening both ends. The other two loose gear distributors have come off high mileage engines that I was rebuilding. The latest one which also had the gummed oil path on the shaft was from an engine that had sat for probably 10 years that I know of. Though well gummed the shaft it self doesn’t seem badly worn. But now that you mention it I’ll mic the shaft and the bushings on the distributor before reassembling.
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Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com
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#4
10-02-08, 13:55
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Phil & Bob
It's as you say, a good idea to check the shaft and bushings. If the shaft is wobbly in the bushings it affects the point opening and closing ( dwell). They used that distributor up until 1962 and it was bullet proof. The one GM came out with in 1963 for the "new improved" 230 cubic inch engine was garbage. They always needed shafts and bushings. Cheers, Barry
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Every twenty minute job is one broken bolt away from a three day ordeal.
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