Thread: Johnson 130 hp 1997 V4 last of the loopers

Just had the bottom LH plug a bit clogged with grey oil, motor was missing while idling in the 5 knot zone, but cleared on take off. Water in the cylinder. Have owned the motor since 2000, has had nothing major done to it. Compression tests were fairly even on all 4 pots, had two opinions from two workshops, one said bottom crank shaft seals, other said head gasket, as water cannot get thru from the bottom end, they’re just air seals. Took the heads off, both right and left cylinder show a little water mixture. Here’s some photos, can anyone confirm it will only be head gaskets and anything else I should update while in doing them? Thanks

Left bottom head

Right bottom head

Gasket condition
Galleries are clean as down very little salt water