Can't say it matters much to me either way. I'm more of a person to just do it now even if it is working so I won't have to do it later. I grew up working on old Mercedes diesel engines, I'm assuming this isn't going to be harder than that, but I've been wrong beforeYeah, replace the radiator and narrow down the other leak too. If it's from the timing cover, that's not a fun job, but much better than doing heads.
it being an ohv theres not the stuff like the timing chains in the sohc to do. one could do them preventstively, but i dont hesr of those often. but maybe the ohv guys know moreSomebody else with a 2nd gen can chime in here, but if the OP is pulling the timing cover, isn't there a bunch of stuff he should also do?
Is that a rust spot on the first picture? And is rust spot that has gone through the metal?So I pressure tested the system at 25 PSI (it's kinda high I know), I found three leaks.
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I don't know what this one is, I checked all above and around and there isn't a trail and it wouldn't drip for me.
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This one started at the front of the block where the water pump meets at the right side and ran down the seam to the oil pan and collected there.
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This one is leaking like a sieve under pressure.
The brand of radiator is Tong Yang (pretty sure they supply several Asian brands as well as Mopar) but their website doesn't list a part for the explorer so idk what this radiator was meant for.
Have you tested for exhaust gases in the cooling system? This would tell you if there is a head gasket issue.So I looked closely, the line of coolant I saw coming out of the water pump from the gasket wasn't the water pump, it was coming from the timing cover. I was honestly planning to replace the heads with some new cast kings heads, and also new timing parts while I have it all apart. I already ordered the new radiator though. The coolant in the radiator does have a small bit of an oily film on it which I know is a pretty good sign of a head issue.
I had TWO NAPA employees tell me the Hemi in the Ram was 4.7L and tried to sell me a PCV valve for the 4.7 to fit the Hemi.I have to add this, I went to pick up the pressure tester and the guy behind the counter told me the 4.0 OHV V6 was one of the worst and most unreliable engines Ford ever made. He then claimed to work at a shop and later on in the conversation asked me if the triton V10 was a diesel. Last time I attempt an intelligent conversation with young AutoZone employees