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Cam belts

It's that time when I need to change the cam belt. But I've been looking at parts and there are 2 for the gt jtd. One with 198 teeth and 1 with 199 teeth. How do I know which one I need. And secondly what are the symptoms of having the timing out by as little as 1 tooth???????
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Originally Posted by Jaredgt View Post
It's that time when I need to change the cam belt. But I've been looking at parts and there are 2 for the gt jtd. One with 198 teeth and 1 with 199 teeth. How do I know which one I need. And secondly what are the symptoms of having the timing out by as little as 1 tooth???????
You are correct to be concerned about the belts, I believe the 198 tooth belt is fitted to the CF3 engine and the 199 tooth belt is fitted to the CF4/5 engines. It can be difficult to know which engine you have, especially on 2005/06 cars as this was around the time of the changeover to the CF4 emissions standard. Calling a specialist such as Autolusso or AlfaWorkshop is recommended as they will be able to tell from your VIN number which engine you have and provide the genuine parts you need, and it's worth buying the genuine stuff. Also, JTD waterpumps should be changed with the timing belt as they are known to seize and make you say bad words, for an extra fifty quid to replace the pump you can prevent a pricey engine rebuild.

Engine components and related parts for the Alfa Romeo GT 1.9 16V models. - Autolusso New Alfa Romeo Parts
Alfa Romeo GT Cam Belt Kit

Now: 156 GTA | Quaife LSD | 330mm Brembos

Then: 147 Sport Q2 | Autolusso Remap | Swirl Flap & EGR Delete | Mocal Oil Cooler Kit | JTD Performance FMIC Kit | High Flow Elbow | Wizard Downpipe | PF Pads & 5.1 Fluid | Autolusso Braided Brake Lines | MTech Short-Shifter | Autolusso Silicone Turbo-to-MAF Hose | Refurbed Q2s
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The 198 toothed belt is for the Euro 3 spec engine and the 199 is for the Euro 4. Imy be corrected but the Euro 4 engines have (the dreaded) swirl flaps fitted on the intake manifolds, the euro 3 engines don't. My 156 16v is a euro 3 and has no swirl flaps and uses the 198 toothed belt.

If you can have a look at your engine and if you have the swirl flaps on the intakes then i'd say you have euro 4 engine but i'd still call a specialist to confirm.

When your doing the belt its best to change pulley/tensioner/waterpump and fit a new auxillary belt too
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