The definitive 2 litre twin spark cambelt replacement thread - I hope! - Alfa Romeo Forum
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The definitive 2 litre twin spark cambelt replacement thread - I hope!

Hi all

I've been looking through all the existing threads on cambelt replacement for the 2 litre twin spark engine. I've found a lot of great advice - thanks all!! - but I'm trying to get a handle on the definitive requirements. I'm not just asking for a decent garage to do the job as the car is joint owned by myself and my brother in law, a professional mechanic. He'll be doing all the work and taking his time to get it right. Hopefully the thread will be useful for others too.

I guess "definitive" will be dependent on the age of the car and service history as there appear to be some differences between earlier and later engines... So below is a description of my specific car and what I understand from other threads needs doing. If anyone finds any mistakes in what I've written, please correct it.

Car: 51 plate 147 with 2.0 ts engine, covered 63,000 miles. As the engine is pre-2004, I guess tensioners are plastic not metal. Majority service history but no mention of any belt, pump, tensioner or bearing replacement.


So this is what I think needs to be replaced:
cambelt
cambelt tensioner
cam cover gasket
idler pulley - is this the same as the "idle bearing"?
balance shaft belt
balance shaft belt tensioner
cam variator
waterpump
alternator belt
alternator belt tensioner


A few questions about the above:
1) Some posts refer to "tensioners", others to "pulleys" and others to "bearings", are these the all same?
2) Which of the above tensioners/pulleys should be replaced with metal versions if the existing ones are plastic?


Other work which should be done at the same time:
change coolant
cleaning the variator solenoid housing


OK, all corrections please! I'll duck for cover as you laugh at my lack of knowledge
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Do you know how many variants of the 2.0TS there are?
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(Post Link) post #3 of 9 Old 30-09-10 Thread Starter
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Quote:
Originally Posted by Smaky View Post
Do you know how many variants of the 2.0TS there are?
Hi Smaky

I refer you to my original post: OK, all corrections please! I'll duck for cover as you laugh at my lack of knowledge

Should I duck now?
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tensioners are steel now, the plastic ones almost bankrupted Alfa (i.e. Fiat)
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I had the same issue too, not knowing what parts to purchase before diving into the task.
I live in Sydney, but got the parts from the UK - Alfa Romeo Parts and Alfa Romeo Spares from EB Spares - Specialist Alfa Parts Dealers
I purchased the following for the Alfa 147 2 litre TS:-

Cambelt - 17pounds
Cambelt Tensioner - 48pounds
Idler - 24pounds
Balance Belt - 20pounds
Balance Belt Tensioner 32pounds
Camshaft locking tool 28pounds (Glad I purchased this)
(Cam cover gasket - I purchased locally in Sydney)

My keyboard does not have the pound symbol only the $ dollars.

I decided not to purchase a water pump at the time.

I also needed a guage to ensure Top dead centre, I had a guage but I got it modified by making use of an old spark plug and drilling the centre out.

Just take your time doing it.

Gary
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@rarebear - thanks for the advice.

@chrisfromsydney - thanks too. Looks like you know where I'm coming from - there are so many posts with good info about what parts to change along with the cambelt but I couldn't find anywhere that listed them all. And when you're trying to piece together info from different posts, there's always the chance you've missed something. Good info about the top dead centre and yes, we will be taking all the time we need...
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Last edited by Spider95; 24-01-17 at 15:55.
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Hi guys just started replacing my two litter twin spark timing belt kit and I bought 3 different brands of tensioner (all litens) inside, and they all tension the belt wrong.
Please watch the movie in the link and tell me if this is OK, with the original it doesn't does this and the spring has twice the strength.
I used all the factory tools and its not the first time I do this.


https://youtu.be/BsdM3xFs31E

Regards
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As said in your other thread, the captive bolt is the wrong diameter (too small) for that type of tensioner, or it's the wrong tensioner for that particular 2.0TS. So the tensioner is moving around on the bolt.
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