850 tdi upgrade project - Page 6

B00TS · Mar 14th, 2015, 08:25

Hi Martin, sorry to hear it's gone leaky on you.

I really admire your passion for the project. Like you say, there are bound to be some gumption traps along the way.

After fettling the manifold, I suppose the head ports are a logical progression - I'll be very interested to see how that pans out. Could have quite a significant effect, I imagine.

You've just got to work out how to keep the head screwed down tight enough!

Good luck and let me know if there's anything I can do to help...

martin_r_smith · Mar 14th, 2015, 12:09

Cheers boots

I will keep at it, I didn't think for a moment it would be easy lol. I'm still using the car every day, just have the expansion tank cap on a bit loosely to relieve the pressure

It's quite incredible really, no coolant loss, no oil/coolant mix, temperature normal, just a bit of exhaust gas getting in the system. Just looking at it you would think there is nothing wrong but try and squeeze the radiator pipes and they are rock solid!

Still, have to look on the bright side and once the hg is done there isn't really a lot else that can go wrong.

martin_r_smith · Mar 25th, 2015, 12:31

The postman brought me some shiney stuff today!

Lightly ported and smoothed, with new everything really. Hopefully get it put on after easter.

brickman · Mar 25th, 2015, 18:24

Damn that looks good!

What do the numbers on the upper edge of the ports mean, flow/volume?

My HG is starting to become more than a weap out the No.1 Cyl end of it, re-torquing it has not helped. Looking at the deck of yours there are a number of places it could be. Pattern HG is only £20 so might give it a shot

martin_r_smith · Mar 25th, 2015, 19:51

Not sure really, they don't seem to correlate to anything. If you are doing the head gasket remember to get new bolts too. If you don't want it to happen again upgrade to 12.9 grade ones too.

B00TS · Mar 26th, 2015, 23:10

Mmm. Very shiny indeed!

When you get the old one off, will there be a hydraulic follower or two up for grabs?

klunk · Mar 27th, 2015, 20:55

Hydraulic lifters are cheap as, I bought a set of 10 Febi/Bilstein lifters last year for mine from German car parts in Swindon, Paid less than £50 shipped. I wouldnt go through all that work dismantling to fit 2nd hand parts?

B00TS · Mar 28th, 2015, 06:39

Ah, fair enough. For some reason I had it in my mind that they'd be more like £50 each! I'll get some new ones then...

Thanks for the info.

klunk · Mar 28th, 2015, 10:25

Linky:

http://www.germanautopartsdirect.co....duct_info.html

These are what i bought, You may find some cheaper but these at the time were the cheapest quality ones i found.

B00TS · Mar 28th, 2015, 11:24

Thanks mate! (Sorry for the mini-hijack, Martin.)

Mar 14th, 2015, 08:25	#51
B00TS Senior Member Last Online: Aug 30th, 2021 08:18 Join Date: Jan 2010 Location: Stroud	Hi Martin, sorry to hear it's gone leaky on you. I really admire your passion for the project. Like you say, there are bound to be some gumption traps along the way. After fettling the manifold, I suppose the head ports are a logical progression - I'll be very interested to see how that pans out. Could have quite a significant effect, I imagine. You've just got to work out how to keep the head screwed down tight enough! Good luck and let me know if there's anything I can do to help... __________________ 2007 V70 D5 SPORT 150k 1997 V70 2.5TDI 290k - Sent on to pastures new!

Mar 14th, 2015, 12:09	#52
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	Cheers boots I will keep at it, I didn't think for a moment it would be easy lol. I'm still using the car every day, just have the expansion tank cap on a bit loosely to relieve the pressure It's quite incredible really, no coolant loss, no oil/coolant mix, temperature normal, just a bit of exhaust gas getting in the system. Just looking at it you would think there is nothing wrong but try and squeeze the radiator pipes and they are rock solid! Still, have to look on the bright side and once the hg is done there isn't really a lot else that can go wrong. __________________ 1983 244

Mar 25th, 2015, 12:31	#53
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	The postman brought me some shiney stuff today! Lightly ported and smoothed, with new everything really. Hopefully get it put on after easter. __________________ 1983 244

Mar 25th, 2015, 18:24	#54
brickman Premier Member Last Online: Nov 14th, 2023 10:40 Join Date: Jul 2013 Location: Glasgow	Damn that looks good! What do the numbers on the upper edge of the ports mean, flow/volume? My HG is starting to become more than a weap out the No.1 Cyl end of it, re-torquing it has not helped. Looking at the deck of yours there are a number of places it could be. Pattern HG is only £20 so might give it a shot __________________

Mar 25th, 2015, 19:51	#55
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	Not sure really, they don't seem to correlate to anything. If you are doing the head gasket remember to get new bolts too. If you don't want it to happen again upgrade to 12.9 grade ones too. __________________ 1983 244

Mar 26th, 2015, 23:10	#56
B00TS Senior Member Last Online: Aug 30th, 2021 08:18 Join Date: Jan 2010 Location: Stroud	Mmm. Very shiny indeed! When you get the old one off, will there be a hydraulic follower or two up for grabs? __________________ 2007 V70 D5 SPORT 150k 1997 V70 2.5TDI 290k - Sent on to pastures new!

Mar 27th, 2015, 20:55	#57
klunk Member Last Online: May 31st, 2023 20:03 Join Date: Jul 2013 Location: Barnstaple	Hydraulic lifters are cheap as, I bought a set of 10 Febi/Bilstein lifters last year for mine from German car parts in Swindon, Paid less than £50 shipped. I wouldnt go through all that work dismantling to fit 2nd hand parts? __________________ 1995 855 T5 Manual 1996 855 TDI Manual

Mar 28th, 2015, 06:39	#58
B00TS Senior Member Last Online: Aug 30th, 2021 08:18 Join Date: Jan 2010 Location: Stroud	Ah, fair enough. For some reason I had it in my mind that they'd be more like £50 each! I'll get some new ones then... Thanks for the info. __________________ 2007 V70 D5 SPORT 150k 1997 V70 2.5TDI 290k - Sent on to pastures new!

Mar 28th, 2015, 10:25	#59
klunk Member Last Online: May 31st, 2023 20:03 Join Date: Jul 2013 Location: Barnstaple	Linky: http://www.germanautopartsdirect.co....duct_info.html These are what i bought, You may find some cheaper but these at the time were the cheapest quality ones i found. __________________ 1995 855 T5 Manual 1996 855 TDI Manual

Mar 28th, 2015, 11:24	#60
B00TS Senior Member Last Online: Aug 30th, 2021 08:18 Join Date: Jan 2010 Location: Stroud	Thanks mate! (Sorry for the mini-hijack, Martin.) __________________ 2007 V70 D5 SPORT 150k 1997 V70 2.5TDI 290k - Sent on to pastures new!

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