RTH small coolant leak from engine passenger side

[Desert Dino]

Small coolant leak from an engine passenger side beaind the front exhaust manifold

I noticed this new red wetness under the rig

I was thinking where did I get a hydraulic fluid leak?? It took me time to understand it is T red coolant.

I looked under the spot and I saw a small trail of coolant.

Any ideas? I checked all hoses and everything is dry and secured I just finished a total cooling system overhaul I can't find a leak

Were this could come from?? Engine works like a charm ?

 

[brianh699]

Oil cooler leak, this thread has some good info and pics
Coolant leak under exhaust manifold!

 

[Tools R Us]

Looks like a pretty good coolant trail, maybe a good idea to follow it to where it starts? A cooling system pressure tester can be helpful.

 

[Desert Dino]

Looks like a pretty good coolant trail, maybe a good idea to follow it to where it starts? A cooling system pressure tester can be helpful.

You are so right

So I drove to my friend the farmer, he has a small corner with a car lift and all the tools in the world and OCD he worked on Isuzu and I worked on his nerves by not putting back to his according to his standards

While the engine cooled down we drank Arab coffee, smoked and I was crying like a baby that my engine is tosted

I removed the exhaust heat shield and pressurized the cooling system and could see sweating droplets from pin hole on the oil cooler cover

@brianh699 has a bingo congratulations and thank you

 

[Desert Dino]

Oil cooler leak, this thread has some good info and pics
Coolant leak under exhaust manifold!

I am going to order all the necessary parts to overhaul the oil cooler

In the link above @450LX has a picture of the engine wall after removal of all the parts with a cap I marked I can find any data on this metal cap

Is this replaceable? Part number?

 

[ppc]

I believe that is a freeze plug.

 

[450LX]

Yeah that's a freeze plug. You might be able to find one from a machine shop. Probably just need to measure it and order one from anywhere. I don't know how often they leak, if ever. You might want to just leave it alone if it's not leaking.

 

[Desert Dino]

TNX everyone there was a post on the subject in MUD Freeze plug size, 94', 1FZ-FE

But the pics with the part number of the big plugs (50 mm) vanished so here they are

Large one X 9
Smaller one X 2