All Things Mk5 > Mk5 General Area
URGENT oil pressure stop engine
Pesky jones:
--- Quote from: Pudding on March 04, 2016, 03:10:00 pm ---I know on the TSI engine if the chain wears out to a certain point, the engine won't start at all. Probably because the ECU can't figure out where the cam is in relation to the crank anymore. I wonder if that's true of the TFSI?
--- End quote ---
Makes sense... sounds weird but hopefully! fingers crossed it could just be a new cam chain, adjustor, tensioner and the associated gaskets, bolts etc...
@Dan_FR You seem pretty clued up on tfsi engines and what does and doesnt cause them to cut out etc what do you think?
Roadrebel:
My chain broke so the inlet camshaft stopped turning and the pistons hit the valves and bent them.
You can easily check this by removing the camshaft cover and turning the engine with a spanner to see if both camshafts turn.
If the oil strainer was blocked it would not stop the engine from starting again unless there is more serious damage.
Pesky jones:
Taken battery tray and coilpacks out. Struggling with rear breather pipes, cant get either off! What about releasing the valve cover and then trying to pull the hoses off once the valve cover is off?
Also started to disconnect the fuel pump and left it at the banjo bolt gunna try tomorrow. If youre looking at it from beneath it undoes anti clockwise right?
r5gtt:
It could well be a failed hydraulic tensioner for the chain so here's hoping :drinking:
Yes the banjo unbolts anti clock wise.
Dan_FR:
--- Quote from: Peskyjones on March 04, 2016, 03:17:35 pm ---
--- Quote from: Pudding on March 04, 2016, 03:10:00 pm ---I know on the TSI engine if the chain wears out to a certain point, the engine won't start at all. Probably because the ECU can't figure out where the cam is in relation to the crank anymore. I wonder if that's true of the TFSI?
--- End quote ---
Makes sense... sounds weird but hopefully! fingers crossed it could just be a new cam chain, adjustor, tensioner and the associated gaskets, bolts etc...
@Dan_FR You seem pretty clued up on tfsi engines and what does and doesnt cause them to cut out etc what do you think?
--- End quote ---
As has been said, oil pressure warning will not stop it from starting. Since the oil light appeared first I suspect the problem still lies here and with the oil pump. The timing fault could well be the tensioner not doing its job due to lack of oil pressure.
If you plan to start the car without checking the pump, then get a mechanical gauge plumbed in to check for pressure without relying on the warning light.
Removing cam cover and checking both cams are turning is a must. Hopefully the timing correlation will go with oil pressure.
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