TR4nut
Yoda
Offline
I'm still struggling with temp issues in my 3A - especially with current weather in Houston. I am suspicious that I don't have the best water pump in place - right now its one of those multivane new design ones (sorry don't know if its 5 or 6 vane at the moment.
At highway speeds I've noticed that I actually run hotter at higher rpms - the engine will drop in temp if I drop from say 3000-3500 rpm to 2500-3000. Can't think of a reason for that other than potential pump cavitation at the higher revs.
At idling speeds the engine eventually will overheat, especially now in the summer. Reading through past information from other owners I think it may be the rotor design, not having as good of clearances set up with the main pump body.
Bottom line I'd like to try a brass impeller pump - at one time a rebuilder on ebay was offering rebuilt original pumps, zerk fittings and all. A little pricey so I didn't bite - but now I'm interested. Unfortunately I don't see them on ebay any more - anyone happen to know who was rebuilding those pumps and if they still might be available?
Thanks
Randy
At highway speeds I've noticed that I actually run hotter at higher rpms - the engine will drop in temp if I drop from say 3000-3500 rpm to 2500-3000. Can't think of a reason for that other than potential pump cavitation at the higher revs.
At idling speeds the engine eventually will overheat, especially now in the summer. Reading through past information from other owners I think it may be the rotor design, not having as good of clearances set up with the main pump body.
Bottom line I'd like to try a brass impeller pump - at one time a rebuilder on ebay was offering rebuilt original pumps, zerk fittings and all. A little pricey so I didn't bite - but now I'm interested. Unfortunately I don't see them on ebay any more - anyone happen to know who was rebuilding those pumps and if they still might be available?
Thanks
Randy