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New TFSI owner woes and query

antwan64og Jul 9, 2018

  1. antwan64og

    antwan64og Well-Known Member

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    Bought a 2006 BUL TFSI last night and Oil pressure light came on on the way home so coasted and got a lift on a flat bed. Top end sounds ok, with likely culprit being the oil pump at 99k.

    Engine is coming out this weekend to inspect and see whats what.

    Other than a new cam lobe, a HPFP upgrade and cleaning the inlet valves is anything else worth doing now along with the oil pump and maybe a clutch?

    Is the balance shaft delete oil pump kit on ebay any good?
    Is a sachs Xtend clutch strong enough for the torque from mapping or is the sachs SRE organic needed?

    TIA
     
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  3. RichMk3

    RichMk3 Active Member Bronze Supporter

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    Hi.

    I'd check the oil pickup in the sump, sometimes can get blocked and cause oil pressure issues, or as you say the oil pump.

    Water pump and cam belt worth doing while the engines out. Check the dmf when you change the clutch also.

    With regard to tuning, STD clutch will be okay, especially if 2wd, upto 270bhp... Some people have run much more without problems. That's the practical limit with the standard turbo anyways.
     
  4. antwan64og

    antwan64og Well-Known Member

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    Thanks.

    Cambelt, water pump and timing chain were done 6 weeks ago so thats a bonus.

    I’ll always change a DMF with a clutch, previous owner of my A3 just changed the clutch and the bad DMF killed the clutch within 5,000 miles.

    Good to know on the clutch, it’s quattro but as you say the small turbo limits the torque output anyway.
     
  5. antwan64og

    antwan64og Well-Known Member

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    Erm..... a picture says 1000 words. Low oil pressure culprit identified.

    The metal filings are a bit worrying but see what I find next.

    The motor is on an engine stand anyway
     

    Attached Files:

  6. antwan64og

    antwan64og Well-Known Member

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    Oil pump doesn’t look to healthy

     
  7. antwan64og

    antwan64og Well-Known Member

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    Turns out oil pump bolt had snapped.

    Is any big end play acceptable?

     

    Attached Files:

  8. antwan64og

    antwan64og Well-Known Member

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    Friday night the 1.8t pump on, fitted a new CHRA to the turbo while it was out and noticed that the DMF and clutch was goosed so had ordered replacements.

    Sump back on and was ready to throw the DMF and clutch on for the final stretch home.
    Clutch pilot bearing did not want to come out at all, oh buggery.

    Ordered an inner bearing puller kit on Amazon prime today so should be here Sunday (tomorrow).

    I need the car ASAP since I spun and crashed the A3 in heavy rain last Sunday so been borrowing various cars to get about for the last week.

    I know I shouldn’t of but in my haste to get it on the road I took the gamble of not changing mains and big end bearings since it was another £200 and I figured if the bottom end was toast then the head/cams probably were too And I’ll get a refurbed engine if it does go to save messing about.
     

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  9. antwan64og

    antwan64og Well-Known Member

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    Well the inner bearing tool pulled the inner race out of the pilot bearing leaving the bearing housing siezed in place.

    6 hours of trying every tool I could find and reverting back to patiently hammer and chiselling (which was fun) the bearing finally came out.

    Turns out I had ordered the wrong replacement, most B7 pilot bearings are 24mm except the 2.0 TFSI which is 22mm and 1.8t which is 21mm.
     

    Attached Files:

  10. antwan64og

    antwan64og Well-Known Member

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    I thought getting the engine in and running would be about 4 hours. It took more like 8hours inishing at 2am last night.

    The downpipe flexi disintegrated upon reinstall but at least she runs. Good excuse for a new one and decat really
     

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  11. antwan64og

    antwan64og Well-Known Member

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    The saga continues.....
    At low load under 2000rpm the low oil pressure warning comes on sometimes. I felt like burning the car when it first happened!

    Spoke to the company who provided the 1.8t oil pump and they said oil pressure can be bumped up with a quarter turn of an allen key.
    (The 1.8t pump flows more than the TFSI pump so they dump the excess pressure with an adjustable valve.)
    That means the sump has to come off again, muda f@*%#$.

    Hopefully it’s an easy fix :help:
     
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  13. antwan64og

    antwan64og Well-Known Member

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    Just to complete the story.

    I picked this out of the sump with my fingers through a window in the block.....
    In hindsight getting the crank polished and all new bearings might of been a good investment if that was the weak point.
     

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