SB 2276R1 is the bulletin you want ('94 bulletin I think, as noted). The water pump kit (432955) comes with the bulletin and new pressure relief springs. If you get the bulletin, you will make life better for a lot of listers if you scan it and post it. The only other copy of it I know of here has been lost to the recent photo bucket third party nonsense (along with lord knows how many other archived gems).
I've squirreled away a related thread, which may be of interest:
http://forums.iboats.com/forum/engin...re-gauge-issue
In particular, there is a post included from the late Dhadley:
"February 13th, 2006, 03:39 PM
Re: 1992 Evin 90hp Water Pressure gauge Issue
Yep, we use a plastic T (E/J #337594) which is just like the plastic elbow already in your motor. From that elbow the hose goes up & over the starboard side of the block then down to the fitting in the pan.We tap into the water jacket at the highest point of the block, right above #1 cylinder. On a crossflow theres a flat area thats easy to use. We go into the block -- not the head. The hose goes right over that area anyway. Once the T is there we just cut the hose, put one end on each side of the T and youre done.Because of the basic design of the water passages air can be trapped up there. The T gives the air a way to escape. You dont lose any water because the hose is only so big. The pressure remains the same. The only difference you'll see is that on initial start up the water may "spit" for a few seconds then become a steady stream. The "spitting" is the air coming out."
I find this interesting because one option related to the tell tale issue had been to loop the tell tale line from the incoming port on the lower left side, up over the block to an outlet on the lower right side (factory installations too, as I understand it). The discussion suggests a tap in that line on top of the head, releasing air trapped in the water passage (and potentially blocking movement of cooling water, which was the original problem involving the tell tale location).
A number of listers (Flyingscott, Racerone) are well-versed on this issue, and Bosunsmate has done it on his two-cylinder 50 with good success, as I recall. There are undoubtedly other sources as well.
If anyone has a copy of the bulletin, posting it will make you a hero.
