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A very simple mistake and yet...........

Old Marine Engine » One and Two Cylinder Gas Inboards » A very simple mistake and yet............ « Previous Next »

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peter ogborne
Posted on Monday, March 08, 2004 - 05:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

In rebuilding a small Stuart Turner R3m I made a simple mistake . Before i slipped the cylinder barrel back on the crankcase i put the gasket in place but it was around the wrong way . It effectively blocked the transfer port . No amount of cranking would get the Bas## to start. Puting the ''Thinking Cap '' I worked out what i had done ......now first crank and we are away!
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J.B. Castagnos
Posted on Monday, March 08, 2004 - 09:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I sleeved a cylinder for a friend, he picked it up and assembled it, said he could only get an occasional pop from it. I took it apart and found that he had forgot to cut the transfer port in the gasket.
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Ernie
Posted on Tuesday, March 09, 2004 - 07:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Years back I bought an engine for little or nothing that wouldn't run. Yup just cut the transfer port in the base gasket.
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Richard Day
Posted on Tuesday, March 09, 2004 - 02:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I was given a "No Good" according to the owner Detroit. set it on the shelf for several year. Wondered why it wouldn't run properly and found the piston in backward.
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andrew
Posted on Sunday, April 25, 2004 - 11:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have a Waterman - Pausin Engineering twin that is used on a firepump circa 1917 - that was sold for surplus to a farmer, in the '40s, who used it for irrigation. In the '60s a hired hand ran it on straight gas, burning the rings. It was rebuilt, but never ran right again, as it always backfired in the front cylender. It was run for a while, with the plug lead disconnected, eventually weakining the mag enough to the point it wouldn't fire. I bought it 8 years ago, fixed the mag, went to start, and found the previous owner had sand blasted the engine without covering the holes. Thank goodness it didn't start. I took it apart, to clean out the sand, and found that the front piston had been installed backwards, and the engine was piston was exhausting in to the intake port, as the piston controlled port timing. Reversing the piston and removing the sand cured the running gremlins.

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