reb78 Posted October 14, 2015 Share Posted October 14, 2015 As above, how noisy should the Bosch VE FIP be? Mine has a noticeable and loud tick (a bit like tappets but a lot faster, and I'm convinced its not the tappets) - Its there all the time you are using the accelerator and is particularly noticeable if you apply light throttle on the overrun. I am convinced that a large proportion of my cab noise is this and if i can reduce it my cab would be a quieter place. Is noise from them normal or should they be nearly silent? Its been like this for 3+ years, so i dont think it is a problem that is going to disable the car overnight, but it does seem to be getting gradually louder. Does my pump need a rebuild or is this normal? If it is normal, would building some sort of soundproofing box or blanket around the pump be beneficial to reduce the noise? Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted October 14, 2015 Share Posted October 14, 2015 I suspect that it's either the vacuum pump or the lift pump just behind the injection pump on the block. Can you record the noise? Quote Link to comment Share on other sites More sharing options...
Maverik Posted October 14, 2015 Share Posted October 14, 2015 Also get under the truck and put your ear as close to the sump as you can.... see if there's a tick down there... Quote Link to comment Share on other sites More sharing options...
muddychris300tdi Posted October 14, 2015 Share Posted October 14, 2015 +1 for vacume pump, I couldn't believe the difference when I fitted I new one. Quote Link to comment Share on other sites More sharing options...
discomikey Posted October 14, 2015 Share Posted October 14, 2015 get a long screwdriver (or socket extension) and put the blade against the suspect component while the engine is running. put your ear to the other end of the screwdriver and listen. it becomes very clear what the noise is coming from if you probe around a few suspect things! Quote Link to comment Share on other sites More sharing options...
steve b Posted October 14, 2015 Share Posted October 14, 2015 Tapping from the IP usually suggests low fuel flow in , they can still run ok when driven . I'd be looking for small air leaks in the fuel delivery for a start cheers Steveb Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted October 14, 2015 Share Posted October 14, 2015 200Tdi's have proper vacuum pumps so they don't produce a tick..... 1 Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 15, 2015 Author Share Posted October 15, 2015 Sorry for the slow response, i was trying to get a video. You can hear it most of the time i am accelerating in this: http://vid645.photobucket.com/albums/uu179/reb1978/3C7F7D36-C30A-4797-975D-6862D9F61F79_zpsnxldpvkh.mp4 For the purposes of helping you hear it though, i get the specific noise i am talking about to go silent at 1.38 (just rolling in gear at about 30mph, no accelerator) and then enter a speed camera box at 1.41 and make it start again as i carry on going forward, but just add light pressure on the accelerator pedal. Its the high pitched clicking noise you can hear on and off throughout and, like i say, it is most noticeable on the overrun with just a light touch on the accelerator pedal. So when i go through the camera box, i am not accelerating, just moving down the hill, in gear with a light touch on the pedal. It cant be the lift pump as the mechanical unit is gone, replaced with a facet electrical pump. Flow is high on this and so i also doubt it is lack of fuel. Furthermore, the noise was the same with the old mechanical lift pump (one reason for changing it was in case it was the lift pump making the noise). The vacuum pump - perhaps, but i thought that was a problem with the 300tdi mainly, and i cant see why that would come and go with light throttle? Discomikey - i have been all over it with a stethoscope, but it doesnt seem to do it at idle (or even if you rev it in neutral), so i cant find it this way. I am convinced that if i can reduce/eliminate this noise i will make the cab a much quieter place to be! I hope you can hear it! Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted October 15, 2015 Share Posted October 15, 2015 Have you got a dripping injector? Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 15, 2015 Author Share Posted October 15, 2015 I don't know Dave. What makes you think that? Quote Link to comment Share on other sites More sharing options...
