Re: Another Big Twin Observation….

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bill-mcnamara

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Replies: 241
Topics: 58
#80857

To Frank; Yes I’m catching from the crankcase drain cover.
I thought about possibility water getting into the fuel in the engine, but have no idea
how or why? It’s been sitting there for almost 3 days and doesn’t seem to have settled
The smaller sample isn’t really black, more of a condensed dark blue like the oil.

To Chris; The engines are fed from separate tanks of fresh gas.
I’m planning another outing Friday afternoon, so will re-check HS under load again
and pull the plugs right after a good hot run.

To Don; Not planning a tear down at this point, and appreciate your compliments.
The plastic bottles are as Chris has mentioned, and show the recovered unburned
fuel mix scavanged from the block drain for each motor over the 2 hr run.

I did check the compression after supper, and measure 125-130 top & bottom.
I think the first step should be to get some more hours on these engines, and see if "stuff"
levels out a bit between them.Maybe add some Seafoam???
I didn’t open up these two crankcases when I went over them, because they both had good numbers, and they seemed to have had very little use before I got hold of ’em.

Thanks for the input Guys, much appreciated.

Bill.