Re: [DML] Re: New member. Overheating problems

[Glenn <green95gst@xxxx>]

Thanks for the input on this. I will have to check out where the fan 
relay is. This car is an earlier car then my first one. One more 
thing I should mention is that this one came with an after-market 
turbo. Shortly after we got the car, the engine went out because of 
the turbo. Don at Delorean Motor Center had a set of JE pistons and I 
said lets put them in. Lowered the compression a little. Unless you 
own a race car, don't bother with JE pistons in a street car. Piston 
slap when cold, and they take forever to warm up. This engine has been 
a major pain for a long time. Went through almost 2 quarts of oil 
every 1000 miles. Finally the fans started failing and the car kept 
overheating. Don said he would rebuild the head, and when he had the 
engine open, noticed the piston walls were scored. The pistons were 
never mic'd before installing them. They expanded too much and were 
scraping on the sides. Don found a low milage short block and didn't 
charge me for that since he built the last engine. So I got a fairly 
new engine for the price of having the heads rebuilt. After the car 
was back on the road again, I noticed the engine temps starting to go 
up again. So back to Don, and then we noticed the fan switch was not 
coming on when the temps started getting hot. Off with a new switch 
and all was good. Three months later, no fans again. Another switch, 
and fans worked just fine.

Ok, I will have to check for air in the system at the fan switch. If I 
have the old style water pipe, where can I get an upgraded one? I will 
also check into the fanzilla. Thanks for the info.

Glenn


On Tuesday, October 14, 2003, at 04:24 PM, David Teitelbaum wrote:

> Check that you have the updated version of the pipe that the switch
> fits into, the switch should be on the BOTTOM of the pipe. The earlier
> style had the switch on top and an air bubble would get caught under
> it and then it didn't work right. Put a Fanzilla in so the switch
> isn't carring the full load of the fans. Make sure there are no
> combustion pressure leaks, if combustion gases are leaking into the
> cooling system you will constantly have to bleed the gases out. A
> leaking head gasket or cracked head can be the cause (I am assuming
> this engine was overheated to have needeed head work). You may also
> have to replace the circuit breaker for the cooling fans. It might be
> interesting to measure the current draw on the fans, they may be
> pulling too much which could damage the switch.
> David Teitelbaum
> vin 10757
>
>
>
> --- In dmcnews@xxxxxxxxxxxxxxx, Glenn <green95gst@xxxx> wrote:
> > Hi all
> > I just joined the group the other day. This is my second Delorean 
> > that
> > I have owned since 92. I've had the heads rebuilt and a low mileage
> > bottom end put in and have had this annoying problem with the cooling
> > fans not coming on when they are supposed to. Don Steger has replaced
> > the cooling sensor on the engine 3 times in the last year. It works
> > for a while then only works intermittently. Does anyone have any
> > ideas what would make it stop working? Also I have been thinking 
> > about
>
>
>
>
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