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Any opinions on these '91 740 distributor pics? Replace seal or just O rings? 700 1991

I couldn't get to your picture,

As the resident brickboard distributor expert, any ten+ year old distributor needs the shaft seal replaced. There is a good section in the 700/900 FAQ on this, but the link to it did not work when I just tried it. Steve Ringlee should have the link fixed shortly. I'd like to thank him for all of his hard work on maintaining the 700/900 FAQ.

I would also replace the o-ring on the distributor base. The small o-ring on the tip of the shaft does not need to be replaced since it doesn't seal anything. All it does is keep the distributor shaft snug in the recess in the camshaft.
--
john






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