1931 Auburn Overheating

The 1931 Auburn is a new addition to our collection and since it has arrived we have been chasing an issue with the 1931 8-98 Lycoming overheating.

The last owner wanted to convert it to electronic ignition so they installed a Chrysler 2642460 distributor which as far as I can tell is out of an old  Chrysler 318 or 340 and as I looked into it the Chrysler distributor originally turns clockwise. So I started looking at the Lycoming 8-98 and the firing order has it turning counter clock wise.

I then looked at the firing order on the plug wires on the distributor as installed and when installed in the Auburn the distributor turns counter clockwise. This confirms I have a timing issue becasue rather than advancing the timing at speed it is retarding ignition since it is turning backwards.

I tool a look at the replacement distributor in our 1933 Auburn Lycoming 8-105 and I noticed it has a similar distributor but it is designed to turn counterclockwise. I am going to swap it into the 1933 to see if that solves the problem.  Unfortunately the distributor in the 1933 has no part numbers so I am struggling to find out what it is out of.

Now to track down another one to match the correct one or find an original dual point distributor.

This is the Chrysler 2642460 distributor in the 1931 Auburn designed to turn clockwise and incorrect for the Lycoming

20160628_092627This is the unknown distributor in the 1933 Auburn designed to turn counter clockwise and should work in the Lycoming20160628_090832


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