Monster MotorsportEM Tuning
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  1. #1
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    Help!!! audi a3 1.8t 1998 (aug). No compression on cylinder 1

    Iv been told that this is the valves but worse case senario its the pistons!!
    Just want to know if its worth getting it fixed, or maybe even upgrade while the engines apart. iv seen a cylinder head refurb for Ł350 but could i do a timing belt on my own?

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  3. #2
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    come on people im new to this website and i would really appreciate some help. If i buy a new head what else should i replace/upgrade?

  4. #3
    DaveA3's Avatar
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    if ur changing the belt u wanna do the tensioner and the water pump at the same time to save on future labour costs.

    cant really advise on the engine stuff im afraid mate. is that Ł350 all in?

    Audi A3 1.8T Sport (AGU) - 2000
    Engine: Carbonio CAI/Jetex JR Hybrid Induction, Forge 007p DV, Forge TIP, Longlife S/S Custom Exhaust system, R-Tech Stage 1 Remap, Creation Motorsport Boost Pipe Kit.
    Exterior and Chassis: 18" Cades Tyrus, Euro Wipers, low on JOM Coilovers, Eibach Front & Rear ARB's, Black Angel Eye Headlights, 6000K HID's, S3 Brakes.
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  5. #4
    666markyboy's Avatar
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    You really need to get the engine stripped first so that people can make informed sugestions... i meen the cam belt could have slipped , a piston could have holed ,, rings could have shattered, a valve could have dropped causing all the others ... lots of things could have happened... untill you strip it , who knows
    1999 A3 Quattro 1.8T Pics >>HERE
    2002 A4 Avant quattro 1.9 TDi

  6. #5
    s3dave's Avatar
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    You can pour some oil in the offending piston and pressure test again if the pressure alters there is a problem with piston/rings

  7. #6
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    So it looks like I'm gonna be taking off the head, but while I'm there is it worth upgrading anything else apart from the valves? I will be getting a cambelt kit I think it comes with water pump anyway. Is a cambelt especially difficult to fit on an a3 1.8t 1998 fwd?

  8. #7
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    Not too hard, I'm assuming it's the same as the S3 so runs around the engine mount which is a bit of a pig to get off but with the head off you've a bit more room. If you aren't replacing the vibration damper you'll have to get a bit of 5mm threaded bar a nut and a big washer to compress it. This is most fun to try and get on! I changed the damper but when I pulled the pin I found I was one tooth out so had to compress it again to alter the timing, still got the scabs on my knuckles now.

  9. #8
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    no, front wheel drive so the cambelts at the side in front of the driver. Any suggestions for mods while iv got the head off? Maybe a KO3s turbo or uprated valves???

  10. #9
    s3dave's Avatar
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    Quote Originally Posted by dandos View Post
    no, front wheel drive so the cambelts at the side in front of the driver. Any suggestions for mods while iv got the head off? Maybe a KO3s turbo or uprated valves???
    same as the s3, if your after power maybe a ko3 hybrid?

 

 

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