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Number of teeth on timing belt 2,7 HDI? |
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jenskuhn
 
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  Member No: #2756
Location: Oslo |
Gonna do a timing belt change and I see that there are different sets around, either with 85 teeth or 195 teeth and different belt widths. I have a 2007 2,7 HDI. How many teeth does the original belt have? Any recommendation is appreciated. | ||
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gmerry
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   Member No: #21
Location: Scotland |
Hi Jens, the camshaft timing belt is the long one (195? teeth) that times the inlet camshafts to the crankshaft. The shorter belt just powers the injection pump from the bellhousing end off a camshaft. regards |
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gmerry
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Member No: #21
Location: Scotland |
SKF Kit VKMA03261 - Click Here - provides both belts and all the tensioners you need for camshaft and injection pump (you just need to add in a water pump) This is assuming a 2.7 HDi regards |
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jenskuhn
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Member No: #2756
Location: Oslo |
gmerry wrote ... Hi Jens, the camshaft timing belt is the long one (195? teeth) that times the inlet camshafts to the crankshaft. The shorter belt just powers the injection pump from the bellhousing end off one the camshafts. regards Aha! That explains it. As I understand the timing belt should be changed every 10 years or 160k. It is recommendable to change the injection belt simultaneously or is that a whole different thing altogether? |
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gmerry
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Member No: #21
Location: Scotland |
Sorry, I have no idea what the service interval is for the injection pump belt. The SKF waterpump reference is VKPC83261. regards |
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jenskuhn
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Member No: #2756
Location: Oslo |
gmerry wrote ... Sorry, I have no idea what the service interval is for the injection pump belt. The SKF waterpump reference is VKPC83261. regards I dont get it, the water pump is a part of the accessory belt assembly on the 2,7hdi. Is there another one? |
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gmerry
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Member No: #21
Location: Scotland |
I think that the idea behind replacing the waterpump (when doing the timing belt), is that the work in stripping down the non drive end of the engine is the same for both jobs. As far as I know, its not possible to replace the waterpump without removing the timing belt. regards |
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Hattershaun
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 Member No: #320
Location: Bedfordshire, UK |
I've just had this whole job done on a 2.7hdi that I have. Cambelt, tensioner and two idlers Water pump & new coolant Fuel injection pump belt & tensioner. Auxiliary belt (for alternator, aircon pump & water pump) I bought a kit of parts containing Cambelt & fuel pump belt, all the idlers & tensioners, then separately bought a water pump & auxiliary belt. Whilst I believe it's possible to change the water pump without removing the cambelt, both are at the same end of the engine & it's much easier to replace all the parts whilst dismantling there. The injection pump belt is at the other end of the engine. Whilst I've not seen a recommended change interval (it's not timed to the camshaft or crank shaft, so failure of the belt won't damage any other components), I'd suggest you change that belt too. My mechanic has changed many fuel pump belts (at the same time as the cambelt) and virtually all of them have shown serious signs of degradation, with cracks between the teeth. My car was at 75,000 miles and 11 years old. One big job = peace of mind. |
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Cisco
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 Member No: #1429
Location: Glasgow |
Haven't replaced the water pump on my car yet though intending to do it this summer. Pretty sure it can be replaced simply though, after the pump pulley is removed. No need to remove timing belt/covers etc AFAIK. Good luck with it Frank |
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Cisco
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Member No: #1429
Location: Glasgow |
Hey Guys, Replaced the waterpump today. As I thought, the pump can be replaced without disturbing anything other than removing the serpentine belt and the air tube from intercooler to plenum, which is always a pain. Job was straight forward except that the pump didn't really want to leave the car and was pretty well welded in after 123k miles. I had to revert to a crowbar to free it up. New pump was a Valeo unit and fitted without issue after I had cleaned up the housing. ATB Frank  |
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gmerry
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Member No: #21
Location: Scotland |
Frank, good to know that you have managed to replace the water pump without any dismantling (other than belt and intercooler to plenum air hose. Was the old pump leaking, rattling or making any noise or was the change just precautionary due to age? Certainly, the Valeo pump rotor looks to be well made compared to what was removed (probably an investment casting versus a pressing for the old). I couldn't see any machining marks for balancing on either but that might be on the pulley side not shown in your photos. Do you think what you have removed was the original? Certainly the Valeo pump is considerably cheaper than the SKF and looks to be well made. I'll probably get one of these myself. thanks |
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Cisco
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Member No: #1429
Location: Glasgow |
Hi Gordon, There was no reason to replace the wp other than the 123k miles, plus I had seen a pic of a pump posted on FB by the Dutch C6 specialist showing the pump vanes worn away to nothing on a similar mileage 2.7 car. Got me thinking  I have the full history on my car. The pump I removed was the original pump afaik. ATB Frank |
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ul9601
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Member No: #1975
Location: Auckland |
Doesn't look like there isn't much vane wear on yours though? | ||
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