Scotts90 Posted October 15, 2015 Share Posted October 15, 2015 Here's an "out the box" suggestion....mine developed a ticking noise a while back and it turned out to be the viscous fan unit giving up, it eventually spat the bearings out. Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted October 15, 2015 Share Posted October 15, 2015 Just that it would cause a tick under load if it wasn't injecting on time. Ive got a few injectors in the Shed, I can post you one to try swapping them out if you want to? Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 15, 2015 Author Share Posted October 15, 2015 Just that it would cause a tick under load if it wasn't injecting on time. Ive got a few injectors in the Shed, I can post you one to try swapping them out if you want to? Thanks for that David. These injectors were reconned about three years ago - no guarantee that they aren't the problem though. I've got the old ones in the garage, so I might try swapping them around. For this process will I get away with reusing the current injector seals and leak off washers? The viscous fan is an interesting one Scott. I don't think it's that in this case as it's been off a few times for various jobs and the 110 run intermittently without it and I don't recall the noise going away. One thing I have wondered is that the old lift pump had potentially failed for some time (but with no effect on performance apparently) - would the fact that the FIP would have done the job of lifting fuel have damaged it and caused this in some way? Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted October 15, 2015 Share Posted October 15, 2015 Yeah I'd reuse the washers.. Just do 1 injector and try it. Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 18, 2015 Author Share Posted October 18, 2015 Well, put my old set of injectors in and it's still there slightly smokier too, so I'll swap then back before the mot next month. So my thoughts are back with the FIP? Or possibly the vacuum pump? Any ideas? Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted October 18, 2015 Share Posted October 18, 2015 Doubt the vac pump it's a rotary vain pump and they don't generally tick. I have on in the shed however if you want to try it? Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 18, 2015 Author Share Posted October 18, 2015 Thanks David. I have the old vac pump off if my TD that I could try, but like you say, it's unlikely on these (unlike the 300tdi). Another thought came to me earlier. Could the exhaust manifold gasket cause this? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted October 18, 2015 Share Posted October 18, 2015 Leaking exhaust gaskets can produce a ticking yes. If you remove the viscous fan you could do the fag paper test. Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 18, 2015 Author Share Posted October 18, 2015 the fag paper test. ??? Quote Link to comment Share on other sites More sharing options...
Landy-Novice Posted October 18, 2015 Share Posted October 18, 2015 ??? im assuming he means with viscous fan remved, you can use a fag paper to detect exhaust leaks. not what you want to hear but dont 200's 'tick' if headgasket has gone at cyl 4? also a mate of mine thourght his engine was knocking when over 1800rpm. so he reshelled bottom end to then realise that it was fip.. i cant really tell by your vid as there are to many other rattles, any change of a vid of it stationary? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted October 18, 2015 Share Posted October 18, 2015 Remove the fan so there's no airflow. Then hold a bit of fag paper, or other similar light material, around the manifolds and joints to see if there's a pulsing of gases escaping anywhere. Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 18, 2015 Author Share Posted October 18, 2015 im assuming he means with viscous fan remved, you can use a fag paper to detect exhaust leaks. not what you want to hear but dont 200's 'tick' if headgasket has gone at cyl 4? also a mate of mine thourght his engine was knocking when over 1800rpm. so he reshelled bottom end to then realise that it was fip.. i cant really tell by your vid as there are to many other rattles, any change of a vid of it stationary? You just can't hear it at all when stationary. Seems that it needs to be under load. If the HG had gone, wouldn't I be able to feel it if gas is escaping and causing a tick? I can get me hands round the back of the engine and can't feel any puffs of air. (No water or oil loss or mayo in the oil, not that that always accompanies HG failure) Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted October 19, 2015 Share Posted October 19, 2015 Yes, I retract my suggestion of vacuum pump - the 300 is prone to ticking when worn. I assumed this was such a beast. I'd double check that you've got good fuel pressure to the FIP. Take it for a spin, pull over, then crack the nut on top of the filter, or the inlet to the FIP. Check you've got a good flow of fuel. I've heard similar noises when associated with clogged filters/failed lift pumps. In fact, when I was running on WVO and prone to clogged filters, I used to use the appearance of such a noise as a warning of impending complete fuel starvation. Other than that, then yes I'd agree with FIP noise. HG or exhaust manifold doesn't quite work for me - it's just a little too distinct and doesn't appear at idle. I'd also be looking closely at your electrical replacement. Given that it's non-standard, I'd be looking at the spec and if it's working correctly. Quote Link to comment Share on other sites More sharing options...
reb78 Posted October 19, 2015 Author Share Posted October 19, 2015 The fuel to the FIP should be good. I have this pump fitted: http://www.facet-purolator.com/dura-lift-pumps.php Details of my installation here: http://forums.lr4x4.com/index.php?showtopic=93879 Flow is really good - its rated for 33-50 gallons per hour. It will fill the filter in seconds. One thing I have noticed about it is that you can sometimes observe what appears to be a low fluid level in the clear filter bowl. This worried me at first, but reading the bottom FAQ here, i think it is normal? http://www.facet-purolator.com/faq.php - Removing the outlet pipe and running it into a bowl, it pumps really well regardless. Also, it has made this noise for at least two years, so has done it on several mechanical lift pumps too and has been through regular filter changes in that time. I'm a bit stumped. Quote Link to comment Share on other sites More sharing options...
TheRecklessEngineer Posted October 19, 2015 Share Posted October 19, 2015 How is the fuel out of the FIP? If there's some restriction internally then it won't flow out like it should. But we're into the internals of the FIP at this point - I'd be happy to point a finger at it. DIY overhaul isn't impossible, but there are plenty out there who will do it for you. Quote Link to comment Share on other sites More sharing options...
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