why is my m42 still over heating?

[mo diesil]

also have a new theory what if the v belt for the alt / water pump is on to lose or tight? would this cause similar problems how much slack is there on your guy's belts?

[Nairb]

I've been air locked.

I generally follow the same instructions as these guys, but I reverse fill the upper radiator hose. I fill the upper hose with coolant (which fills the head directly) until the hose itself is almost full, then attach the hose to the radiator. Then I'll run the car, and "massage" the lower radiator hose. You should be able to hear the coolant squirting from the upper hose into the radiator. The lower hose should remain cool until the thermostat opens and circulates the hot coolant.. then you should check the radiator and fill the reservoir.

I've done this like 3 times in the last 2 months trying to find a coolant leak, no problems. It was coming from my thermostat housing.

[dkbmxer002]

heater on hot and fan on high, i didn't raise the front and didn't have issues. and i bled it with the car on if i remember right and had no issues...

[mo diesil]

maybe im getting a air lock this might be a dumb question but when you guys bleed the system
is the car on or off?
rasie the front?
heater on hot and fan on high?
let me know please im getting very aggravated

[mo diesil]

so i had the heat working drove the can was fine heat working really well parked went to drive it a couple hours later heat still work then stopped working then a couple miles down the its doing the same thing no heat and im freezing my ass off in this 5 * new england weather

[mo diesil]

ok so heres the deal had the heat working car ran great then parked it went to drive it and heat stopped working shortly into driveing and couple miles later its doing the same thing and im freezing my ass off in this 5* new england weather

[mo diesil]

ok so heres the deal had the heat working car ran great then parked it went to drive it and heat stopped working shortly into driveing and couple miles later its doing the same thing and im freezing my ass off in this 58 new england weather

[mo diesil]

before you did all this did you take a temp measurement with any other gauge other than the stock one?

Yea ii put a thermonotor in the expansion take it was around 160

[dkbmxer002]

before you did all this did you take a temp measurement with any other gauge other than the stock one?

[immajackuup]

tighten up the nut on back of cluster,used to have this problem.

[mo diesil]

So yesterday I checked the heatercore coolant was circulating through it, still does the same thing actuly when the gauge read 3/4 I took the cap off and put a thermo inthere it. Only read a bit over 140 "degrees. Pulled the rad and water pump water pump was a metal impellar item and did not appear defective
Im starting to think the cluster is faulty. And will pull that tomarrow and mess with the wiring And grounds back there And if that doesn't work I'm prob going to put one of my spare motors in it m52 or small block chevy

[mo diesil]

So yesterday I checked the heatercore coolant was circulating through it, still does the same thing actuly when the gauge read 3/4 I took the cap off and put a thermo inthere it. Only read a bit over 140 "degrees. Pulled the rad and water pump water pump was a metal impellar item and did not appear defective
Im starting to think the cluster is faulty. And will pull that tomarrow and mess with the wiring And grounds back there And if that doesn't work I'm prob going to put one of my spare motors in it m52 or small block chevy

[mo diesil]

i for got to mention i crashe a day or so before this started, hit a really big snow bank ohh and right after the belt for the alt and water pump broke, luckily i was not even a 1/8 mile from home

[mo diesil]

so im still up in the air on what to do im thinking of doing the water pu,p just for the hell of it, will it solve my problem i dont know but it could help
im almost at the point of bypassing the core and seeing what it does.

[Ryann]

i completely deleted mine. no issues to report

San Diego fucker!