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02 V70 water pump leak

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nthnnxn
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02 V70 water pump leak

Post by nthnnxn » Sat Jan 23, 2016 6:40 am

Just got an 02 V70 T5, and the water pump is leaking. 158k. Last tbelt/tensioner/idler was done at 100k. Tbelt looks great...Serp belt needs a swap... Doesnt appear to be any oil leaks (on that side anyways).
So do I replace water pump/serp belt, and keep tbelt? Or swap both belts and Water pump?

Thanks
Nathan

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Re: 02 V70 water pump leak

Post by abscate » Sat Jan 23, 2016 6:53 am

You are one halfway through the TB. Idler. Tensioner cycle.

DiY? Just do pump

Paying someone? Replace all four components
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Re: 02 V70 water pump leak

Post by scot850 » Sat Jan 23, 2016 7:35 am

For the cost, if the timing belt has been wet with coolant, and the potential risk that may bring with premature failure, I'd replace that too. So I agree with abscate, with the exception of adding a new timing belt.

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Re: 02 V70 water pump leak

Post by JeffHicks » Sat Jan 23, 2016 8:33 am

I've found that replacing the timing belt is fairly easy on these Volvos, so replacing it another time is no big deal.

However, you're already in there. You already have all the components off. For the extra $50 for a new belt, is it worth NOT doing it?
1989 240 Wagon, 1999 V70 Base, 2002 XC70, 2005 V70 T5

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Re: 02 V70 water pump leak

Post by oragex » Sat Jan 23, 2016 2:57 pm

Obviously they put aftermarket items at 100k, the belt, pulleys and the pump. While some aftermarket belts and pulleys seem to last, aftermarket water pumps are much of a gamble. Try to figure out what make the belt and the tensioner&roller are, if it's some cheapo brand, better replace them as well. For the pump, by all means go with either Aisin or original Volvo. Belts&pulleys Gates kits seems ok.

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Re: 02 V70 water pump leak

Post by sparky65 » Sat Jan 23, 2016 8:00 pm

I don't really care when the TB was done last. If I didn't do it myself, I don't trust the work. I was checking the belt, idler and tensioner on mine that had supposedly been done less than 25K before I bought it. The idler bearing was already shot. I put a Gates set on and the belt wandered like a snake. Put a Conti on and it was fine. The idler and tensioner are probably higher failure rate items than the actual belt is, so definitely go with quality parts for these.

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Re: 02 V70 water pump leak

Post by nthnnxn » Wed Jan 27, 2016 3:34 pm

Thanks for all the input! I Already changed serp belt. I Will keep Current Tbelt and only swap out the water pump.

Any special directions for this repair? Normal tbelt removal/replace process? Without the camlock tool. Whats the best way to keep the cams "in position"?

Thanks

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Re: 02 V70 water pump leak

Post by abscate » Thu Jan 28, 2016 5:36 am

With CVVT you have to preload the cams when doing a belt change, search threads for the procedure.
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Re: 02 V70 water pump leak

Post by IdahoBob » Wed Feb 03, 2016 10:17 pm

Definitely lock the cam gears, to keep them from wandering while you work. You can rent/borrow a cam lock at most of the major chain auto parts places, but you'll also need to replace (new parts) the covers that you remove to put the cam lock on. I've done 5 of these now, and my method is to go to the hardware store and buy a 24" inch X 1" piece of steel flat bar. Cut two pieces off, one a bit under 3", the other about the same. Drill a hole in the middle of both pieces. Get a 4" bolt and matching nut. Pass bolt through both holes, affix nut. You now have a jig that you slide between the cam gears BEFORE you remove the belt. Will look something like: O=O with the "O's" being the cam gears and the "=" being the tool you made. IPD used to sell something like this. Works great. Last related tip: take the bag you'll keep this in, put the ignition key in it, and then put the bag with key in your glove box. When you're all done, if you go to get the key out of the bag, and you don't have the tool in your other hand, to put it in the bag when you take the key out....guess where you left it. Go remove it before starting the engine.

The Aisin water pump is the Volvo water pump. One of the parts houses (IPD, I think) sells the Aisin. When you inspect the part you can see where someone at the Aisin factory ground the Volvo logo off the die before they cast the generic Aisin pump. The only pump I've seen leaking was one of the chinese-made ones installed by a pro euro mechanic in Boise. That same mechanic installed the chinese tensioner and idler. If you look at the springs and other parts of these replacement items, you'll see that the springs are thinner, the bearings a bit wobblier. Go with the OEM or genuine Volvo part.

Oh, and get replacement bolts for the water pump, the ones with the sealant already on them. The bolt that holds on the pump actually passes into the water jacket around your engine. Without the gooped bolts to seal the holes as they go on, then coolant will leak out around the bolt. And yes, you could re-goop your old bolts, but they're kind of soft steel, and how many hours are your going to spend digging out the remains of a broken bolt (in a place that you can barely get tools in front of) if one snaps. How soft does steel maybe get after hold-cold cycling for 115,000 miles?

I like the Continental belts. They may be the OEM supplier; but the belts are good.

Happy Motoring!
Idaho Bob
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before that: 67 Sunbeam, several pre-68 VW's, '41 Buick, '42 Ford Jeep, and some boring stuff

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