Water pump info - Page 2

ITSv40 · Feb 22nd, 2024, 13:31

I understand caution if you are unsure. However, the tensioner in your other thread is missing the plastic cushion pad; that indicates to me it was a cowboy job.

The hydraulic tensioners are not a service item and are designed to be reset when changing belts. The procedure is to remove the tensioner and lightly clamp end to end in a vice. Then VERY SLOWLY put a little pressure on the tensioner by closing the vice. Wait a few moments and repeat. The secret is to take your time and compress the tensioner VERY SLOWLY until a pin can be inserted through the hole in the tensioner body and piston - locking the piston.

Then refit the tensioner to the engine, refit the belt and the plastic cushion pad. Then remove the pin allowing the piston to expand and tension the belt.

My previous V40 did 370,000 miles with the original hydraulic tensioner. I changed the belt every 80,000miles and no issues with the tensioner or pump.

Kev0607 · Feb 22nd, 2024, 15:38

If you're unsure, bring it to a professional.

scorcherimports · Feb 22nd, 2024, 17:02

Right, the last one working in the van was a professional..

Will change the belt.

Thanks for the guidance/help!

Feb 22nd, 2024, 13:31	#11
ITSv40 VOC Member Last Online: Today 17:52 Join Date: Mar 2008 Location: Northampton	I understand caution if you are unsure. However, the tensioner in your other thread is missing the plastic cushion pad; that indicates to me it was a cowboy job. The hydraulic tensioners are not a service item and are designed to be reset when changing belts. The procedure is to remove the tensioner and lightly clamp end to end in a vice. Then VERY SLOWLY put a little pressure on the tensioner by closing the vice. Wait a few moments and repeat. The secret is to take your time and compress the tensioner VERY SLOWLY until a pin can be inserted through the hole in the tensioner body and piston - locking the piston. Then refit the tensioner to the engine, refit the belt and the plastic cushion pad. Then remove the pin allowing the piston to expand and tension the belt. My previous V40 did 370,000 miles with the original hydraulic tensioner. I changed the belt every 80,000miles and no issues with the tensioner or pump. __________________ 2001 V40 2.0lt Sport lux - Daily Driver. 174k miles. 2003 C70 2.4 GT Convertible - Garage Queen. 65k miles. http://www.neptuno6benagil.com

Feb 22nd, 2024, 15:38	#12
Kev0607 Premier Member Last Online: Today 19:20 Join Date: Apr 2019 Location: Manchester	If you're unsure, bring it to a professional. __________________ 2007 S80 2.4 D5 - 110,000 miles

Feb 22nd, 2024, 17:02	#13
scorcherimports New Member Last Online: Apr 24th, 2024 16:05 Join Date: Aug 2022 Location: Bolho	Right, the last one working in the van was a professional.. Will change the belt. Thanks for the guidance/help!

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