too much valve noise? *vid inside!*
#11
#13
#14
#17
Todays work..
Found what appears to be making the noise..
The cam on the left hand side of the engine on the intake port appears to have wear marks.. This is exactly where the sound was coming from..
The others appear to be in good condition.. I did have a go at measuring the gaps with a feeler guage and from what I could tell the gaps this side of the engine were ok..
I was measuring the gap when the large side of the curve on the cam was facing down... is this correct? Or are they meant to be sideways?
All of the valves appeared to be within the acceptable limits apart from port 4 intake valves.. they were 0.09!! This was measured when the large part of the cam was facing down.
The damaged cam you can see in the pictures in on port 1 intake valve.. the clearances appeared to be ok here.. The noise was defo coming from the top of the engine where the cam has been damaged..
What could cause this type of wear?
Does it need replacing?
If so can I use one from a spare engine?
Cheers
The cam on the left hand side of the engine on the intake port appears to have wear marks.. This is exactly where the sound was coming from..
The others appear to be in good condition.. I did have a go at measuring the gaps with a feeler guage and from what I could tell the gaps this side of the engine were ok..
I was measuring the gap when the large side of the curve on the cam was facing down... is this correct? Or are they meant to be sideways?
All of the valves appeared to be within the acceptable limits apart from port 4 intake valves.. they were 0.09!! This was measured when the large part of the cam was facing down.
The damaged cam you can see in the pictures in on port 1 intake valve.. the clearances appeared to be ok here.. The noise was defo coming from the top of the engine where the cam has been damaged..
What could cause this type of wear?
Does it need replacing?
If so can I use one from a spare engine?
Cheers
#20
Got it all finished tonight and started up ok
Valve clearances was tricky.. but once I got the hang of it went ok.. Also had to replace the cam as it did defo have some slight damage.. lucky I had a spare engine..
I didnt replace the cam chain tensioner gasket and had an oil leak.. doh - new gasket now gone in!
The noise has gone!! It must have been the damaged cam causing it..
I managed to spill some oil on my exhaust wrap which is now smoking like a biatch
Any ideas how to get it off without removing the wraps?
Heres a short video of it firing up after the new gasket was fitted and had stopped leaking oil..
http://www.youtube.com/watch?v=5xAAncjO_yE
Another vid of the wraps smoking..
http://www.youtube.com/watch?v=ubj7iRxwsv8
I havent synced the carbs again yet and the exhaust is blowing slightly so will sort that tomorrow.. The bike seems to loose revs slower - could be something to do with the slightly retarded timing? More likely the exhaust blowing and require sync I guess..
Roll on the weekend
Valve clearances was tricky.. but once I got the hang of it went ok.. Also had to replace the cam as it did defo have some slight damage.. lucky I had a spare engine..
I didnt replace the cam chain tensioner gasket and had an oil leak.. doh - new gasket now gone in!
The noise has gone!! It must have been the damaged cam causing it..
I managed to spill some oil on my exhaust wrap which is now smoking like a biatch
Any ideas how to get it off without removing the wraps?
Heres a short video of it firing up after the new gasket was fitted and had stopped leaking oil..
http://www.youtube.com/watch?v=5xAAncjO_yE
Another vid of the wraps smoking..
http://www.youtube.com/watch?v=ubj7iRxwsv8
I havent synced the carbs again yet and the exhaust is blowing slightly so will sort that tomorrow.. The bike seems to loose revs slower - could be something to do with the slightly retarded timing? More likely the exhaust blowing and require sync I guess..
Roll on the weekend