My friend drove her zj 20 miles with a blown coolant hose, the engine was knocking bad then wouldn't start after stopped. I put some oil down each cylinder to try and help the rings. You can hear theres no back pressure but I did a compression test anyway and it only pops up to 30...

So my only question really, is it possible its the head gasket? Or the piston rings are fried and its time for another engine.

thanks

 

Blown engine.

 

Please list the compression on ALL SIX cylinders. Tough to tell by your description.

 

front to back 20 30 30 50 50 60

i think its done

 

I hate to say it but i think your friend had what he had coming to him thinking he could drive with out adding any coolant. Why would anyone in there right mind try to drive any vehicle without any coolant. I hate to say it but I think it is time to buy a new engine!!!

 

I think you right.

 

I'm a hopeless optimist, maybe to a fault. If I followed with a wet compression test, and the numbers didn't come up too much, I might reason that a bunch of exhaust valves gave it up. I doubt you will hurt it much by pulling the head, checking the bores for scoring.

Knocking Eh? Pistons can, and do fall apart.

I had a girlfriend melt a Vega engine with 161,000 miles on it over a blown heater hose. (car had 206K)(their 3rd, sleeved design with added cooling passages was a great engine! Too late though.)

 

The key word is HER.

 

It's

 

I wish there was a "Like" button on here.

 

x3

 

I got lucky, my old lady drove my xj when it still had death wobble. Long story short, she doesn't ever want to drive it.. .

 

thats great, laughed



yea thats what I was gonna say, not quite sure what she was thinking, $500 lesson though now she knows and is just lucky I can put an engine in and not even charge.

driving a lifted jeep being cool and looks make up for her mistakes I guess lol

 

I hope you get more than a look, brother.

Esp if your doing a motor swap for her.

 

I think you're headed to the friendzone buddy, sorry to break the news to you.