[Vwdiesel] [xjlist] Engine Questions

Wed Aug 27 10:14:54 PDT 2008

Oh and an ironic thing:

This engine has the exact same injection pump my 1989 VW Jetta had, even
though that was a 1.6 NA and this is a 2.1 TD

On Wed, Aug 27, 2008 at 12:54 PM, Stephen Kraus <ub3ratl4sf00 at gmail.com>wrote:

>  This one does not have a lift pump
>
> Oh and for those wondering it is a 2.1l Renault Turbo Diesel, finding the
> manual in english is hard as hell.
>
> I suspect it is like most of you have said its probably air in the lines, I
> guess I will just try re-bleeding the injector lines. The thing is, the
> engine will run longer if I give it more fuel, perhaps I should try a lift
> pump
>
>
>
> On Tue, Aug 26, 2008 at 11:59 PM, ernest breakfield <
> ernestb at backyardengineering.org> wrote:
>
>>   hi Jim!
>>
>> i believe you're probably right for most diesels, but i don't think
>> my old Mercedes 617.952 has a lift pump,...
>>
>> cheers!
>> e
>>
>>
>> Jim wrote:
>> >
>> > Diesels have 2 fuel pumps- the injector pump which times and meters the
>> > fuel delivery, which the injector lines come out of; and the lift pump,
>> > which is a high volume, low pressure pump to feed the fuel to the
>> > injection pump. The lift pump is usually mechanical on older diesels,
>> > but could be electric. Usually its a mechanical pump mounted to the side
>> > of the block somewhere. The fuel feeds from the tank to the engine, in
>> > through the lift pump, then through the fuel filter, then to the
>> > injection pump.
>> >
>> > As for the turbo, a diesel will run just fine without the turbo,
>> > especially at idle. It just won't have the power, and like Neal said,
>> > will run rich. This will be seen by black smoke out the exhaust. You
>> > also don't want to drive like this, because the exhaust temps can get
>> > very high...you don't want to melt a piston.
>> >
>> > If you just assembled the engine, did you bleed the fuel system? Start
>> > the engine (or aty least have someone crank it, if it won't start) and
>> > loosen the first bleeder screw in line- there is usually one on top of
>> > the fuel filter housing. Just crank it loose a hair and let any air come
>> > out. If you just get a nice constant supply of fuel, close it up. Next
>> > bleed the lines. Where the lines attach to the injectors, loosen the
>> > fitting on the first injector, and let any air out until you just get
>> > nice fuel. Snug it up and move on to the next injector, until you have
>> > done all of them. Most injectors won't fire if they have air behind
>> them.
>> >
>> > Jim
>> >
>> > Neal Hoover wrote:
>> > >
>> > > is yours a mechanical fuel pump or electrical? those thing have to be
>> > > timed
>> > > just right so fuel is injected precisely when it needs to be.
>> > > do you have a factory service manual for that motor?
>> > > that's where i'd start.
>> > >
>> > > Neal A. Hoover
>> > > Project '76 J-10
>> > > Project '96 XJ
>> > > http://community.webshots.com/user/proj96xj
>> > <http://community.webshots.com/user/proj96xj>
>> > > <http://community.webshots.com/user/proj96xj
>> > <http://community.webshots.com/user/proj96xj>>
>> > >
>> > > ----- Original Message -----
>> > > From: "Stephen Kraus" <UB3RATL4Sf00 at gmail.com<UB3RATL4Sf00%40gmail.com>
>> > <mailto:UB3RATL4Sf00%40gmail.com <UB3RATL4Sf00%2540gmail.com>>
>> > > <mailto:UB3RATL4Sf00%40gmail.com <UB3RATL4Sf00%2540gmail.com>>>
>> > > To: <vwdiesel at vwfans.com <vwdiesel%40vwfans.com> <mailto:
>> vwdiesel%40vwfans.com <vwdiesel%2540vwfans.com>>
>> > <mailto:vwdiesel%40vwfans.com <vwdiesel%2540vwfans.com>>>;
>> > > <xjlist at yahoogroups.com <xjlist%40yahoogroups.com> <mailto:
>> xjlist%40yahoogroups.com <xjlist%2540yahoogroups.com>>
>> > <mailto:xjlist%40yahoogroups.com <xjlist%2540yahoogroups.com>>>
>> > > Sent: Tuesday, August 26, 2008 4:32 PM
>> > > Subject: [xjlist] Engine Questions
>> > >
>> > > > I have nearly completed the 2.1l Turbo Diesel I am putting in the
>> > > Jeep, I
>> > > > have a couple questions:
>> > > >
>> > > > Should the lack of the turbo keep the engine from running
>> > constantly? I
>> > > can
>> > > > get the engine started and it fires up but it acts like its choking,
>> > > slows
>> > > > down, and then stops firing. The longest I've gotten the engine to
>> > hold
>> > > for
>> > > > is about 30 seconds to a minute, that is without the turbo. I don't
>> > > have a
>> > > > reliable hose made to port the turbo air to the air intake yet.
>> > > >
>> > > > Mike Strawbridge been a big help in both the headgasket job and
>> > > torqueing
>> > > > down the head (and letting me make a horrible mess of his garage)
>> > > >
>> > > > I'm posting this to both the VW diesel list and the Jeep list
>> > > because I'm
>> > > > hoping with all the answers I get I should be able to piece together
>> > > what
>> > > I
>> > > > need to do. I just want to remove that damned 2.8l V6
>> > > >
>> > > > --
>> > > > ______________________________
>> > > > Stephen Kraus
>> > > > UB3RATL4Sf00 at gmail.com <UB3RATL4Sf00%40gmail.com> <mailto:
>> UB3RATL4Sf00%40gmail.com <UB3RATL4Sf00%2540gmail.com>>
>> > <mailto:UB3RATL4Sf00%40gmail.com <UB3RATL4Sf00%2540gmail.com>>;
>> > > >
>> > >
>> > >
>> >
>> >
>>
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>
>
> --
> ______________________________
> Stephen Kraus
> UB3RATL4Sf00 at gmail.com;
>

-- 
______________________________
Stephen Kraus
UB3RATL4Sf00 at gmail.com;