[DML] Re: Fuel Temperature.

["Harold McElraft" <hmcelraft@xxxxxxx>]

For years I lived with the same thing on three different Ds until a 
few years ago when I pulled the fuel tank cover while replacing all 
the cooling system hoses. I discovered that the coolant lines were 
touching the fuel tank. The OEM rubber insulator had deformed and 
deteriorated, etc. I used some coolant hose, split it and slid it 
over the metal tubing as a new insulator in key places not the 
entire thing. There is still some "buzz" when the tank is low and it 
is hot outside, ac on, etc. but not the "wake up the neighborhood" 
noise that it use to be. As a matter of fact until these notes I had 
forgotten about it.

After I first did the fix a few months passed and one day I noticed 
it again. I decided to take another look at the first fix and 
discovered that I had not done a good job of securing my new 
insulator and it had turned to allow the tube to once again touch 
the fuel tank. A quick adjustment and a plastic tie have rendered 
the system quiet for now.

Harold McElraft - 3354

PS - I also have Bauerle's deflector. They are great and also keep 
the crud out of the steering rack opening behind the fans.




--- In dmcnews@xxxxxxxxxxxxxxx, Dick Ryan <deloreanbiker@xxxx> wrote:
> While I can't say that fuel temperature is a problem
> as far as vapor lock is concerned, I know that I have
> experienced an extrememly noisy fuel pump when the
> fuel gets hot.  
> 
> We all know that a fuel pump "hum" is not uncommon,
> but when the fuel gets hot, my pump "shouts".  As soon
> as I pull into a service station and fill up with cool
> fuel, the noise goes away (for a while).  Most of the
> time it takes about a half a tank before the noise
> gets unbearable.  I've even had cars next to me at the
> stoplight and they hear the noise over the fans!!
> 
> I do have the rubber "baffle" that is supposed to
> direct the air downwards away from the tank.  
> 
> Recently I have seen rather compact fuel "coolers" in
> hot rod and performance car magazines.  Has anyone
> tried one of these?
> 
> Dick Ryan
> VIN 16867
> 
> --- Marc Levy <malevy_nj@xxxx> wrote:
> 
> > 
> > Have anyone verified that Fuel Temperature is a
> > problem?  Cold fuel is more efficient, but many
> > people
> > drive their DeLoreans in hot climate with no
> > problems.
> > 
> > Many years back, there was someone selling a rubber
> > shield that blocked the hot air coming out of the
> > radiator from blowing over the fuel tank.
> > 
> > I don't remember who it was, but I have seen a few
> > installed on cars.  Looked to be a good idea,
> > although
> > I saw no data to prove it was effective.
> > 
> > 
> > --- tobyp@xxxx wrote:
> > 
> > <SNIP>
> > 
> > > felt like it was burning his skin.  Between the
> > hot
> > > air blowing on 
> > > the tank from the radiator, and the fuel being
> > > returned to the tank 
> > > from the engine compartment as part of the
> > > recirculation that goes on 
> > > continuously in the DeLorean, the fuel was heated
> > to
> > > a significant 
> > > degree (pun intended).  Here's the question for
> > the
> > <SNIP>
> > 
> > 
> > 		
> > _______________________________
> > Do you Yahoo!?
> > Express yourself with Y! Messenger! Free. Download
> > now. 
> > http://messenger.yahoo.com
> > 
> > 
> > 
> > To address comments privately to the moderating
> > team, please address:
> > moderators@xxxx
> > 
> > For more info on the list, tech articles, cars for
> > sale see www.dmcnews.com
> > 
> > To search the archives or view files, log in at
> > http://groups.yahoo.com/group/dmcnews 
> > Yahoo! Groups Links
> > 
> > 
> >     dmcnews-unsubscribe@xxxxxxxxxxxxxxx
> > 
> >  
> > 
> > 
> > 
> > 
> 
> 
> 
> 		
> __________________________________
> Do you Yahoo!?
> Yahoo! Mail is new and improved - Check it out!
> http://promotions.yahoo.com/new_mail




To address comments privately to the moderating team, please address:
moderators@xxxxxxxxxxx

For more info on the list, tech articles, cars for sale see www.dmcnews.com

To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/dmcnews/

<*> To unsubscribe from this group, send an email to:
    dmcnews-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/