tuna_man
Regular Contributor
Hi Guys
I noticed temp going close to offscale when idling (floating).
It was also idling a bit low, 500RPM.
As soon as I increased to 1000 RPM temp quickly droppped to normal, & operated perfect rest of day. (on the move).
Tonight I checked the check valves at top of thermostat housing, (inside elbow cooling hoses) looked perfect, balls sealing well, good spring pressure. (Ive got the old style brass tee fitting, no corrosion).
I adj the idle to 650, but still started to warm up unless I increased to 1000.
Was it the low idle or could it be another issue?
Impellor & pump new 5 yrs ago, (300hrs ago)
1988 260 Alpha1, SaltWC, 350 SBC.
I noticed temp going close to offscale when idling (floating).
It was also idling a bit low, 500RPM.
As soon as I increased to 1000 RPM temp quickly droppped to normal, & operated perfect rest of day. (on the move).
Tonight I checked the check valves at top of thermostat housing, (inside elbow cooling hoses) looked perfect, balls sealing well, good spring pressure. (Ive got the old style brass tee fitting, no corrosion).
I adj the idle to 650, but still started to warm up unless I increased to 1000.
Was it the low idle or could it be another issue?
Impellor & pump new 5 yrs ago, (300hrs ago)
1988 260 Alpha1, SaltWC, 350 SBC.