Drive temp????????

[Gina Marie]

After running my 45C 6v92 for the first time my oil drive temp alarm went off. When I slowed her down the alarm went away the gauge read about 190 it was not to far off the starboard engine. Any ideas what to look for. Thanks

[SKYCHENEY]

It could be a loose wire or a bad sender. If the wire is loose or broken and it looses contact, it will default to alarm.

[vegasprod]

Had a similar problem several years ago in a 40DC w/Cat 3208's. Trans temp alarm went off. When slowed down, alarm stopped. Solution was that the shift lever on the tranny was being partially blocked by a bolt head and the transmission was not fully in gear, allowing slippage and overheating. Removed obstruction and problem solved.

[Genesis]

Where's your gear cooler? Is it in the main tank or do you have the newer auxiliary setup on the suction side of the raw water system?

[Gina Marie]

Genesis I have the same boat you had I think 87 45c I think the cooler is the main tank. I also have a slight problem on the same engine with running a slight bit hotter then the starboard.

[Genesis]

Mine had separate coolers on the seawater intake lines - NOT in the main tank. I was told they did that because of overheating problems in the main tank; that the cooling capacity was not adequate.

The problem with the "auxiliary cooler" was that it was on the INTAKE side and had a habit of fouling like a madman, which led to the ENGINE overheating. Oh sure, the gear stayed nice and cool.......

Were I redesigning it I'd have that cooler on the OUTLET of the primary H/E. Still cool water by comparison to the H/E coolant (by definition) but you'd avoid the problem of trying to suck water through a restricted path.

If you've got one engine running hot fix that and the problem may go away since you're operating off the H/E tank cooling. The other alternative is to source and install a separate cooler and re-engineer the gear cooling system - which is IMHO the right thing to do, but definitely not the cheap thing!