 | Home > Tdi > Boost Pin installation - OIL !!!! |
 
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| frenchy Member Since: 05 Feb 2012 Location: Liverpool Posts: 133  |
So the Morgan Hill boost pin turned up today.
Installation took a little longer than the 10 minutes I've seen on YouTube (expansion tank in the way etc etc) However. on removing the top cover there was oil on the diaphragm and inside the pin cylinder. I'm pretty sure it shouldn't be there 
the oil was black and quite 'fluid' i.e not gunky BTW, didn't notice any real performance difference, but no black smoke either!  Click image to enlarge Click image to enlarge 2000 D2 TD5 - ahhh bless 2006 D3 - no longer with us and sadly missed 1997 300tdi d90 - now with electrics that work! - now with a brand new custom made soft top fitted …...…...............….new chassis now all fixed and driving like new 2010 D4 alas no more, but a lovely colour (Nara) 2016 D4 battery magically fixed with NOCO charger |
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16th Jun 2020 10:35pm |
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| frenchy Member Since: 05 Feb 2012 Location: Liverpool Posts: 133 |
does anybody know...…
 where it is likely to have come from
is it a serious problem
how to remedy
thanks  2000 D2 TD5 - ahhh bless
2006 D3 - no longer with us and sadly missed 1997 300tdi d90 - now with electrics that work! - now with a brand new custom made soft top fitted …...…...............….new chassis now all fixed and driving like new 2010 D4 alas no more, but a lovely colour (Nara) 2016 D4 battery magically fixed with NOCO charger |
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17th Jun 2020 2:22pm |
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| donmacn Member Since: 06 Nov 2017 Location: Nth Scotland Posts: 1848 
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Ah, I remember doing this.....
I took the lid of mine, and it wasn't just oil but all sorts of muck and grit...not pretty. I can't remember if I took pics or not, but if I did I'll post them. I think what's happening there ( and in my case ) is that the oil is coming from the fuel advance pipe at the turbo. If the crankcase cyclone breather thing on the driver's side of the rocker cover is old/ineffective then it's directing more oil than it should back into the air intake pipework, just before the turbo. This then enters the advance pipe, and will make its way up to the fuel pump. I think I gleaned that its something of a trait in the 300Tdi, that the crankcase breather isn't a great design, and that it's all a bit oily. I also had a couple of holes in my advance pipe which wouldn't have helped - delivering no fuel advance at all, and allowing cr*p to get into the diaphragm cover. I don't think it's particulary serious, assuming that the diaphragm isn't holed. How to remedy - you could replace the crankcase breather (allisport do a shiny and expensive allu. one... I'm guilty of that). Then, you could disconnect the breather pipe from the air intake to the turbo. THis is the sort of mod that leads to 'catch cans' etc. and that's a whole other can of worms. (Edit - just looked more closely at your pics - it's slightly strange that the oil is also on the underneath of the diaphragm - is it holed do you think? or is it sealing effectively against the top of the pump? Also - you can quite easily take a look at the intake pipework, just before it enters the turbo. Just to see how oily it is. Might just be a pointer. If it's clean - which is unlikely - then you'd need to look for other explanations. ) (2nd edit - just to stress - have a good look at that pipe that runs from the turbo to the fuel pump. It can chafe against several things along the way. If it's got holes in it, that's going to upset your fuel delivery. I also found that my pipework was a bit broken between the T piece where it meets the turbo, and the wastegate actuator. Awkward to get to, because it's underneath, but again that would affect the wastegate operation.) Donald 1994 Defender 300Tdi 110 SW - owned since 2002 - 230k miles and going strong (The 'rolling restoration' or tinkering thread: http://www.defender2.net/forum/topic58538.html ) 2000 Range Rover P38 4.0L V8 in the past.. RR classic - fitted with 200Tdi 1984 RR classic - V8 with ZF auto box 1993 Discovery 300Tdi not to mention the minis and the Type 2 VW camper... |
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17th Jun 2020 3:36pm |
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| red zepplin Member Since: 26 Mar 2015 Location: Never far from a brew (Lancashire) Posts: 196 
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The breather cyclone is very easy to clean as it is basically an empty container. Just take it off and leave it standing in paraffin over night with the pipes that should clear any sludge when refitting use a new o ring to seal or you will find it will probably leak
simon
Ps when I did mine I didn't notice any great performance increase there are a few threads on here and the general consensus is its helps to do the pin when used with other "engine enhancements " but these ain't racing cars  WHAT COULD POSSIBLY GO WRONG
My sky lantern petition http://chng.it/HJXmZC47 Last edited by red zepplin on 17th Jun 2020 7:07pm. Edited 1 time in total |
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17th Jun 2020 4:34pm |
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| donmacn Member Since: 06 Nov 2017 Location: Nth Scotland Posts: 1848
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Thought I had it here somewhere.
