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I have a pair of Ford Lehman 2728T with 2500 hours. They both run smoothly at all RPMs. Neither of them smoke significantly. The port engine demonstrates power loss at all RPMs once it warms up. When cold it idles at 600 RPM and when put in gear it drops maybe 10 RPM. When at operating temp the...

I upgraded the alarm panel at the lower helm on my 1986 GB36 by replacing the dim little incandescent bulbs with LEDS…. 11mm Oznium 12 lumen. Very bright! No way you can miss it if one comes on. Also fabricated a similar panel for the upper helm. For whatever reason GB did not install alarm...

I have a 1986 GB36 Classic with twin Lehman SP225s and Newage 2.01:1 drives. I am looking to converse with any twin engine “pre-wide body” Grand Banks 36 owners with Lehman SP225s or SP185s. I am curious as to what diameter and pitch props they have and their performance. Thanks, Mike

I am looking for the “split flow return” (part# 1A413) for a Ford Lehman sp225. It is a manifold that mounts on the back of the engine joining four cooling lines and the block. I have checked with American Diesel and BOMAC. The part is not available and no longer in production. Any...