has my oil pump failed?

[marc69]

the oil light is staying on my xe and there is tappet noise. Is this the oil pump and if so is it a big job?

[Southie]

the oil light is staying on my xe and there is tappet noise. Is this the oil pump and if so is it a big job?

Probably the oil pressure relief valve, take it out and give it a good clean

[marc69]

Where abouts is that?

[therealnovaboy]

most likley the pressure switch. check it for oil leaks

[Benn]

If your oil light is on you really dont want the engine running.

Do you have a pressure gauge?

[philip]

Depending how long its been on....if its not a sticky relief or dicky sensor. Could of knocked big ends out. So new bearings or worse case crank grind.

[Will F]

Tbh if the lights on and it's been running it's too late for your big ends! The pressure sender could do with coming on much earlier!

[marc69]

I have not driven it with the oil light on. There is an oil pressure gauge and on Sunday all was well both with the gauge and the oil light however, I started it yesterday and the gauge reads nothing and the light stayed on. I took the oil cap off to see if oil was spluttering out but it wasn't and as said it was very tappety so I switched it off.

I checked the pressure gauge and oil level all seem fine and the tappet noise made me think that it is more than a faulty gauge.

Will the oil pressure relief valve have stopped the oil flow enough to cause the tappet noise?

[Nobby]

I started it yesterday and the gauge reads nothing and the light stayed on. I took the oil cap off to see if oil was spluttering out but it wasn't and as said it was very tappety so I switched it off.

Answered your own question imo bud, id get a decent gauge on it and check also if you can buy try a know working pressure switch

[Will F]

The relief valve will stop the oil flowing. Period! Thats why the top end was tapping as thats what will suffer first - VERY closely followed by the big ends....