We checked timing belt today and it was loose and way off about inch of crankshaft pulley TDC mark when camshaft locking tools inserted and slightly different on each bank, looks like it jumped couple of teeth but no visible damage to belt. Tensioner damper damper correct length for cold 136mm. Tried resetting timing but after turning engine belt become loose between camshafts and timing is off again, turning camshafts to tighten up belt moves timing back in position.
Does anybody knows what temps warm and cold is supposed to mean?
It says 136-139mm for cold and 126-129mm for warm? Is it for the ambient or engine temps? I mean You will not be working on hot engine and even if you did by the time you get to tensioning belt it will be well cooled off so what would the point be giving length for hot engine temp. When I did mine it was April and probably around 5-10C and I set damper length at 136mm and it was fine.
We did try setting it at 128mm and that looks much better belt does not come loose after couple engine turns but timing does go a bit off.
So would the cold and warm length be for ambient temp say 5-10C for cold and 20-30 for warm?
Anyway we decided to order new damper and belt and have another go in weeks time.
Belt has been changed 15k ago and markings still on belt not worn off but no information if rollers or damper were changed. Rollers look good, no play in them, does not feel dry and rotate freely so we will leave them but change damper and belt.
If anybody know better about temps let us know otherwise we will try setting it for cold with new belt and damper and if that does not work then set it for warm and leave it like that.
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