Change Valve Seals W/O Engine Disassembly

[micah]

Hey I currently need to change my seals but I already have the motor out of the frame, how much easier is this method rather than disassembling the head? In other words which way is the best approach?

[grepper]

This method is very time consuming and your working in very tight spaces. If you already have the engine out, I'd say just take off the very top part of the head. You could try w/o taking out the Cam. Then you could use this method, but you won't be working in such tight spaces. Or you could take the Cam out and once the Cam is out, along with the rocker arms, those seal will be right there under the valve springs. You'll still have to compress the springs some how and get the collets out.

[micah]

Sorry to jack this thread but, I began to try and tear into my motor after work today, and just from trying to pull the top head cover off I stripped both the top right and left cylinder side counter-sunk Phillips screws( ya know, the ones on either end of the cam shaft)... What would y'all recomend? Easy out?

[grepper]

Get yourself an Impact Screwdriver Set. www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=37530&xcamp=google&utm_source=googlebase&utm_medium=cpc&zmam=13262200&zmas=12&zmac=112&zmap=37530
Only $7 at Harbor Freight, but priceless when working on these old scoots. You'll never strip the head of a screw again. If that doesn't work, try to grab the edge around the outside with a pair of Locking Pliers.

[micah]

Ok so I got the valve cover off finally, new question: Is removal of the camshaft neccessary? I don't have a chain breaker tool and don't want to buy one, and the valve looks pretty exposed? Can't I just compress the springs pull them off and change out the seals easy-peasy, or am I neglecting something?

[grepper]

>Is removal of the camshaft neccessary?
No, I was just thinking that, so you could get the rockers out of the way.

>I don't have a chain breaker tool and don't want to buy one, and the valve looks pretty exposed? Can't I just compress the springs pull them off and change out the seals easy-peasy, or am I neglecting something?
If you can get at them, great, I've never tried. You can remove the cam w/o breaking the chain. There's write-ups here, you just slide the cam bearings out, then it's loose enough to get the cam out.

BTW: your in uncharted territory for me....

[salty2x]

Does anyone know of another place to order valve seals from besides mikes, They have been out of stock for the last couple weeks.

[5twins]

650 Central.

[cooch58]

hi Folks

I am going to try and replace my seals Friday night. First I will get the bolt for the compressor from the local bike dealers nut and bolt box and turn the pipe joiner down to right length on daddys lathe. Wish me luck coz I am going to try and do the job in a couple of hours as it will be eating into Friday night beer time.

Cheers,
Cooch

[xsleo]

Getting the cam out with out breaking the chain isn't hard to do. Take the tensioner scew out. Lift on end of the cam, pull the bearings off. Do the same on the other end. With a bit of wiggling and twisting you can slip the chain off the cam and pull the cam out from under the chain.

[quiroga]

Hello can you post a pic with the measurements on it? My english level is not very good, and I can not see the pics ("This image is currently unavailable"). Thanxx!!