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here is what I think you should do. I think you should hook a leak down tester to the cylinder with the deposit in it, and while you are pushing pressurized air into that cylinder look in the coolant...

Mine does not lose coolant. However Mine and all other local deloreans in my area will churn up bubbles when revving the engine.
Are you over heating? How much coolant are you losing?

yes, durring reving. Especially with a coolant bottle such as that. Your return is right at the water line, so its going to create a Venturi effect and churn up water and air. The original coolant...

Try this, Start the car and during the high idle, before giving it a few revs to bring it down. Go to the back and press on the throttle arm (where the adjustment screws are for the idle...

I have checked everyones delorean that I know, they all churn up bubbles in the expansion tank when you rev the engine.

have you tested with the blue fluid?

you should pressurize the cooling system and look at that spot when pressurized. You might see it if coolant is pressing in.

Hopefully not from coolant leaking into the cylinder, however it does look to be coming from the head gasket.

If you are getting foam like soapy water, you may have a contaminant that has amended the surface tension of the coolant (Like adding dish soap to water) Giving it the ability to hold bubblers of...

I removed mine without removing the fascia. Mine was REALLY on there. After trying with a breaker bar, I gave up and got this impact driver. It's low profile so it will fit in without removing the...

Just to add to this, I have yet to see a Delorean that does not bubble in the over flow, especially if you have a coolant bottle that has the return from the head right around where the water line...

Yes, the fear is that combustion gasses are pressing into the cooling system, and displacing coolant in the heads and block. Once the coolant is getting displaced by combustion gasses it has no place...

I used to think bubbles in the overflow was sure sign of a blown head gasket. I would get bubble in there if I revved the engine whilst looking in there. I did the combustion gas check, idling and...

I mean we're in the days where a front left fender is worth 4 grand. So when you see a Delorean for sale remember that the front fender comprises 4 grand of the total price!

I had an issue like this after taking the intake apart and doing a bunch of messing about in the engine. I would get spark inconsistently, but if all I did was check spark at one or two plugs it...

Jump over to this thread for the exciting conclusion!
http://dmctalk.org/showthread.php?17980-Come-so-far-to-find-this!

Over due update!
I hate reading dead end treads,
The car was not down for long, DMC FL came out and picked up my car, and with some digging we found an upper crank case, they put it all toghether...

The other worry I would have is that the re torquing is supposed to be done after one warm up cycle. The gaskets are heat set, they have magnesium in them that bonds to the mating surfaces of the...

Thanks for the thought!
I will be on site for the full day, and I will be covering the days events on video (I own a production company) Look forward to seeing all there!

He had block rot, and replaced his engine I believe.

If I put it back together and it’s not leaking there, should I bother?

Yeah, DMC Florida consulted with DMC Huston, and then said since it’s so close to being fully assembled I should put it together and see if it leaks. So maybe it will be ok as is? But they said try...

I mean, its real nice, and as you remember it, sadly I've just had a strand of really bad luck with it.
Sadly all the money I've put into it is now null and void, as it all has to be done over...

Like you said, shit happens I guess.

Yeah it held the torque, I did not use an impact.
I doubt its from a prior mechanic, the car was bought from Mike's Brother at DMC Midwest.

Thinking I could remove that head bolt, and re torque...