 | Home > Tdi > Engine starting problems |
 
|
|
|
| trickster5000 Member Since: 12 Dec 2015 Location: East Yorkshire Posts: 512   
|
Hi,
So after leaving it overnight, the engine fires once at the turn of the key, then has to be cranked over several times before it starts. Since it fires once, I'm guessing there's a little diesel in the top of the injectors but then nothing after that and so has to be cranked until the fuel reaches the injectors again. I have replaced the fuel lift pump and checked all the fuel leak-off pipes for leaks or openings - nothing obvious. Is there any way to properly check for air leaks in the fuel leak-off system? Edit: Engine is a 300tdi out of a disco if it helps Matt. '89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html |
||
27th Dec 2016 1:55pm |
|
| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347 
|
Check your leak off pipes again.
I had the exact same thing where it would start on first turn then stall. Crank it over for a while and then it would start. Traced it to one of the leek of pipes had a hairline crack which was letting in air. Also check that the banjo nuts are done up tight, they can occasionally work loose. Failing that, check all your other pipework for leaks and your stop solenoid on the injector pump. Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197 Self confessed mileage hunter  |
||
|
27th Dec 2016 2:48pm |
|
| trickster5000 Member Since: 12 Dec 2015 Location: East Yorkshire Posts: 512
|
Just been out to have another look at the leak-off pipes. I think the safest thing to do is just buy a whole new leak-off system inc banjos and copper washers. Whilst I can't find an actual crack, the braided pipes are very frayed and worn and look very suspect. Only 20 odd quid and I think it'll fix the problem.
 Click image to enlarge Click image to enlarge Matt. '89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html |
||
|
27th Dec 2016 3:18pm |
|
| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347
|
 Good shout. Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197
Self confessed mileage hunter |
||
|
27th Dec 2016 3:27pm |
|
| trickster5000 Member Since: 12 Dec 2015 Location: East Yorkshire Posts: 512
|
Little update to this:
Looks like I'm still having problems even after a completely new set of leak-off pipes inc. banjos and sealing washers. Click image to enlarge I'd not noticed it as much recently as we've been using it more often. It seems to be a really slow leak since leaving it 1-3 days and it'll start first time, however, anything longer than that takes a fair bit of cranking to get it started. Can anyone suggest what to check next (just had a new fuel lift pump and new leak off pipes)? Need to get this sorted asap as it's putting a lot of strain on battery/starter motor etc. Matt. '89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html |
||
|
20th Apr 2017 12:43pm |
|
| trickster5000 Member Since: 12 Dec 2015 Location: East Yorkshire Posts: 512
|
Thanks for the reply. Is there an easy way to check if the system is letting in air? I've had a good poke around with a torch, checked all union nuts are done up tight etc, nothing looks obvious. Matt.
'89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html |
||
|
20th Apr 2017 4:58pm |
|
| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
i have used clear fuel line to check for this problem in the past
also check your injector pump run sol is working 100% |
||
|
20th Apr 2017 7:03pm |
|
| trickster5000 Member Since: 12 Dec 2015 Location: East Yorkshire Posts: 512
|
Thanks for your help. I'll have to dig around in the garage see if I can find some clear piping.
In the meantime, I lifted the driver's seat cover to have a look at the top of the tank. Does the following look normal for a 26 year old car? It looks quite corroded around the elbows, but I can't see any holes, is there any sort of gasket or seal here that could be replaced? Click image to enlarge Click image to enlarge Matt. '89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html |
||
|
20th Apr 2017 8:20pm |
|
| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8155  
|
fuel filter sealed correctly? not an old seal in there too? or its come undone?
was going to post you can just use any POL resistant pipe for the leak off pipes rather than new banjo chain, bnut they look dry. Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
||
|
21st Apr 2017 8:58am |
|
| trickster5000 Member Since: 12 Dec 2015 Location: East Yorkshire Posts: 512
|
Thanks, but I replaced the fuel filter a couple of weeks ago when I serviced it. Ran a bit of diesel round the seal and it doesn't look to be leaking at all.
This evening I'm going to take the stop solenoid out, test it and replace the little O ring, see if that's causing a problem. Also check for wear on the plunger. Matt. '89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html |
||
|
21st Apr 2017 11:40am |
|
| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
|
I remember a similar problem with a 300tdi Discovery that was eventually traced to a corrosion pin hole in the elbow from the top of the tank. It was a
 to find and was temporarily cured by coating the whole thing with epoxy resin, which proved the diagnosis. Barring anything more obvious, it'd be worth a go with yours. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
||
|
21st Apr 2017 12:12pm |
|
| trickster5000 Member Since: 12 Dec 2015 Location: East Yorkshire Posts: 512
|
Thanks LRA. Following the golden rule of troubleshooting, changing one thing at a time, I will only do the stop solenoid tonight, if that doesn't fix it I'll try the epoxy resin trick sometime next week. Matt.
'89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html |
||
|
21st Apr 2017 1:26pm |
|
| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8155
|
so the fault was there prior to the filter change?
you wont see diesel leaking if its drawing in air and diesel is running back to tank Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
||
|
21st Apr 2017 2:37pm |
|
| trickster5000 Member Since: 12 Dec 2015 Location: East Yorkshire Posts: 512
|
Yes, which makes me think it's not the filter especially as I did moisten the seal before putting it on Matt.
'89 90 CSW with a 3.5 V8 conversion (WIP) - http://www.defender2.net/forum/topic46809.html |
||
|
21st Apr 2017 3:45pm |
|
|
|
| All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2025 Futuranet Ltd & Martin Lewis
