timming belt woe

blake7 · Sep 15th, 2008, 21:33

hello i am new to this and would like a bit of advice ,i have a v40 98s with gdi engine the timming belt has snapped . i have taken the head off and can see marks on the pistons where valves have hit ,but they seem to seat ok and move in and out ok when turned .am i just kidding myself that the valves arent bent.any advice would be appreciated

scottishvolvo · Sep 15th, 2008, 22:36

When I checked mine on an old Orion I poured water into the exhaust manifold and where there was a dodgy valve the water came past it. Ended up changing all exhaust valves on that one. Most likely to be exhaust valves which are bent for some reason. Pretty sure some-one will tell us why soon.

stevo48 · Sep 16th, 2008, 07:07

You have already got the head off and the engine is a GDI(well known for coking up) so it is well worth getting the valves reground and if need be have any damaged valves replaced, the valves may well open and close and appear to seat properly but if the valve stem is slightly bent (which it more than likely is) the valve will not open fully therefore affecting the performance of the engine.

Sep 15th, 2008, 21:33	#1
blake7 New Member Last Online: Sep 16th, 2008 17:07 Join Date: Sep 2008 Location: retford	timming belt woe hello i am new to this and would like a bit of advice ,i have a v40 98s with gdi engine the timming belt has snapped . i have taken the head off and can see marks on the pistons where valves have hit ,but they seem to seat ok and move in and out ok when turned .am i just kidding myself that the valves arent bent.any advice would be appreciated

Sep 15th, 2008, 22:36	#2
scottishvolvo Premier Member Last Online: Nov 17th, 2023 00:15 Join Date: Dec 2004 Location: Glasgow	When I checked mine on an old Orion I poured water into the exhaust manifold and where there was a dodgy valve the water came past it. Ended up changing all exhaust valves on that one. Most likely to be exhaust valves which are bent for some reason. Pretty sure some-one will tell us why soon. __________________ Chris '98 S40 2.0T..Gone. 2000 S40 2.0 SE Auto and loving it. 2014 V40 Cross Country Please consider registering with the Anthony Nolan Trust, you could save a life.

Sep 16th, 2008, 07:07	#3
stevo48 Premier Member Last Online: Jul 9th, 2020 20:08 Join Date: Dec 2007 Location: Halifax West yorkshire	You have already got the head off and the engine is a GDI(well known for coking up) so it is well worth getting the valves reground and if need be have any damaged valves replaced, the valves may well open and close and appear to seat properly but if the valve stem is slightly bent (which it more than likely is) the valve will not open fully therefore affecting the performance of the engine.

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