Magnus Jahnke
New member
- Joined
- Jun 20, 2019
- Messages
- 4
- Points
- 1
Hi!
Last fall my 20 vt started to make a knocking sound like if a tappet was empty of oil.
Since other projects came in between I didnt get time to fix it untill a month ago.
I took the cams out and dismantled and cleaned all the tappets. When I was putting it all together again I noticed that one cam lobe on #1 exhaust was worn down about a millimetr and a half.
Aha thats it! I thaugt (stupid I know). Got a new cam and tappet,got it all tgether again and got it started. Same noise still...
Someone told me that the tappets are pressurized via the cam variator and if the variator is leaky the tappets may not fill up.
Can anyone confirm that?
It sounds a bit strange to me.
Most engines I fiddle with have rocker arms or valve in head so the 20 vt is a bit overcomplcated for me, Im learning though.
Rgds. Magnus
Last fall my 20 vt started to make a knocking sound like if a tappet was empty of oil.
Since other projects came in between I didnt get time to fix it untill a month ago.
I took the cams out and dismantled and cleaned all the tappets. When I was putting it all together again I noticed that one cam lobe on #1 exhaust was worn down about a millimetr and a half.
Aha thats it! I thaugt (stupid I know). Got a new cam and tappet,got it all tgether again and got it started. Same noise still...
Someone told me that the tappets are pressurized via the cam variator and if the variator is leaky the tappets may not fill up.
Can anyone confirm that?
It sounds a bit strange to me.
Most engines I fiddle with have rocker arms or valve in head so the 20 vt is a bit overcomplcated for me, Im learning though.
Rgds. Magnus