Miata head gasket

[Bookem]

Thanks guys, sometimes I fear the unknown, and I have never had an ohc engine apart that far but done plenty of other pushrod type engines, again thanks for he input

[MisterCMK]

Have you done a compression test on the car to see if it is indeed a headgasket?

[weshole]

MisterCMK wrote:
Have you done a compression test on the car to see if it is indeed a headgasket?

A compression test isnt a failsafe way to detect a blown headgasket.

[weshole]

which also leads me to wondering what makes you think it is blown? Not a common problem in the Miata 1.6 or 1.8.

[MisterCMK]

weshole wrote:
A compression test isnt a failsafe way to detect a blown headgasket.

yes, I know that, but its a good indicator of one.

[Bookem]

I mentioned to the guy we should do a compression test, but it is using coolant pretty fast(half a gallon every hundred miles or so) it's not leaking externally and it was overheated for an extended period of time, plus I like tearing stuff apart....lol I just got done replacing a head off of a dodge minivan due to a horrible engineering defect, and dsm is off the hook on this one it wasn't the 3.0 it was the 3.8 which is also not mopar, it is made by cummins which I thought was odd since it wasn't a diesel, but their plant in mexico makes gas engines

[24valvenotak]

is there a coolant passage in the intake mani and throttle body wes?

[weshole]

92BlackTT wrote:
is there a coolant passage in the intake mani and throttle body wes?

Throttle body?.......On my 1.6 there is. Notsure on the 1.8 though. I would assume so.

[weshole]

I take that back. No there isn't one on either engine.

[Bookem]

Just curious if anyone has a head laying around for that miata? 94 1.8

[weshole]

Bookem wrote:
Just curious if anyone has a head laying around for that miata? 94 1.8

Talk to Nick at Straightline specialties. He did have one. Not sure if he still does though.

[Bookem]

Alrighty, thanks Wes, anyone know how late they are open tonight?