Re: 93 Yamm 115 - new impeller and thermostats now hot over 4000rpm
Hi all. Rodbolt your suspicion that I had more than the poppet going on was right (...add that to all the other times you have nailed things on here for the grateful masses matey
)
At 5500rpm and 39 miles per hour she overheats...I dont run her there normally, but wanted to see whether it was going to be a problem given the overheat problems pre-poppet cleaning...it now runs fine even at about 5000rpm. So I pulled the head covers off so I can see the water galleys in the covers and around the cylinder heads near the plugs. It has build up of salt and waxy stuff - about a 1/10 of an inch (a couple of mm) in many places - given how narrow the galleys are I reckon that might be my problem. Any thoughts on that?
In order to clean, do I just use a stiff narrow brush and scrub them out. I have Salt-X - can I use that with some water to desolve the build up. Should I spray salt-X into the galleys past the outside cylinder walls to get some into that part of the engine to try to disolve the wax...and will it hurt to stick a garden hose in there to assist that process...any thoughts on this would be gratefully received.
I was then going to get some new gaskets and stick her all back together. Whats the best goo to use for the bolts that hold the covers on - ie anti-sieze goo?
Cheers and thanks
