https://www.tunetech.co.za/n20-engine-problems-right-motorplan/
So I didnt think I would have to do a write up about the petrol F – series engines.
My usual comments over the years to clients with the petrol E-series generation was
“service every 10000KM or once a year as this car is prone to sludge and engine issues”
I said this like a broken record and honestly it was terrifying taking on these vehicles, revs jumping and engine cutting out issues, if they weren’t already a cleint with a service record with me.
Most of my clients now know to service more often and always keep records.
So here we are again ? with similar issues just more aggravating as I am meeting new clients coming straight from the big deals.
These engines are siezing due to what seems like an arrangement of things. The the timing chain , oil pump chain and plastic guides break first with the oil pump failing due to pieces of plastic or sludge with somes cars.
(kindly note the N20 timing chain jobs we have worked on – the faults and mileage – way below – end of article)
THE PROBLEMS:
If you hear any NEW noises (hum or rattle from engine not the direct injection “diesel noise” ) or see the “Drivetrain Message” – see your mechanic asap.
Sludge, oil pump failure, timing chain and guide failure.
Drivetrain message; due to above or below
Misfire and revs jumping
Fuel system issues.
Turbo failure if the client left the oil faults and sludge too long.
THE SOLUTION:
Strip and fault. We change the oil pump, guide and timing chain kit for a ¼ or less of what the quote would be for an engine replacement.
We drop the sump and change the big end bearings.
If it has seized solid and the Big end bearings damaged the crank, we fit a used motor with the parts listed above renewed.
You can save this motor from failing and rebuild the motor if you catch these faults just in time.
A new client was not so fortunate – see pic of bearings below
It went further and the Crank got damaged – as a courtesy we read all faults on cars with every lube service we do – we warn clients long before it gets to this*****
Unfortunately there are no oversized bearings available for N20.
This repair requires a brand new crankshaft with all new bearings.