Disaster on my 760T - Page 2

rogerthechorister · Sep 21st, 2020, 17:15

Garage has now decided that it is more likely to be water pump than block - it seems to me that if it were frost damage (a) it should have manifested earlier in the year and (b) the water pump would have acted like a freeze plug.

So step 1 is for garage to put in new water pump (from Volvo but pattern with cast impeller) - I think owner may do it himself this time to make sure the well known issues with the rubber seals on top and at rear are avoided).

If there is still a problem I will get her trailered (£60) to one or the other of local garages that owe me favours for fresh diagnosis.

If it does turn out to be block then yes I agree B230FK and either swap the whole head with Garrett or just the A cam (I think it is an A cam, or maybe hunt for a VX3) and probably keep the ET manifold for simplicity and anyway 90+ manifolds are almost all cracked by now - and are swines to get well welded. And then an MBC.

Yes the ET should run nice petrol (4 star) and I usually do, so that might be the limiting factor for overboost.

I'll be back.

Laird Scooby · Sep 21st, 2020, 17:38

Cancel the Volvo water pump and INSIST on an SKF pump - much better quality and less likely to fail a few months down the road!

Bit concerned at the apparent guesswork going on at that garage though.

rogerthechorister · Sep 24th, 2020, 12:25

It did indeed turn out to be the waterpump! And the Volvo pattern one that arrived looked quite tasty to me, cast impeller and all. Test drive maybe later. The thought process of the mecco who actually did the job first was perfectly logical, I went right through it with him, and he even seemed to know about stress concentration factors.

But I will probably need fresh turbo-to-downpipe studs - they are the reason the turbo tends to wiggle loose (a well known problem) and they HAVE to be Volvo, so I will put them in stock for next time. Dratted shame that it's a turbo-off job to change the studs though. Parts a fiver, labour loadsamoney!

Text steps will be to put dye in to find out where the aircon is leaking - and I may have to get custom aircon pipes made, the 940 ones I have do not fit (as I rather suspected) oh and to get a proper Volvo thermostat to help the heater keep me warm over winter.

I've had a huge list of bits done at the same time so I now await a very grown up William (big bill). And after a week or so I can see if the 17 mpg has improved! And the intercooler was OK after all so I have a spare now in stock for future reference.

Today is a GOOD day!

griston64 · Sep 24th, 2020, 12:41

Quote:

Originally Posted by rogerthechorister

It did indeed turn out to be the waterpump! And the Volvo pattern one that arrived looked quite tasty to me, cast impeller and all. Test drive maybe later. The thought process of the mecco who actually did the job first was perfectly logical, I went right through it with him, and he even seemed to know about stress concentration factors.

But I will probably need fresh turbo-to-downpipe studs - they are the reason the turbo tends to wiggle loose (a well known problem) and they HAVE to be Volvo, so I will put them in stock for next time. Dratted shame that it's a turbo-off job to change the studs though. Parts a fiver, labour loadsamoney!

Text steps will be to put dye in to find out where the aircon is leaking - and I may have to get custom aircon pipes made, the 940 ones I have do not fit (as I rather suspected) oh and to get a proper Volvo thermostat to help the heater keep me warm over winter.

I've had a huge list of bits done at the same time so I now await a very grown up William (big bill). And after a week or so I can see if the 17 mpg has improved! And the intercooler was OK after all so I have a spare now in stock for future reference.

Today is a GOOD day!

Did you get water pump from main dealer ? I'm going to replace mine at next coolant change

Cheers

Laird Scooby · Sep 24th, 2020, 12:50

Quote:

Originally Posted by griston64

Did you get water pump from main dealer ? I'm going to replace mine at next coolant change

Cheers

I might be wrong Mark but i think main dealers only supply the genuine Chinese Volvo pumps these days, you have to search elsewhere for the SKF pumps.

griston64 · Sep 24th, 2020, 13:19

Quote:

Originally Posted by Laird Scooby

I might be wrong Mark but i think main dealers only supply the genuine Chinese Volvo pumps these days, you have to search elsewhere for the SKF pumps.

Funnily enough you can buy direct from SKF. Think my one was around 70 euro's. Same pump form SKF is availacbvle on the plethora of car spares websites online for £35 ?????

The genuine Volvo one had made in the UK on it ???

All very strange

barkster1971 · Sep 24th, 2020, 14:08

Seems to me they dont know their arse from their elbow. i told you it was the pump. i have a brand new one here if you want it.

griston64 · Sep 24th, 2020, 14:12

Quote:

Originally Posted by barkster1971

Seems to me they dont know their arse from their elbow. i told you it was the pump. i have a brand new one here if you want it.

