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Title: Thema 16v timing belt change Post by: m tulloch on 31 January, 2018, 10:07:44 PM Does anyone have any Thema workshop manuals which show how to change the timing belt? Particularly after torque values for the tensioner, etc and whether the crank pully bolt thread is normal or reverse thread to loosen.
Car's a 1989 16v N/A. Thanks in advance. Matt. Title: Re: Thema 16v timing belt change Post by: fay66 on 31 January, 2018, 10:48:57 PM Mick I've pm'd you.
Brian 8227 8) Title: Re: Thema 16v timing belt change Post by: Angle Grinder on 02 February, 2018, 12:30:35 PM I've written a piece for the Thema Dedra Consortium that explains this procedure, But Brian may have already talked you through.
It's not too hard, but it does need a reasonable degree of mechanical experience and self-belief. Title: Re: Thema 16v timing belt change Post by: fay66 on 02 February, 2018, 10:41:33 PM I've written a piece for the Thema Dedra Consortium that explains this procedure, But Brian may have already talked you through. Mike I've not been contacted up to now and i would suggest your write up would be more use than what I can offer.It's not too hard, but it does need a reasonable degree of mechanical experience and self-belief. Brian 8227 8) Title: Re: Thema 16v timing belt change Post by: frankxhv773t on 03 February, 2018, 12:11:01 AM I don't know if the attached counts as approved procedure.
Title: Re: Thema 16v timing belt change Post by: DavidLaver on 03 February, 2018, 04:51:51 PM Can't remember that from the special tools catalogue ;) Title: Re: Thema 16v timing belt change Post by: lancialulu on 03 February, 2018, 09:29:07 PM I have such a tool ( a pair actually) to compress suspension springs. Always like to see stuff used laterally.
Title: Re: Thema 16v timing belt change Post by: Angle Grinder on 05 February, 2018, 12:08:02 PM That's actually my picture. I slightly modified the spring compressor's "Fingers" by cutting a step in them with an angle grinder so that they could get a grip on the teeth of the balancer shaft pulley.
If anyone has a better idea I'm all ears, but the original tool is dam hard to come by. Title: Re: Thema 16v timing belt change Post by: Dikappa on 06 February, 2018, 03:23:29 PM Definitely replace the bearing sited behind the front balance-shaft pulley, as I've seen quite a few where this one was 'forgotten', resulting in a locked up bearing running in opposite direction of the timing belt, and 'eating' right through it...
Now from the foto's I conclude this will be intended, but I thought an extra word of warning would'nt hurt. Title: Re: Thema 16v timing belt change Post by: Angle Grinder on 07 February, 2018, 02:15:47 PM And this is a picture of the same engine after fitting:
New water pump New Crankshaft oil seal New Balancer shaft oil seal New timing belt New timing belt tensioner / bearing New bearing for timing belt guide pulley New Balance belt New balance belt tensioner / bearing Plus replacing all the auxiliary belts afterwards. A good days labour, but well worth the effort. Title: Re: Thema 16v timing belt change Post by: frankxhv773t on 07 February, 2018, 04:56:12 PM Angle Grinder, I hope you can accept imitation as the sincerest form of flattery.
Title: Re: Thema 16v timing belt change Post by: robinsonlancia on 18 February, 2018, 09:36:53 PM Just in the process of doing this myself, in regards to the use of the spring compressor, good idea, but if you have an impact gun (or can get hold of one) this bolt comes loose quite easily with the old belt locking it all up and you won't need to run the risk of anything slipping and being damaged.
Crank pulley bolt is left hand thread, so clockwise to undo! Enjoy, Marcus |