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Engine rebuild advice needed

Discussion in 'A3/S3 Forum (8L Chassis)' started by patTTpoa, Nov 7, 2011.

  1. patTTpoa
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    patTTpoa Member

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    [Nov 7, 2011]
    As some of you may know, I've got to replace the engine in my S3.
    Now I'm picking up a AGU engine thrus/fri this week & as soon as I've got it home its coming apart to be checked over etc

    My main question is what should I do with it in terms of upgarding things (internals)?

    My list so far is forged con rods, but I'm not sure if there is any thing else I should do?

    Pat
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  3. StaceyS3
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    StaceyS3 Well-Known Member

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    [Nov 7, 2011]
    Rods are the main thing they are defi nately a must if tuning and putting more power through the engine

    Exhaust valve guides are worth doing in the head as they can wear quite a bit
    #2
  4. beachbuggy
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    beachbuggy Well-Known Member

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    [Nov 7, 2011]
    You'll need to change the big end bearings anywAy as you're fitting rods. Well worth changing crank bearings as well. Also it was me I'd change the oil seals at both ends of the crank. Not heard of them failing but better to be safe than sorry. Also get a new oil pump and oil pick up. Agagain pump not exactly necessary but well worth it and pick up is a must. New piston rings on the old agu pistons and you'll be good to go.
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  5. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Nov 7, 2011]
    may as well do the rings and hone the bores when its apart tbh.

    Get the valve guides checked and replaced if needed and have the valves lapped in.

    Replace the oil pump too.
    #4
  6. patTTpoa
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    patTTpoa Member

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    [Nov 8, 2011]
    Thanks, I'll get a list together then I'll post it up to see what you think.

    Pat
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  7. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Nov 8, 2011]
    Get the head checked over. Pressure tested and skimmed if necessary.

    I'm rebuilding my engine in the new year so i'll be keeping an eye on this thread.
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  8. patTTpoa
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    patTTpoa Member

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    [Nov 11, 2011]
    Hello again :p

    I went on a bit of a road trip last night & picked up an AGU engine which I won on ebay.

    The bloke I got it from was sound & I had a good old chat (like you do) with him, as he is well into his VAG's.

    :blahblah1: anyway....

    He gave me a few extra bits & bobs which are of no real use to me, but I took them anyway :icon_thumright:

    But one of the bits was a solid flywheel, he told me that it's a G60 ABF flywheel!

    Which if it is could I use it?


    Pat
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  9. beachbuggy
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    beachbuggy Well-Known Member

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    [Nov 11, 2011]
    Yes I believe you can use it called a solid mass flywheel, used as an upgrade to dual mass flywheel. Maybe worth getting it refaced though just to be sure it's ok, well worth fitting though.
    #8
  10. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Nov 11, 2011]
    Good work. I managed to source an AEB head recently too. What are your plans for the engine?
    #9
  11. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Nov 11, 2011]
    Uses a 228mm clutch plate vs the S3's 240mm so not a straight swap... not seen it done on an S3 tbh as the clutch is smaller... depends what you want I guess...

    <tuffty/>
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  12. patTTpoa
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    patTTpoa Member

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    [Nov 11, 2011]
    Thanks for the info, so it's a no no.
    Never mind, I'll put it on the bay with the rest of the bits

    Pat
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  13. patTTpoa
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    patTTpoa Member

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    [Nov 11, 2011]
    I'm going to do a full strip down & rebuild, full head service & bottom end forged rods etc.

    I'm trying to put a list of parts etc together so you guys can have a look over.
    I know one thing the misses isn't going to be happy if she see's the prices, so we'll keep that on the low yeah?! Lol

    Pat
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  14. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Nov 11, 2011]
    I hear that brother!!...

    <tuffty/>
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  15. StaceyS3
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    StaceyS3 Well-Known Member

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    [Nov 11, 2011]
    Know that feeling misses is at the last thread with costs on mine keep promising to save for a house lol
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  16. MUSH
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    MUSH MUSH Developments Ltd.

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    [Nov 11, 2011]
    Amen...!
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  17. patTTpoa
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    patTTpoa Member

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    [Nov 12, 2011]
    LOL great stuff!!

    Ok heres my list of parts for you guys to have a look at, add to the list if you feel I've missed anything

    Complete Gasket Set
    Head bolts
    Valve oil seals
    Forged con rods - Hopefully already sorted
    Piston Rings
    Wrist Pins
    Crank bearings & big end bearings
    Water pump
    Oil pump
    Cam belt kit
    Spark plugs
    Clutch kit
    Engine oil

    If you think I should add or take off anything say, as you guys know the in'n'outs!

    Just a thought........ but should I think about a hybrid turbo now?

