Intake leaking coolant

[Bigbearzuke]

I was wondering if this is a regular occurrence. I have a '92 D 4g64 and replaced the motor in it because it was using coolant at an alarming rate. About a month after I put the new to me motor in, I split the rad causing what I thought was a head gasket to blow. Walked away from the truck for a year and finally decided to fix the head gasket 'cause I missed driving her. Replaced the gasket, new timing belts, tensioners (previous owner of the motor butchered the front end replacing the water pump) etc. Fired her up and she's still blowing white as bad as before. I haven't done a comp test but I suspect the Intake gasket again.no physical signs of cracks in the head. It looks like the gasket is quite thin at the water passage and the previous motor "sucked" the gasket into the #3 intake. This is the same cyl the new motor was wet. I was wondering if anyone else has had this experience?

[4doorciv]

You said you bought a new engine. How much of the old engine was used? I know more about the 4g64 in an eclipse then I do the mighty max. I know on the eclipse, it has a oil cooler on the oil filter housing that has engine coolant flowing through it. I would start with the basic compression test, then move to a cylinder leakdown test. I don't know how much pressurizing the radiator would do since the leak is internal. Are you using felpro gaskets?

[Bigbearzuke]

Ok so I finally was able to do a comp test and it's "ok". Cyl's 1-4 118, 108, 110, 100. I'm leaning towards the intake gasket. No leakdown test yet. The motor was a straight swap from the donar truck into mine. Nothing was touched on it. Sold my DSM back in '02 lol. I think I'm gonna take it for a burn down the gravel roads and see if it'll clear. If that doesn't work I'm pulling the intake and see. It'll give me an excuse to powder coat it lol

[camoit]

Ya it's in the intake system or that warm water crap for the carb.

[CheapBastard]

Ya it's in the intake system or that warm water crap for the carb.

dont have a carb, you betta stick wit your 4.3 and leave da mitsu's to da professinals

[pennyman1]

No carb, but it does have a heated plenum at the bottom of the manifold for emissions. You need a lot more posts before you can harass people on here

[LSR Mike]

Actually it's the base of the TPS where the coolant passes thru. you can see the spigots here.

[4doorciv]

Bypassing thoughs is doable but may have cold start idling issues. Thanks mike for the pictures.