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Search: Posts Made By: larry@coyotenet
Showing results 1 to 6 of 6
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Forum: Gas Engines
12-09-2020, 07:54 AM
Replies: 640
Views: 253,003
Posted By larry@coyotenet

yes, but I don't know what he does or if it had...

yes, but I don't know what he does or if it had anything to do with failure.
Larry
Forum: Gas Engines
12-08-2020, 10:10 AM
Replies: 640
Views: 253,003
Posted By larry@coyotenet

I agree, don't know what brand of oil he used but...

I agree, don't know what brand of oil he used but he was using suggested ratio. This is one of the new series 90's with the improvements. I just don't like running a gas engine with plain bearings or...
Forum: Gas Engines
12-08-2020, 09:56 AM
Replies: 640
Views: 253,003
Posted By larry@coyotenet

oil was drained before taking picture, but I tend...

oil was drained before taking picture, but I tend to think 15 to 1 with no bushings or bearings is too high, 10 would be better, but messy. I went back and looked at crank to make sure the crank pin...
Forum: Gas Engines
12-08-2020, 08:46 AM
Replies: 640
Views: 253,003
Posted By larry@coyotenet

I think he was using the prop size suggested in...

I think he was using the prop size suggested in the engine manual, rpm on ground was 5200 or 5500. I did not look at the tach. Oil was 15 to 1, failure was one of the slave rods galled the master rod...
Forum: Gas Engines
12-08-2020, 08:11 AM
Replies: 640
Views: 253,003
Posted By larry@coyotenet

Here is a picture of one of our members G90 after...

Here is a picture of one of our members G90 after the first, short, flight. Self explanatory
...
Forum: Gas Engines
09-06-2020, 06:55 AM
Replies: 640
Views: 253,003
Posted By larry@coyotenet

Had one of our warbird guy's new 90 break a rod 6...

Had one of our warbird guy's new 90 break a rod 6 min into first flight, bottom line is poor design.
Showing results 1 to 6 of 6


 
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