How much ?

barkster1971 · Sep 26th, 2020, 18:40

I give you special price. £60 posted.

griston64 · Sep 26th, 2020, 19:29

Drat I've bought one from the dealer now

Sep 21st, 2020, 17:15	#11
rogerthechorister Rogerthechorister Last Online: Dec 16th, 2023 02:15 Join Date: May 2006 Location: Rochester	Very helpful all of you. Garage has now decided that it is more likely to be water pump than block - it seems to me that if it were frost damage (a) it should have manifested earlier in the year and (b) the water pump would have acted like a freeze plug. So step 1 is for garage to put in new water pump (from Volvo but pattern with cast impeller) - I think owner may do it himself this time to make sure the well known issues with the rubber seals on top and at rear are avoided). If there is still a problem I will get her trailered (£60) to one or the other of local garages that owe me favours for fresh diagnosis. If it does turn out to be block then yes I agree B230FK and either swap the whole head with Garrett or just the A cam (I think it is an A cam, or maybe hunt for a VX3) and probably keep the ET manifold for simplicity and anyway 90+ manifolds are almost all cracked by now - and are swines to get well welded. And then an MBC. Yes the ET should run nice petrol (4 star) and I usually do, so that might be the limiting factor for overboost. I'll be back. __________________ B234F estate, H reg 100k miles. RIP melted B280E. 760T estate, F reg 133k miles. 940 Sport M90 estate, N reg 170k miles. 940 Sport M90 estate, N reg 100k miles, ex Lovejoy. 960 Estate, N reg, 56k miles, blown up and sold.

Sep 21st, 2020, 17:38	#12
Laird Scooby Premier Member Last Online: Yesterday 23:44 Join Date: May 2012 Location: Lakenheath	Cancel the Volvo water pump and INSIST on an SKF pump - much better quality and less likely to fail a few months down the road! Bit concerned at the apparent guesswork going on at that garage though. __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

Sep 24th, 2020, 12:25	#13
rogerthechorister Rogerthechorister Last Online: Dec 16th, 2023 02:15 Join Date: May 2006 Location: Rochester	Hooray! It did indeed turn out to be the waterpump! And the Volvo pattern one that arrived looked quite tasty to me, cast impeller and all. Test drive maybe later. The thought process of the mecco who actually did the job first was perfectly logical, I went right through it with him, and he even seemed to know about stress concentration factors. But I will probably need fresh turbo-to-downpipe studs - they are the reason the turbo tends to wiggle loose (a well known problem) and they HAVE to be Volvo, so I will put them in stock for next time. Dratted shame that it's a turbo-off job to change the studs though. Parts a fiver, labour loadsamoney! Text steps will be to put dye in to find out where the aircon is leaking - and I may have to get custom aircon pipes made, the 940 ones I have do not fit (as I rather suspected) oh and to get a proper Volvo thermostat to help the heater keep me warm over winter. I've had a huge list of bits done at the same time so I now await a very grown up William (big bill). And after a week or so I can see if the 17 mpg has improved! And the intercooler was OK after all so I have a spare now in stock for future reference. Today is a GOOD day! __________________ B234F estate, H reg 100k miles. RIP melted B280E. 760T estate, F reg 133k miles. 940 Sport M90 estate, N reg 170k miles. 940 Sport M90 estate, N reg 100k miles, ex Lovejoy. 960 Estate, N reg, 56k miles, blown up and sold.

Sep 24th, 2020, 14:08	#17
barkster1971 VOC Member Last Online: Apr 23rd, 2024 16:56 Join Date: Jun 2009 Location: Swineshead/Salford	dude Seems to me they dont know their arse from their elbow. i told you it was the pump. i have a brand new one here if you want it. __________________ new engine! new car!

Sep 26th, 2020, 18:40	#19
barkster1971 VOC Member Last Online: Apr 23rd, 2024 16:56 Join Date: Jun 2009 Location: Swineshead/Salford	price I give you special price. £60 posted. __________________ new engine! new car!

Sep 26th, 2020, 19:29	#20
griston64 Premier Member Last Online: Apr 21st, 2024 14:28 Join Date: Jul 2012 Location: Lenzie	Drat I've bought one from the dealer now __________________ V70 D5 SE Geartronic 215bhp Saville Grey 2012MY 940 LPT Manual 1996 740 SE 1990

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