140 hp OMC sea drive

fishtilubleed · Friday at 7:35 PM

Do these have thermostats? I thought they all did but nothing I can find in the parts diagrams.

racerone · Friday at 8:05 PM

Model # is ?------Most have a thermostat.

saltchuckmatt · Friday at 8:15 PM

fishtilubleed said:
Do these have thermostats? I thought they all did but nothing I can find in the parts diagrami

I made a comment and I believe I was wrong. "Edited"

fishtilubleed · Saturday at 3:51 PM

20AHRJAS

racerone · Saturday at 4:14 PM

Thermostats are found behind the cover at the top of cylinder head.----Clearly shown in parts diagram.

Juanmi · Sunday at 11:46 AM

maybe in the OMC 140 stern drive operator manual :

OMC 140 stern drive operator manual

saltchuckmatt · Sunday at 12:04 PM

Juanmi said:
maybe in the OMC 140 stern drive operator manual :

OMC 140 stern drive operator manual

That is not a sea drive 140. That's an inboard/outboard

fishtilubleed · 2026-08-17T09:05:13-0600

salt it is a sea drive and TY

saltchuckmatt · 2026-08-17T09:39:07-0600

fishtilubleed said:
salt it is a sea drive and TY

Then why the wrong info?

racerone · 2026-08-17T10:53:15-0600

The 20AHRJAS is clearly listed with the SEADRIVE line up of motors !

saltchuckmatt · 2026-08-17T11:35:32-0600

Clearly not for me.... I'll move on.

racerone · 2026-08-17T11:38:02-0600

Find it on ----Crowley marine website.

fishtilubleed · 2026-08-17T20:04:03-0600

Next little question how much clearance should there be between the lower case and the prop? what does the 3 blade thrust washer do?