    Pat


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  18. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Nov 12, 2011]
    G60 flywheel is for 228mm clutch, your std clutch is 240mm
    #17
  19. aragorn
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    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    [Nov 12, 2011]
    I didnt bother touching the wrist pins when i did mine.

    Used the original pistons and pins, and new brute rods.

    You'll need to ask around and find a decent reputable local engineering shop.

    You'll want the bores checked and if within tolerances honed. My block had a ridge on the cylinders, but the bores were still within tolerance, so i just had it honed and reused the original pistons. If they're out of tolerance you'll have to rebore and go for larger pistons. I also had the block face skimmed very slightly to ensure a perfect seal on the new headgasket.

    With the head i had it lightly skimmed to ensure it was flat, washed heavily as it was caked in sludge, then i had the valve guides checked and the stem seals replaced.

    From memory, i paid around £100 for the block prep and about £150 for the head work.
    #18
  20. patTTpoa
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    patTTpoa Member

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    [Nov 12, 2011]
    Thanks bill, I was going to send you an email about an hybrid ko4, but as you popped in what do you think?

    Pat
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  21. patTTpoa
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    patTTpoa Member

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    [Nov 12, 2011]
    ^^ thanks for the info, I will be getting everything checked over.
    Lol there's not going to be any "it'll do" round here, if it needs sorting - it'll be done

    Pat
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  22. s3dave
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    s3dave TFSI Hybrid Supporter

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    [Nov 12, 2011]
    Amen....:whistle2:
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  23. Westy
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    Westy Double Dark Side! Diesel & 8P

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    [Nov 12, 2011]
    Cheers for the list matey. It's not a cheap job if you want to do it properly, even if you do all the work yourself and save on labour.
    #22
  24. slowcoach3
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    slowcoach3 Active Member

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    [Nov 12, 2011]
    Honestly darling it only cost £20 on ebay..... Its amazing what you can get! Done me good for a couple of years now. Pat where are you based in Devon?
    #23
  25. patTTpoa
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    patTTpoa Member

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    [Nov 12, 2011]
    I'm in Exeter, were abouts are you?
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  26. slowcoach3
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    slowcoach3 Active Member

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    [Nov 12, 2011]
    Mortonhampstead but I work at the Rusty Bike in Exeter so I'm in there everyday. I'm running late actually playing around on here when I should be in my kitchen! If you ever need a spare pair of hands I'd be more than happy, running out of things to do on my A3....!
    #25
  27. patTTpoa
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    patTTpoa Member

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    [Nov 12, 2011]
    Cheers dude that's good to know!
    Do you go down maccys?

    Pat
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  28. patTTpoa
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    patTTpoa Member

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    [Nov 12, 2011]
    I haven't even priced any of it up yet, I've got one hell of a sweat on just thinking about it! Lol

    No, really it's got to be done properly as it would be easy just to put the AGU lump in as it is & drive, but knowing my luck with the car so far it would go bang on the way home!

    Pat
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  29. slowcoach3
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    slowcoach3 Active Member

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    [Nov 12, 2011]
    I've never been down to maccys, didn't know anyone and had the impression it was for the younger generation ( corsa crew) if there is some VAG boys i'll make effort! God that sounds really bad. Sorry!
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  30. s3gazz
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    s3gazz Well-Known Member

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    [Nov 12, 2011]
    I picked my agu head up last Saturday got it for 70 got price and in great nik too sending it to drakes enginers should cost me about £160 for everything doin like but be werth it.

    The cams I have In mine now are worn and have marks so want to get it off looks like oil starvation or something from preveas owner just my rods now and I'll be on with my build
    #29
  31. patTTpoa
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    patTTpoa Member

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    [Nov 12, 2011]
    I was just asking as I would have popped down in my misses car, always full night times tho!
    Have seen a few VAG motors about!

    Pat
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  32. patTTpoa
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    patTTpoa Member

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    [Nov 12, 2011]
    That isn't a bad price £160 for a head service!
    I remember on a C20LET head a few years back it being best part of £200 +vat!

    Pat
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  33. s3gazz
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    s3gazz Well-Known Member

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    [Nov 12, 2011]
    I no pal well chuffed with it cannot wait to start it all after Christmas
    #32
  34. slowcoach3
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    slowcoach3 Active Member

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    [Nov 12, 2011]
    Don't want to derail your thread but I'll make the effort to sort my work/life balance out and get down there, it would be good to meet up with some fellow audi tinkerers in the area!
    #33
  35. antwan
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    antwan Member

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    [Nov 14, 2011]
    Forgot to add at least 2 or 3 oil filters (and lots of oil) and a new oil cooler.
    #34

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