2.7L Oil Pump Failures

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Originally Posted by DiscoDB

But given the effort involved in doing the job, the real question then is will the pump be good for 320,000km or 14 years if you don’t do it when doing the belts.

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Its not the actual oil pump that has the issue - it is the changing of the cam belt pulley that causes the issue.

Yes - understand fully the original issue.

The question then is once you have upgraded the oil pump, should you still change every 160,000kms as a preventative measure or wait for it to fail.

With the risk of spun bearings and a snapped crank (different issues again) - I am inclined to replace the oil pump every 160,000kms when doing the timing belt any way as the only extra cost is a new oil pump.

The oil pump will wear out and we don’t have an oil pressure gauge to know if it is deteriorating.

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Originally Posted by gavinwibrow

I must have been asleep when 2.7L Oil Pump failures have been posted. Fully aware of the D2 oil pump bolt issue.

Is this potentially applicable across the range of D3 and D4, or is it something that was actually nipped in the bud at some stage?

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Gavin, you’ll give yourself and ulcer [emoji3]

D4s are sorted - I still replaced mine when the belts were done. It’s pretty cheap. Remember I do my belts at 100k intervals.

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Originally Posted by Tombie

Gavin, you’ll give yourself and ulcer [emoji3]

D4s are sorted - I still replaced mine when the belts were done. It’s pretty cheap. Remember I do my belts at 100k intervals.

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I have read others on the UK forum also do belts and the oil pump at 100,000kms as well.

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Originally Posted by 101RRS

Its not the actual oil pump that has the issue - it is the changing of the cam belt pulley that causes the issue.

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No it's the tensioner mount on the pump casting that's the issue, crank pulley only gets removed during the pump replacement not the pulleys on the cams.

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Originally Posted by loanrangie

No it's the tensioner mount on the pump casting that's the issue, crank pulley only gets removed during the pump replacement not the pulleys on the cams.

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I thought that is what I basically said - I didn't say anything about the crank pulley but was talking about the cam belt pulleys.

For DiscoDB - if you have concerns about your oil pump then by all means change it with the cam belts but otherwise there is no need too. Likewise there is no reason to replace cam belts at 100,000km rather then 160,000km unless you think there is an issue.

Cheers Garry - I am all good. [emoji106]

I was just responding to PerthDisco why I think changing the oil pump at 160,000kms when doing the belts is a good idea regardless if you have an upgraded oil pump.

I would only do the timing belt at a lower mileage if it was over 7-8 years old or operating under arduous conditions. Makes total sense for Tombie to do at 100,000kms. In my own case this was at around 140,000kms but I did go well past the 7 year recommendation - however that is another topic.

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Originally Posted by DiscoDB

Cheers Garry - I am all good. [emoji106]

I was just responding to PerthDisco why I think changing the oil pump at 160,000kms when doing the belts is a good idea regardless if you have an upgraded oil pump.

I would only do the timing belt at a lower mileage if it was over 7-8 years old or operating under arduous conditions. Makes total sense for Tombie to do at 100,000kms. In my own case this was at around 140,000kms but I did go well past the 7 year recommendation - however that is another topic.

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Yes I can’t understand how the arduous schedule affects the belt life in same logical way it affects oil change intervals (and not to suggest it’s wrong). Agree you don’t want to go past 7 years regardless which for most drivers will be 100-120,000km in any case. More often than not the belts come off looking new and I’ve never heard of one breaking in the many interesting ways the engine can die. I’ve heard of 13 year old TDV6s on original belt so they have a huge engineering safety margin I imagine.

I did my timing belt at 10years of age and no concerns were found with it. But if operating in high temp conditions (it gets very hot in Whyalla) then the rubber would break down quicker.

Having said that - I absolutely would not recommend to anyone to try and get 10 years as the risk is too high. The last 2 years of this the D3 did very low kms and so I was prepared to take the risk.

I am also planning to replace the harmonic balancer as the rubber would be starting to breakdown after what is now 13 years. In hindsight I believe this should also be done at the same time as the timing belt.

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Originally Posted by PerthDisco

Yes I can’t understand how the arduous schedule affects the belt life in same logical way it affects oil change intervals (and not to suggest it’s wrong). Agree you don’t want to go past 7 years regardless which for most drivers will be 100-120,000km in any case. More often than not the belts come off looking new and I’ve never heard of one breaking in the many interesting ways the engine can die. I’ve heard of 13 year old TDV6s on original belt so they have a huge engineering safety margin I imagine.

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Heat soak, dust, grit. Stop / start. Cold running.
All put big stress on Rubber components and bearings.

As you rightly commented, age on rubber components is also a factor.

I would never say there’s a safety margin - like tyres - 5 years and they should be nearly done. Plenty of people making the decision to run tyres a lot longer and some pay the price.