Home › Forum › Ask A Member › Johnson HD-25 running issues › Re: Johnson HD-25 running issues
April 21, 2017 at 8:05 pm
#56497
That’s an intriguing method. I haven’t used a TDC gauge before. Does it look for the minimum overhead piston clearance to determine TDC? I think I’m starting to get the idea. I’m thinking that without the factory timing mark, and a timing fixture, the pistons may not fire exactly 180 degrees apart, but not sure how important that is. I’d really like to hear Franks thoughts on this. Thanks Buc.
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