Auto Bleeder

[Bitsyncmaster]

I've never needed the auto bleeder and never bleed the cooling system after it's free of air. But on my Auto Train trip, I had an engine over heat condition after they pulled my car off the train. It seems the Auto Train got air in the cooling system. After I made it to the hotel (it hovered around 220 mark) it seems to have corrected itself after the engine cooled down. I guessing during it moving on and off the very steep ramp caused the problem. We will see what happens on my return trip. I'm now in Sanford with the car loaded onto the train (again top level).

I wonder if the auto bleeder would have corrected the problem. Is it just a hose off the housing nipple to the tank? Or is there an orifice in the new bleeder nipple?

[nullset]

I've never needed the auto bleeder and never bleed the cooling system after it's free of air. But on my Auto Train trip, I had an engine over heat condition after they pulled my car off the train. It seems the Auto Train got air in the cooling system. After I made it to the hotel (it hovered around 220 mark) it seems to have corrected itself after the engine cooled down. I guessing during it moving on and off the very steep ramp caused the problem. We will see what happens on my return trip. I'm now in Sanford with the car loaded onto the train (again top level).

I wonder if the auto bleeder would have corrected the problem. Is it just a hose off the housing nipple to the tank? Or is there an orifice in the new bleeder nipple?

It replaces the bleed bolt with something that's open, and then there's some hose and a valve that runs to the feed side of the coolant tank, as I understand it.

If the air is in the radiator, it won't help.

--buddy

[jawn101]

It replaces the bleed bolt with something that's open, and then there's some hose and a valve that runs to the feed side of the coolant tank, as I understand it.

If the air is in the radiator, it won't help.

--buddy

DPNW's system includes a fitting to bleed the radiator as well, I have it and it's quite nice.

Link: http://www.delorean-parts.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=DPNW&Product_Code=K1012DP-A&Category_Code=9475

[DeloSTM]

The carberator guy has a radiator auto bleeder. He showed it to me at DCS. The hose goes some place else. He says he doesn't have to do anything that it bleeds automaticly.

[tyb323]

The carberator guy has a radiator auto bleeder. He showed it to me at DCS. The hose goes some place else. He says he doesn't have to do anything that it bleeds automaticly.

It goes directly to his heater core if I remember correctly

[DeloreanJoshQ]

The auto bleeder I have goes from the fitting point near the thermostat housing and tees into the small hose that connects the overflow tank to the back of the engine/head area...

[Jonathan]

No orifice Dave, but there is a valve on the return line back to the tank that you could use to throttle the flow. As others mentioned, the engine mounted one is an AUTO bleeder, but the parts for the one up at the rad are more along the lines of a MANUAL bleeder. I never did install the front bleeder, but with the rear one in place (isolation valve fully open) I have had ZERO overheating problems.

[Bitsyncmaster]

Thanks for all the replies. I just got back home and the car had no overheating issue this time. It was loaded on the lower level of the train so I'm guessing it was the ramp on the trip down that caused the issue. I think I will make my own autobleeder since I have some leftover silicone hose. Thinking it's also time for a new radiator even that my OEM one has no leaks.

[Ron]

#7 here is your "autobleeder". (http://store.delorean.com/c-331-1-3-1-radiatorpiping.aspx)

[Spittybug]

Dave, in addition to the hose coming off the water pump, I added a little bleeder stopcock on the top hose of the radiator. A simple twist of the valve and the air comes out the top of the valve. After any draining of the cooling system I simply reach under there as the car is warming up and crack it open, let the air out, close it. Repeat a few times as the car is warming up. Works great.

[DMCMW Dave]

I added a little bleeder stopcock on the top hose of the radiator. .

I like that one. Lower probability of getting squirted in the face I'll bet.