Thread: after given my disco 1 a good rev now a tappet noise very loud when hot

maybe not relevant but i did something similar years ago with another model of a leyland but this car had no tappets so it had wondering for about 6 months then all a sudden the noise stopped and it started to run on 1 less cylinder.
pulled down the engine and found the side of a piston was in the sump

yeh thanx lol did it go away when u drove it normally its more when hot and or lower revs well i suppose i will find out when i do an oil change and see if putn thicker oil in it might help or theres metal in the sump lol

the noise i had was all over the place, sometimes there, sometimes not, very perplexing. when it went i was several hundred kilometres from home (Clifton on the darling downs) so limped home at 80 kays and 3 cylinders.
on the trip home i pulled into the Aratula servo and filled the oil up and checked the petrol i kid you not

bugger lol was it exe to rebuild mines not using oil just the noise sounds top end but ? lol

Just guesses from what you say but

sticking exhaust valve, or maybe bent valve .

Do a compression test and it may tell you where to look.
Regards Philip A

Do the rover v8's have manually adjusted tappets? Rebuilt stacey's pajero and it had a tappet rattle when i started it back up, they are auto adjusting tapets and ahave a pocket of oil between the tappet and the lifter. In this case there wasnt any oil so it rattled its arse off. Pulled it off, put some oil in and away she want.

Matt

It has hydraulic tappets, maybe one has collapsed, also possible it had stripped a rocker shaft retaining bolt.

yeh i noticed today when theres load on it it s good but when i back off its noisey again then put down the accellerator it goes away .gonna do an oil change then maybe take tappet cover s off to see any breakages if it doesnt go away thanx everyone for ur ideas