articfriends

iTrader: (1)

Have you ever had issues with pumps burning up or fluid foaming? I ran mine a whole day hard with cooler bypassed with no issues,I think this lightweight flimsy cooler is more of a liability/leak waiting to happen then anything. Smitty

happy hours

Maybe a stainless cushioned stainless loop clamp to mount cooler? Would isolate it way better from vibration. Sounds like almost all failures were caused by fatigue.

jeffswav

The one that comes with the 330's is a complete joke. It is about the size of a beer can. After I beefed up the engine I began having engine probles due to oiling. I then purchaced a EMI Oil/PS combo cooler. I think the Mags and Blue motors are a little better but the aftermarket world has much more to offer.

TWIN-SPINS

had my engine hooked up to the cpmputer the other day,,,,80degree day,,and the air temp sensor reading was 111 degrees,that was at the dock with engine hatch open 496 h.o.

smiklos@sunprint

iTrader: (1)

I would guess that is radiant temp. from the sun.
Steve

Griff

Nope, never any issues at all. I've put about 150hrs on it this way and pretty sure its been like this for about 400hrs.

Griff

I've put on almost 350 hrs without a cooler now since I've owned it and still never a hiccup.

3pointstar

I'm not in the league of most - an owner of a high performance boat - But I do have a power steering cooler on my stock 7.4 mpi. I agree that this maybe overkill especially regarding temperature. Does anyone have an opinion regarding keeping the fluid cooler to avoid foaming??-- Not thermal breakdown?

I'm in total agreement that an engine compartment can get warm but no way close to 500F-- that would be like a broiler on a stove -- and most of the plastic stuffs would melt or severely deform.

Just a question/thought

3pointstar

MILD THUNDER

iTrader: (3)

I run strictly autozone brand dexron trans fluid in my steering. Because its cheap and so am i. I ran all last year with no ps cooler. I did replace the cooler this year. Either way, never had an issue. Latham full hydraulic system.

BUP

iTrader: (9)

Just addressing the 1 st couple post back in this thread, #1. 500 F in any marine engine compartment NO way - VAPOR lock city on that one , interior components melting, blistering paint, melting of all plastic parts and so on, along with running problems and battery issues from that extreme temps.

Next mercruiser has a Service Bulletin to dealers and boat manufacturers about engine compartment temps and do want any above 178 F. If the temp become higher than 176 F when running or even after shut down, fuel and other problems can exist. Mercruiser has studied this one and I know for a fact they did many many years ago..

If I read those temps wrong at 500 F in the first couple of posts never mind my post. Carry on.