GU-2.8TD Starting Update
Submitted: Monday, May 10, 2004 at 14:47
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Member - Hugh (WA)
Hi to those guys contributing to earlier discussion,
I phoned Motson's today and spoke to Noel who was very knowledgeable on this issue and gave some extra advice.
The cover plate in question is indeed for the injection timing piston. The wear mechanism is as posted by "GUMagoo93". The spring is other side than for the GQ pump, hence the fix can be done with pump in-situ. The Motson's fix is a new cover with extra thickness in lieu of shims, as available ex Nissan. For an in-situ fix, I think the Motson's cover seems a good way to go as I could see fitment of shims being a little fidly. Quoted price was $49.50 + postage.
Noel recommended that before replacing the cover plate, that I
check the pump inlet filter which can become blocked. This is a small brass filter locating in the banjo fitting of fuel inlet hose to pump - not the primary fuel filter mounted off the inside guard. If this filter is blocked then it induces similar starting symptoms. Apparently the Nissan fix is to leave the filter removed, however Noel advised they replace it (very cheap). I wonder if the battery fix is somehow related to this filter i.e. electric pump flow is less due to reduced voltage and longer to prime pump if the filter is partially blocked.
I intend to
check the inlet filter to see if this may have been a problem. Given that the engine starts OK now after new battery, I'll hold off on the cover plate for now.
Regards,
Hugh
Reply By: Diesel Do - Tuesday, May 11, 2004 at 15:52
Tuesday, May 11, 2004 at 15:52
Thanks for all the info. Can't decide whether to fit the shim or not...
Car has done 78,000 klm. Mostly long trips towing a boat and loaded with gear. It's absolutely brilliant for this kind of travel. Don't use it (really) off road - it's underpowered low down and the throttle response is horrible for that kind of work. But put a long road in front of it and it's just great. I can drive from
Adelaide to Alice in ~15 hours and not feel buggered when I get there.
Just for comparison,
mine starts within 1-2 seconds, but I use the
seat belt light as the timer, not the glow plug lamp. I haven't checked the delay on the
seat belt lamp, but thinks it's about 10 seconds.
If I leave the ignition on for 30 secs or more, the car will crank for 20-30 seconds (or even several retries) before starting, and then blow heaps of smoke. It actually starts better than that if I don't wait at all before cranking (as you would a petrol engine). I don't do this usually, just tested it for this message.
So no delay is bad - long delay is worse and
seat belt lamp delay is perfect.
This is after replacing the battery about 18 months ago. Before that it was a bugger to start in almost all conditions (except when hot already), and always created a cloud of smoke.
Thanks again.
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