This is what I found when I took the top off my pump. Just horrible. Click image to enlarge As RedZep has said, you can clean the breather, or I forgot to say that the standard plastic ones aren't that expensive - about £20 from memory. Donald 1994 Defender 300Tdi 110 SW - owned since 2002 - 230k miles and going strong (The 'rolling restoration' or tinkering thread: http://www.defender2.net/forum/topic58538.html ) 2000 Range Rover P38 4.0L V8 in the past.. RR classic - fitted with 200Tdi 1984 RR classic - V8 with ZF auto box 1993 Discovery 300Tdi not to mention the minis and the Type 2 VW camper... |
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17th Jun 2020 5:25pm |
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| frenchy Member Since: 05 Feb 2012 Location: Liverpool Posts: 133 |
thanks for the replies.
TBH, the car is driving OK, pre the boost pin installation.....I was hoping for a 'little' bit more Oil where it shouldn't be just concerns me. I have had a scout around and am I right in thinking the small diameter pipe from the top of the boost pin housing connects to the 'outlet air' side of the turbo? Took off the air inlet pipe to the turbo and that is a wee-bit gunky. The outlet of the turbo is gunky too, as is the intercooler and the inlet manifold. Is the turbo the 'weak link' in all of this, leaking oil which the contaminates all inlet & outlet lines. I was thinking of fitting a replacement intercooler soon as the existing looks a bit haggered, but now I'm thinking it will get instantly gunked up!!!!! 2000 D2 TD5 - ahhh bless 2006 D3 - no longer with us and sadly missed 1997 300tdi d90 - now with electrics that work! - now with a brand new custom made soft top fitted …...…...............….new chassis now all fixed and driving like new 2010 D4 alas no more, but a lovely colour (Nara) 2016 D4 battery magically fixed with NOCO charger |
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17th Jun 2020 7:29pm |
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| donmacn Member Since: 06 Nov 2017 Location: Nth Scotland Posts: 1848
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You've got similar thought processes to where I was a little while ago. Trying to get a little more oomph from an older 300tdi.
When I saw all the oil around my turbo hoses, my first thoughts were that the turbo itself would be leaking, but the replies suggested not, and that it would most likely be coming from the crankcase breather. As I said above, you could clean out the hoses: filter to turbo; and the ones to/from the intercooler; divert the breather output into a temporary 'catch can', run it for a wee while and see if things oil up again. I think it's possible for the turbo to leak oil though, and that can cause more serious problems - but it wouldn't cause oil on the inlet side. The advance pipe is the small diameter one you've mentioned. As the turbo spins up and creates pressure, this enters the advance pipe and flows to the boost diaphragm. Pressure pushes the diaphragm (and therefore the boost pin) down. This allows another pin (whos name I forget!) to come out more and supply more fuel. This is why it's also important to check that advance pipe for holes - if it has small holes, the pressure doesn't get to the fuel pump diaphragm, and no matter how good the boost pin is, it won't be working to its full potential. Donald 1994 Defender 300Tdi 110 SW - owned since 2002 - 230k miles and going strong (The 'rolling restoration' or tinkering thread: http://www.defender2.net/forum/topic58538.html ) 2000 Range Rover P38 4.0L V8 in the past.. RR classic - fitted with 200Tdi 1984 RR classic - V8 with ZF auto box 1993 Discovery 300Tdi not to mention the minis and the Type 2 VW camper... |
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17th Jun 2020 7:57pm |
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| frenchy Member Since: 05 Feb 2012 Location: Liverpool Posts: 133 |
Thanks folks,
bit of stripping, inspecting & cleaning to do over the weekend!! 2000 D2 TD5 - ahhh bless 2006 D3 - no longer with us and sadly missed 1997 300tdi d90 - now with electrics that work! - now with a brand new custom made soft top fitted …...…...............….new chassis now all fixed and driving like new 2010 D4 alas no more, but a lovely colour (Nara) 2016 D4 battery magically fixed with NOCO charger |
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17th Jun 2020 10:32pm |
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| frenchy Member Since: 05 Feb 2012 Location: Liverpool Posts: 133 |
Weekend work done.
