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overheating mystery

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the ea81s are hell to surface block is very hard to remove the studs but get a realy good surface on them

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  • a bad intake can ingest coolant if you are smelling it out the tail pipe. It will simulate a bad HG but without loss of compression or coolant in the oil.

  • scoobiedubie
    scoobiedubie

    Loose cylinder head bolts will cause overheating.  Look on the underside of the radiator cap for any kind of deposit.  Look in the overflow bottom for the same deposit.  The deposit is from the cylind

  • I would swap in another T-stat, just cause.   It could be cause of your issue.

the ea81s are hell to surface block is very hard to remove the studs but get a realy good surface on them

I know. I just had my block decked earlier this year :P

It took a 500ft lb impact to get a couple out, and that was with a torch and deep creep.

 

Twitch

  • 1 month later...
  • Author

I have an update about this now. I removed the thermostat around the end of August, just in time for several days of cloud/rain. Since then it's been hot, cold, sunny, cloudy, and...floody. Through it all, the motor temp has stayed happy. Now for a new thermostat, I guess???

The only real problem I've had is in stop and go traffic on sunny days, the single (original) electric fan doesn't quite do it, and there is no clutch fan with this motor. I did pick up a pair of fans from a land-rover down at the junkyard, so hopefully that will help. Gotta install them, and maybe find a lower temp switch for the second fan. I think TheLoyale had a good post about re-wiring the electric fan with a lower temp switch.

 

The Land Rover fans are because they were slim and the right diameter. By my tape measure they should just fit between the grill and the radiator, leaving the motor side of the radiator empty and open. I'll report back when I have them in place.

They sell a addjustabble temp switch for fan realys but the stock realys should run those fans

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