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  1. #1
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    Default cambelt troubles

    Hi,

    A quick word from me. Yesterday my Q was towed home....
    The engine suddenly stopped en died on me
    Got the road side assistance on scene en he quicly discovered it was a cambelt problem.
    The sad pictures going home the unexpected way.....



    Need to find out what the problem is and if there is any further damage to the engine. It looks like a problem with the tensioner.... So far, the counter stops at 290.8xxKM
    What is really a shame.... to end this way There is a lot more to ride with this original engine, still very strong in power!

    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  2. #2
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    Sorry about that. I hope you'll manage that quickly, wish you good luck, Marc.
    (Btw...you have to forgive him at least for the way he looks)

    Chris.
    Alfa Romeo 155 Q4 WB '95
    Alfa Romeo per sempre !

  3. #3
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    Bad luck

    How long since the last belt/tensioner change?

  4. #4
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    Bad news Hope the damage isn't too great!

    (Reminds me...my belts are due too.)

    wrinx
    My Q4 in the Garage

    www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk

  5. #5
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    Damn.. and on a very wet day too! I hope that It works out ok.. let us know!

    JimN~

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    Unhappy

    Feelin sorry for you
    Lead follow or get the flock out of the way

  7. #7
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    Sorry to hear about the car Marc, fingers crossed that its nothing too serious.
    1994 Alfa Romeo 155 Q4: Dozeing in the garage.
    2009 Audi A4 tdi: Everyday drive.
    1994 Alfa Romeo 155 , 1995cc Std Standard Black

  8. #8
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    Quote Originally Posted by AlfaJack View Post
    How long since the last belt/tensioner change?
    The belt, tensioner, water pump and everything what is needed for a cambelt change is done in jan/feb of 2007 and has lasted about 30.000km. If you look at the cambelt, it looks like new

    Hopefully I find some time to lift the valve cover en start measuring the clearance of the valves, to find out if the valves hit the pistons.
    If no valve(s) are bent, the car will be up and running very soon.

    Otherwise i have no clue. I probably suspend the car and leave it for a couple of years to build a new, very powerfull engine and transmission revision.

    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  9. #9
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    Yesterday I took the time to remove the valve cover and do some measuring.
    My first reaction was?? f*ck this head is gone, because the inlet valves of the last cylinder where fully open. I didn?t know what the position of the pistons where, butt they where all in the same position after examining. I had to push the car a bit forward and backward in fifth gear to get all the right positions of the camshaft for each cylinder.

    After measuring the valve clearance I got the following results:
    Inlet from left to right: 0,35 & 0,40 0,45 & 0,40 0,35 & 0,40 0,45 & 0,40
    Outlet from left to right: 0,60 & 0,45 0,50 & 0,40 0,45 & 0, 45 0,45 & 0,45

    This is really not a bad result and looks like no valves are bent or hit the pistons. The only thing I need to do right now is a cylinder pressure test to find out if nothing is wrong. If this result is also good, then there?s nothing in the way for another complete cambelt change and I am on the road again. So my Q4 is going to the garage in the next couple of weeks to do the last checks and probably the cambelt change.

    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  10. #10
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    I'm a little bit confused over your posts here, you haven't said what has stopped the engine? Has the cambelt broken or slipped around the pulleys?

  11. #11
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    what are the chances of valva damage with the low CR a turbo engine like this has? Low CR after all means there's more room left above the piston at TDC....

  12. #12
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    There is a little baby brother or sister coming??



    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  13. #13
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    Quote Originally Posted by Evodelta View Post
    Has the cambelt broken or slipped around the pulleys?
    The cambelt isn't broken. I think there is a problem with the tensioner, as mentioned in my openings post. The cambelt is loose and probably slipped a view positions. This is yet to be determined by my Alfa specialist. When I know what was causing the problem, i'll post it here

    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  14. #14
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    Default

    Oh I see, thanks, good luck and please let us know what happened.

