Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: WPF81S on November 27, 2013, 11:13:40 AM
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Am I doing something wrong just can't get cam chain back on 1 hour so far. Is there a special way? Iain
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Ian,
I had trouble doing mine at first.
Make sure the tensioner is fully backed off.
Make sure you are putting the chain back on from the left side of the cam as you are looking at it (exhaust ports in view).
In my experience the chain will not go back on from the other side.
Hope this helps.
Regards,
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Done it I just ignored the Haynes manual and used some common sense.
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Done it I just ignored the Haynes manual and used some common sense.
We should have a "Quote of the Month" page - I nominate this for the first inclusion"!
Steve
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I spent a while at mine until I decided to move the chain to the other side of the sprocket as I had tried everything else, much easier. :)
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took me about an hour to realise that,
and when I fitted it it was 180 degrees out of crank,
luckily it was before and after a vacation,so when I returned,I sorted it before I turned the motor
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Yes very silly being able to fit a cam sprocket in 2 positions
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surely you can't get it 180 degrees out as long as crank is in correct position and cam notch lines up it cant be wrong?
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surely you can't get it 180 degrees out as long as crank is in correct position and cam notch lines up it cant be wrong?
the problem was,I had lined the crank at TDC 1-4 ,and the cam notch at 3pm ish !!
but ,spent about an hour struggling to fit chain to sprocket,to shaft,during that time the crank got moved,mugs of tea
nearly got thrown across the garage,this at 9pm friday night,the day before going off on holiday,
it finally fitted,everything rotated as it should,no rockers fitted yet,
BUT !!
while I was away,I gave it some thought,and decided to check the timing when I got back,
sure enough,it was well out,but,I remembered how to fit it quickly,so job done,properly
timed
and all back together,
only other assemble hassle is the airbox-cargs etc
dont want to either again in an hurry
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Put cam box back on and turned over engine by kickstart and am getting a load click see http://www.youtube.com/watch?v=NMbgar0vHqY&feature=youtu.be
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Ian,
Sounds like a sticking valve.
Have you had the guides done, I had this on my 400 4 valve sticks then the piston gives it a little tap and it snaps shut.
Could be wrong though.
Regards,
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No all this had done was head gasket also I have got huge valve clearences. It is not possible to put anything back together wrong is it?
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Did you read the manual carefully about fitting the top cover as its very easy to bend valves if you don't
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I used elastic bands to hold the rockers up as I found a clip on youtube.
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If you cannot adjust to the correct clearances something is not together properly, bent or broken.
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I saw a forum discussion on this for 500/550 and it is possible to put the rocker ( I think) not aligned correctly, and caused a loud click when turning engine over, effectively the tappet screw slips off top of valve, I will try and find the article and put a link on. Put your figure on top of tappet where noise is and feel what it does when engine turned over
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Tappets should be all screwed out and held back with elastic bands when installing the tappet cover. You will know if its on properly when the gasket surfaces are flush and all the bolt holes line up. Can't go wrong really.
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Hi all just taken cam cover off again looks like valves sticking. Do these get any lubrication? the reason I ask is that the channel under the cam is full but the area where the valve springs is dry, is it just splash fed from the cam, can i put some oil in there to lube the valve stems. Iain
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Hi all just taken cam cover off again looks like valves sticking. Do these get any lubrication? the reason I ask is that the channel under the cam is full but the area where the valve springs is dry, is it just splash fed from the cam, can i put some oil in there to lube the valve stems. Iain
yes,squirt plenty through the springs onto the stem