oil cooler for 3b?

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This issue is becoming less clear (and more hijacked) with every post. Going off the genuine repair manual which covers the B, 11B, 3B, 13B & 13B-T, it only shows the block with the in-block cooler, it shows no other variants, it mentions nothing about serial numbers not cover by this manual, it makes no mention at all of a block without a cooler. I am very interested to see what the block with out a cooler looks like. I can't imagine toyota casting two different blocks just to exclude an oil cooler, Prehaps these blocks without coolers are non genuine or have been manufactured at a toyota plant in north America somewhere for use on northern American models?

Anyone who can shed some light on this please speak up.
 
ok ok so there might be an oil cooler in the block, have to chek mine again but? i need an external cooler. it was getting up to 30 the other week and oil pressure was low. got a turbo setup which is heating the oil real good. you can only touch the oil feed line for a split second before you'd burn yourself. thats telling me its way to god dam hot.

But working on 5000kms and the turbo's pulling its own weight.

100$ of diesel for 1000kms not bad for an old pig that has about 500,000kms on her
 
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Oil that's to hot to touch is standard running temp, low pressure when hot doesn't necessarily mean your oil is overheating and becoming to thin. You might be trying to fix a problem that doesn't exsist.
 
that could be but on hot days the oil pressure drops by half, explain that.
 
It's not a question of "is the oil getting hot and thin?", because it is, all oil gets thinner when hot. It's a question of "is your oil getting to hot and to thin?". Without a temp reading on the oil your only guessing that the problem is your oil getting to thin. There are many possible causes of low oil pressure that won't show until the oil is at running temp, you could have excessive oil pump or bearing wear and while your oil is still at a cooler temp you are still able to maintain pressure.

In diagnosis you can't say for sure what the problem is until you can prove it and disprove all other possibilities, without proper diagnosis you only wasting time and money stabbing at the dark. So far you can only prove that your oil pressure is getting low operating in hot conditions, you haven't yet proven that the oil is getting excessively hot, you only have one symptom (low oil pressure) which could be caused by any number of things.

I am happy to help you find the root cause of the problem if you like. Your better off spending a little bit of time locating the problem than spending alot of time (and money) guessing at the solution.
 
Just for reference .. my 1HD-T in a hot day it's around 140°F max oil temp .. and usually it's around 120°F oil temp ..
 

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