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    Default

    and best wishes to the mother

  16. #16
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    Quote Originally Posted by cuore_sportivo_155 View Post
    and best wishes to the mother
    That would be the factory where the Q4 was produced
    Bought another Q4 from 1992 today, with only 130.000KM
    Hopefully I have it at home this weekeind and shall post some pictures.

    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  17. #17
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    Quote Originally Posted by Brul(tm) View Post
    That would be the factory where the Q4 was produced
    Bought another Q4 from 1992 today, with only 130.000KM
    Hopefully I have it at home this weekeind and shall post some pictures.

    Greetings,
    Marc
    How much ? Cant find any on sale these days ...
    155 Q4 -92 / 155 -94 DTM Edition nr 187

  18. #18
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    There are two on www.ebay.it at the moment.

    THIS is one...bit pricey imho.

    wrinx
    Last edited by wrinx; 22-01-08 at 19:29.
    My Q4 in the Garage

    www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk

  19. #19
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    Quote Originally Posted by K.Kotkas View Post
    Cant find any on sale these days ...
    I was very lucky to find this one. Hopefully i've got the car at home.
    This was a bargain So i feel very very lucky

    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  20. #20
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    Well, sad news. It's over.....




    The end..... after almost 291.000KM without any revision of the engine.



    Greetings,
    a very sad Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  21. #21
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    Bugger How many miles was on this belt now? Did the tensioner seize?

    What is the plan? Engine transplant from the spares Q4?

  22. #22
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    Looks like a seized tensioner which stripped the teeth on the belt?

    Strange that one so new should fail

    wrinx
    My Q4 in the Garage

    www.alfaromeo155.co.uk ............................ □□□-V-□□□ .................................. www.ilmostro.co.uk

  23. #23
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    Need to look in to the administration to find out the exact distance, but it is somewhere between the 20.000 and 25.000 km and approximatly 1 year old. The tensioner didn't "bite of the teeth", it's a smooth one

    What happend in januari this year seems the be getting a bigger mistery at this moment. The only way to find out, is to take the engine appart. Starting with removing and inspecting the cams/head and everything that has to do something with the belt. The belt looks way to tight. I am getting someone over for a second opinion about the work done on the belt and find out if it's a human failure (if possible).

    Even if the engine is easy to repair I have no confidence I can really rely on this engine while letting the Q out on the roads, so I take my loss. The plans are te rebiuld a 0KM engine with balanced and forged high performance parts. This means the Q will be off the road for quit a while. I'll try to do as much as possible on my own and friends I met in the Netherlands.

    The engine from the spare Q4 is not an option also, this one needs a complete rebuild too This engine hasn't ran for 9 years. In these 9 years this engine ran only a view times a year to keep everything "running". So all the seals an bearings need to be replaced, especially the belt. The whole car was ment as spare parts when the moment arrived my Q4 broke down. And I think it is the best and savest option to say my engine has had its best time.....

    For the time being I am busy with a nice and special 155. When everything works out I let you guys now what kind of 155 it is, its nice special one

    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

  24. #24
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    Quote Originally Posted by Brul(tm) View Post
    Need to look in to the administration to find out the exact distance, but it is somewhere between the 20.000 and 25.000 km and approximatly 1 year old. The tensioner didn't "bite of the teeth", it's a smooth one
    I thought the tensioner may have seized causing the belt to be stopped on that part but I guess it would just slip and get hot.

    Another powerful Q4 in the (re)building then

  25. #25
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    Quote Originally Posted by AlfaJack View Post
    Another powerful Q4 in the (re)building then
    That is the plan I sorted out a lot of the components I think I need or will be using. Only thing I haven't figured out are the rods.

    In the meanwhile I am buying a 155 3.1 12V tuned bij Savali

    Greetings,
    Marc
    In a world full of compromise...
    ...some don't.
    ___________________________
    Opel Astra Sports Tourer 110HP 2017
    Alfa 147 1.6 16V 120HP
    Alfa 155 Q4 2.0 16V turbo

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