Corsa noisy tappets
Discussion
Before anyone questions my virilty, its my sisters motor!!
its a 1.0 something, about 7yrs old and under 40k from new, only owner. Last week she said it was noisy and when I rev'd it she was right, the top end howled. It was all the tappets singing away, not sure if they're hydraulic or not. Does this motor suffer from tappet problems, or could it be a blockage from low miles? She has it serviced by a "friendly mechanic", presume correct oil goes in. Never tried it but would flushing help to get rid of gunge? ideas welcome please cause this is a new one to me, my V8 growls but never sings.
its a 1.0 something, about 7yrs old and under 40k from new, only owner. Last week she said it was noisy and when I rev'd it she was right, the top end howled. It was all the tappets singing away, not sure if they're hydraulic or not. Does this motor suffer from tappet problems, or could it be a blockage from low miles? She has it serviced by a "friendly mechanic", presume correct oil goes in. Never tried it but would flushing help to get rid of gunge? ideas welcome please cause this is a new one to me, my V8 growls but never sings.
Thanks for advice - I haven't looked at the design yet - presumably an OHC, does it directly drive the tappets or are there rockers? What puzzles me is that they all sound noisy - ie a blockage. Her mechanic did put more oil in and thrashed it, it apparently sounded better for a few miles. I'v never tried flushing, have always used good oils and engines have been fine. Guess I'll get a manual and get the car over for a weekend, I'll let you know how I get on.
just a suggestion;
try flushing oil and add Wynns hydraulic tappet treatment tothe fresh oil, also make sure the right oil is used, 15/40 mineral in that engine, anything lighter could be as bad as anything heavier, the wynns stuff is trade only, so find a garage that uses it, Factors normally sell the cans in boxes of 24 unless you are lucky!
Mark
try flushing oil and add Wynns hydraulic tappet treatment tothe fresh oil, also make sure the right oil is used, 15/40 mineral in that engine, anything lighter could be as bad as anything heavier, the wynns stuff is trade only, so find a garage that uses it, Factors normally sell the cans in boxes of 24 unless you are lucky!
Mark
danbuoy said:
Thanks for advice - I haven't looked at the design yet - presumably an OHC, does it directly drive the tappets or are there rockers? What puzzles me is that they all sound noisy - ie a blockage. Her mechanic did put more oil in and thrashed it, it apparently sounded better for a few miles. I'v never tried flushing, have always used good oils and engines have been fine. Guess I'll get a manual and get the car over for a weekend, I'll let you know how I get on.
Haven't taken one of these particular engines apart but the usual Vauxhall method is to have the cam acting on the centre of rockers, with the valves at one end and the hydraulic tappet device under the other end. Should only be four bolts to whip the cover off the cam box which will enable you to see if there's loads of sludge and to check the cam lobes for scoring/wear.
Pigeon said:
danbuoy said:
Thanks for advice - I haven't looked at the design yet - presumably an OHC, does it directly drive the tappets or are there rockers? What puzzles me is that they all sound noisy - ie a blockage. Her mechanic did put more oil in and thrashed it, it apparently sounded better for a few miles. I'v never tried flushing, have always used good oils and engines have been fine. Guess I'll get a manual and get the car over for a weekend, I'll let you know how I get on.
Haven't taken one of these particular engines apart but the usual Vauxhall method is to have the cam acting on the centre of rockers, with the valves at one end and the hydraulic tappet device under the other end. Should only be four bolts to whip the cover off the cam box which will enable you to see if there's loads of sludge and to check the cam lobes for scoring/wear.
It's a 4 valve per cylinder engine and DOHC, I believe that it's actually got the cams acting directly on the hydraulic tappets acting on the valves.
if its the 8valve you will need special tool's to remove the cam to acess the tappets,if its the 3 cylinder 12valve or 4cyl 16 valve the share the same special tools to reset the cam timing because the cams have no key ways the are vernier cams,this engine does suffer with hydro tappet problems,they are not direct acting they do use rocker arms.
Edited by thong on Wednesday 27th September 19:45
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