You might even try running with no tstat.

Wannabe

I pulled all the hoses back flushed everything, didn't get much of anything. The oil cooler is very clean, I can eye ball right thru all the tubes. Pull the Tstat housing and it and the Tstat (its was a 140) were pretty corroded and gunked up. So I cleaned everything up. Ordered a new Tstat.

Then tested the old one after I cleaned it up (wish I woundn't have). It dropped the string at 147 degrees but didn't get wide open till 175 degrees. So wondering if it was performing worse before I cleaned it.

Anyway I also ordered a new plastic raw water pump housing. If I get to Powell and it is still running hot I'll swap out the pump and see what happens.

Another question for you all is. At the top of the Tstat housing at the tee that divides the water that goes to the headers there is a threaded rod with springs and balls that limits flow of water to the headers. Are these a good thing? Is everyone using them? Seems like you don't need that restriction.

Thanks again for all the ideas. GAZ

Do you have a power steering cooler also, and if so - did you check it? I only saw reference to engine oil cooler.

Yea, I do have a P/S cooler and I did flush it. But not possible to sight thru it like I can the oil cooler. Water flows thru it fine.

sounds like the new t-stat will solve your problems

Those springs and balls are for an alpha application to keep a little water pressure in the block. Bravo rwp's pump enough water that they aren't necessary

OK, Great I'm going to get rid of them then. I need to move as much water as I can. Thanks!

If you changed the helmet I would look at the intake hose to make sure you did not put a twist in it installing the plastic retainer. Thats an easy visual check. I've seen this happen a few times and the result is usually like you describe with high temps.

read 1st post here ....hose may look perfect till you pull hose bib

http://www.offshoreonly.com/forums/g...ml#post3905332

Sorry to hear about your problems, lots of good advice on hear already. Thanks for the updates also.

BUT.....Where did I miss the thread where you updated us on buying a NEW DRIVE! Hope you love it, and let us know how much!