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| The wildest man in town Member Since: 25 Oct 2020 Location: Boras Posts: 36   
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Removed 4/5 injectors. The 5th one is not coming out bc cam shaft is in the way and still can't turn engine clockwise. Any ideas?
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9th Nov 2020 4:25pm |
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| Sicastle71 Member Since: 21 Aug 2019 Location: West Lancs Posts: 128  
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Jack up a front wheel until it’s just off the ground then put in gear and rotate wheel clockwise should turn the engine over without having to touch the crankshaft nut and struggle hope tht helps it’s how I did mine 👌
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9th Nov 2020 5:13pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17443  
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How many injectors do you actually have in place and clamped down at the moment? Your springback problem may be worse if you only have one cylinder which has compression and is on the compression stroke (normally there would be at least one other on the power stroke).
I recently did this job on by high-mileage Disco2 and had no problems turning the engine as required using a socket and ratchet on the crankshaft pulley. I took each injector out in the order that involves minimal turning of the camshaft until they were all out. Then I sorted out the seats, checked each cylinder with a syringe for fuel ingress with the piston on TDC, cleaned the injectors and prepared them for refitting, then installed them using the same minimal turning sequence I used to take them out. Then I adjusted the tappets in the minimal turning sequence, then rechecked them. At no time did I have any specific problem turning the engine as I needed to. Frankly I am surprised that you engine has good enough sustained compression to behave as you describe, generally if you pull it round against the compression and hold it for a short while before letting go for another pull there will have been enough blowby to reduce or eliminate springback. Is it possible that you allowed fuel to leak into the cylinder that you have completed? If so this may well increase the compression significantly, and could even hydraulic lock the engine before TDC is reached. If you are really concerned, two things you could consider are taking out the injector you have just put back in to check for fuel ingress and to check that you can then turn the engine over with no compression. If you do this you would need at the very least a new copper sealing washer for the injector you have taken out again (but you might get away reusing the same O-ring). Alternatively you could remove the heater plugs to decompress the four cylinders which have them, but this could be a can of worms since the heater plugs are hard to access, difficult to remove, and of course there are only four so one cylinder can't be decompressed by this method. |
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9th Nov 2020 5:27pm |
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| Sicastle71 Member Since: 21 Aug 2019 Location: West Lancs Posts: 128
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Yes very true but was unsure eligibility he is just using a short ratchet and teaching down from the slam panel it can be awkward that way as not much mechanical advantage
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9th Nov 2020 6:58pm |
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| The wildest man in town Member Since: 25 Oct 2020 Location: Boras Posts: 36
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Alright, I managed to turn the cam shaft enough to get the last injector out. Now the engine turns with ease.
Although I put new copper washers in before, I´ll take your advise and wait for new ones to show up before reinstalling the injectors again. Thanks for all help!! |
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9th Nov 2020 8:07pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17443
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At least you know the engine turns freely without compression now.
Perhaps you're lucky enough to have a motor with incredibly good compression! |
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9th Nov 2020 11:02pm |
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| The wildest man in town Member Since: 25 Oct 2020 Location: Boras Posts: 36
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Is it a bad idea to take her for a test drive with the copper washers I replaced? I mounted them on the injectors and installed the injectors. Then without starting the engine, I removed the injectors. I was thinking I could install the injectors again and see if the issue is resolved.
New copper washers won't be here till next week... |
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11th Nov 2020 12:07pm |
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| The wildest man in town Member Since: 25 Oct 2020 Location: Boras Posts: 36
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Got the new copper washers today and installed them. Everything went well.
But now the engine doesn't ignite when I turn it on. The starter motor turns the engine and it sounds like it should. Just no ignition. I've been doing the 5 pump fuel routine and also let the pump run for a good minute or two. But nothing. Any ideas? I should also mention that I installed an EGR blanking kit and a new MAF sensor while I was waiting for the new copper washers. Thanks! |
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13th Nov 2020 5:39pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
you will find that injector need the engine tuning over in order that whey can prime with fuel oil part of process is the can operating plunger each one and also ecu operating the coil`s each one
you also may need to check none retune value in fuel filter head and same time air bleed too WJN500110 Air bleed valve https://www.britpart.com/all-parts/da3950 his none retune kit has a part missing i.e. the duck bill valve |
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13th Nov 2020 6:47pm |
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| The wildest man in town Member Since: 25 Oct 2020 Location: Boras Posts: 36
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Installed the air bleed kit from Britparts the other day. Also the no return valve. So they should be fine. But I read somewhere that the kit from Britparts wasn’t great. Original is preferred?
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13th Nov 2020 7:58pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039  
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Did you reinstall the injector harnas and connected it at the front off the engine? (I forgot the last part
 )
I did the prime routine a few times and when starting took a little long. It didn't start the first time. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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13th Nov 2020 8:00pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
ok cross that off the list |
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13th Nov 2020 8:23pm |
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| The wildest man in town Member Since: 25 Oct 2020 Location: Boras Posts: 36
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Yes  I even double checked.
I'll try to get it going again tomorrow. Read about another starting procedure where you give it full throttle.. https://www.web-rover.co.uk/nav.php?p=td5kb/fuelpurge |
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13th Nov 2020 9:03pm |
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| MadTom Member Since: 10 Sep 2013 Location: Olomouc Posts: 625  
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Once I have changed fuel filter head od 90, because the old one broke due to corrosion. I have use Britpart fiter head, but it was wery hard to start the engine. After one week of troubles, I just took the plastic valves from old head and replaced the Britpart new ones. Problems solved for next 4 years now. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo
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14th Nov 2020 7:27am |
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