 | Home > Puma (Tdci) > FORScan OBDII scanner works on PUMA 2.4 TDCI |
 
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| ozzie1989 Member Since: 25 Feb 2009 Location: Wales Posts: 282   
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Again, whilst you've got them out you may as well get them tested. It's cheap enough and you can't really tell by looking.
As components wear they can become a little out of sync, the pump re-learn and pilot correction can help and cure a faint knock from my personal (non-professional) experience. A faulty VCV can cause issues too. Again fairly cheap to replace. If your idle isn't steady (as it it jumps up and down a bit) I'd go for VCV being faulty if the injectors turn out to be ok. Now: 2010 2.4 TDCi 110 Utility Wagon Then: 2004 2.5 TD5 90 Hard Top (X-Tech Edition) |
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23rd Jan 2019 7:47pm |
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| Tomotomo Member Since: 13 Feb 2018 Location: Bucks Posts: 71 
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I have been quoted 125 quid to bench test them. Is that about fair?
The cynic in me is telling me they will turn around and say they are all knackered.  
Guess I should get a print out? |
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24th Jan 2019 12:02pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2414  
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I had the same problem. I had to spend some time looking for a shop that would not just wanted to sell me new injectors. Puma 110" SW
............................................................. Earth first. Other planets later |
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24th Jan 2019 12:09pm |
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| Tomotomo Member Since: 13 Feb 2018 Location: Bucks Posts: 71
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Are they supposed to come out dripping in oil?
 Click image to enlarge I have two out now. Two to go. I pulled the connectors off the injectors one by one while it was running. No 1 cylinder made hardly any change. No 2 a little No 3 the biggest change No 4 a little. So I am guessing no 3 is my healthiest Cylinder/ injector  |
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24th Jan 2019 12:59pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2414
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All normal. When refitting make sure the injector seat on the head is clean. Puma 110" SW
............................................................. Earth first. Other planets later |
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24th Jan 2019 1:08pm |
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| Tomotomo Member Since: 13 Feb 2018 Location: Bucks Posts: 71
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Ok they are in for testing should find out tomorrow. Tried to clean the head where the injector goes. I don't have a seat cutter. What else could I use ? A clean cloth and a flat head screw driver? Is it ok to spray some brake cleaner down there to loosen the oil and carbon?
I will do an oil change when it's back together. I have taken the rocker cover off and changed the gasket. Can't see any copper washers on the head. Just on the end of the injectors. They look unworn. I will change them anyway. |
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24th Jan 2019 6:48pm |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2414
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For cleaning I use a cloth wrapped around the same thin and long bolt used for the inj. clamps. The idea is to remove debris, soot particles, etc. I would not spray anything. Yo do need to change the washers as they get flattened once used. Puma 110" SW
............................................................. Earth first. Other planets later |
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24th Jan 2019 8:39pm |
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| ozzie1989 Member Since: 25 Feb 2009 Location: Wales Posts: 282
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As suggested if you can get away with it use a cloth on something long, preferably round ended tool.
If the seats are really bad you'd need a seat cutter but be careful, I bought a cheap one thinking it wouldn't be that good. It didn't seem that sharp. Didn't push down on it or anything but by gosh the head is soft, turned once and it seemed to take of all the crud and some metal. Let us know how you get on with the injectors... I thought that price was a bit steep though to be honest
Forgot to say, as you're not refitting them straight away as long as what you spray will evaporate I can't see it doing any harm, but again I'm not an expert  Now: 2010 2.4 TDCi 110 Utility Wagon
Then: 2004 2.5 TD5 90 Hard Top (X-Tech Edition) |
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24th Jan 2019 10:53pm |
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| Tomotomo Member Since: 13 Feb 2018 Location: Bucks Posts: 71
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injector results.....
Well surprise surprise they all failed.   
I am not sure I entirely trust the diagnosis. But i cant really make head nor tail of the results. Any help deciphering the following would be great. Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge  |
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25th Jan 2019 11:27am |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2414
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TBH I do not know what it means. You can ask the shop what is the problem: leak, full load, return, preinjection, emissions. Those are the parameters I know. I hope somebody with more knowledge can help. Worse case scenario you can get new ones at 150 quid ea from a forum member.
If the issues are the nozzles then you can have them exchanged. They are sold as spares. Puma 110" SW ............................................................. Earth first. Other planets later |
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25th Jan 2019 11:42am |
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| ozzie1989 Member Since: 25 Feb 2009 Location: Wales Posts: 282
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Hmm, I'm no expert either.
What I can see though is that on page 2 injectors 1,2,3 were out of range of 'normal values' and on page 3 injector 4 was out of range. Also on page 2 a temperature reading was slightly high. Perhaps take the sheets to another garage and ask their opinion on the results? Knowing that you'd removed the injectors yourself I would have thought they'd have guessed you wouldn't be buying new ones from them and as such wouldn't have biased the results? Let us know how you get on Now: 2010 2.4 TDCi 110 Utility Wagon
Then: 2004 2.5 TD5 90 Hard Top (X-Tech Edition) |
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25th Jan 2019 6:03pm |
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| Tomotomo Member Since: 13 Feb 2018 Location: Bucks Posts: 71
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Thanks for the advice.
Yes I noticed the temp was above the set point. I wonder if that's the way they can manipulate the results? Problem I have is I guess I will never know. The tester said that no 4 injector was the most worrying as it had practically no pilot .01 And i think the last page is leak off amounts and it had the highest. So logic should say that no 4 was causing the misfire at idle. But as none off them leaked in 1st test if I am reading it right, that wouldn't explain the extra grey smoke I get when it's starting from cold. Feeling a bit down as know i am thinking it could be compression related as that typically improves as an engine warms... Problem is you can't compression test with the fuel pump on ? Maybe I should just bite the bullet buy 4 new injectors. Coul |
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26th Jan 2019 11:15am |
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| ozzie1989 Member Since: 25 Feb 2009 Location: Wales Posts: 282
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Unless you're willing to hand it over to a transit specialist, or get the injectors re-tested I think you're right, change the injectors and see what happens. It is a rather expensive leap of faith to take though...
Out of interest, how bad is the misfire at idle? Do you have a video of it? Now: 2010 2.4 TDCi 110 Utility Wagon Then: 2004 2.5 TD5 90 Hard Top (X-Tech Edition) |
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26th Jan 2019 11:20am |
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| 4wd-junky Member Since: 31 Aug 2014 Location: UK Posts: 89
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Grey smoke at cold start could also be caused by the EGR valve.
I'm reading with interest, but as you've discovered we're all out of our depth on this one ….. I'd be looking for a transit expert that you can trust. Last edited by 4wd-junky on 26th Jan 2019 8:27pm. Edited 1 time in total |
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26th Jan 2019 1:45pm |
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