Took off expansion tank & air filter box, then opened the bonnet all the way to the windscreen and access was great!!!! Took off and cleaned the air pipework from filter to turbo inlet - all a bit mucky near the turbo end, downstream of the crankcase breather inlet. Vacuum line from turbo to boost pin housing looked damage free and clean at both ends Checked diaphragm and it appeared oil free - so maybe it was an of accumulation of gunk over time. Next job is to replace the crankcase breather cyclone unit and associated pipes as the fabric covers were all frayed. Going with shiny red silicone 
Lubricated the 'governor' pin (don't know what its really called  ) that connects with the boost pin chamfer and her took for a spin ………
Performance seems a little better - a would describe it as 'smoother' more than anything, in the 30-50mph range - so that's good. Even took her for a proper blast up the motorway and got upto 85 - not for long mind you as the soft top was flapping like crazy....and I got a bit scared 
So yeah - all a bit better, seemingly smoother running, and quite comfortable at around 65mph
Click image to enlarge Click image to enlarge 2000 D2 TD5 - ahhh bless 2006 D3 - no longer with us and sadly missed 1997 300tdi d90 - now with electrics that work! - now with a brand new custom made soft top fitted …...…...............….new chassis now all fixed and driving like new 2010 D4 alas no more, but a lovely colour (Nara) 2016 D4 battery magically fixed with NOCO charger |
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22nd Jun 2020 10:57pm |
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| red zepplin Member Since: 26 Mar 2015 Location: Never far from a brew (Lancashire) Posts: 196
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Great news Frenchy a word to the wise if you replace the pipe from below the breather cyclone to the crank case ensure you use a lined silicone pipe as silicone doesn't like coming into direct contact over a long period of time with oil
P.s. shiny red is a great colour I have a set Waiting to go on the zepplin 
Simon WHAT COULD POSSIBLY GO WRONG My sky lantern petition http://chng.it/HJXmZC47 |
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23rd Jun 2020 3:40pm |
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| frenchy Member Since: 05 Feb 2012 Location: Liverpool Posts: 133 |
Well there are new shiny inter cooler hoses.....
Click image to enlarge New shiny Standard Size Allisport Intercooler ( need to move the horn!!) Click image to enlarge And just waiting to fit these Shiny Red breather pipes (not lined😬) Click image to enlarge 2000 D2 TD5 - ahhh bless 2006 D3 - no longer with us and sadly missed 1997 300tdi d90 - now with electrics that work! - now with a brand new custom made soft top fitted …...…...............….new chassis now all fixed and driving like new 2010 D4 alas no more, but a lovely colour (Nara) 2016 D4 battery magically fixed with NOCO charger |
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25th Jun 2020 12:18pm |
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| red zepplin Member Since: 26 Mar 2015 Location: Never far from a brew (Lancashire) Posts: 196
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And just waiting to fit these Shiny Red breather pipes (not lined😬)
Just keep an eye on the guy who supplied mine says fatigue would occur about 12 months under normal circumstances looks great
Simon WHAT COULD POSSIBLY GO WRONG My sky lantern petition http://chng.it/HJXmZC47 |
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25th Jun 2020 1:14pm |
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| frenchy Member Since: 05 Feb 2012 Location: Liverpool Posts: 133 |
...... and fitted.
If nothing else, over the last week, removing the radiator frame and the various hoses has given me the opportunity to give some of the nooks and crannies a deep clean with some white spirit and a tooth brush!!! Click image to enlarge Hope the new hoses last over 12 months though 2000 D2 TD5 - ahhh bless
2006 D3 - no longer with us and sadly missed 1997 300tdi d90 - now with electrics that work! - now with a brand new custom made soft top fitted …...…...............….new chassis now all fixed and driving like new 2010 D4 alas no more, but a lovely colour (Nara) 2016 D4 battery magically fixed with NOCO charger |
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25th Jun 2020 10:24pm |
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| red zepplin Member Since: 26 Mar 2015 Location: Never far from a brew (Lancashire) Posts: 196
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looks great and I now need to get mine fitted to allay any fears of the pipes failing just drop stoney racing (looks like you got them from there) an email and ask if the cyclone to crank case is a fluro silicone hose if it is all good if not just keep an eye on it when you lift the bonnet
Simon WHAT COULD POSSIBLY GO WRONG My sky lantern petition http://chng.it/HJXmZC47 |
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26th Jun 2020 8:45am |
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