cg
Announcement
Collapse
No announcement yet.
Whats the x on shim mean?
Collapse
X
-
Thanks Steve for your input. I have a Clymers manual for my 450 twin and it just shows the one cam lobe position. When I adjusted the valves on the 650g the manual noted the two positions you wrote of, which I followed. It's nice to have someone to bounce ideas off of.
cgsigpic
83 GS1100g
2006 Triumph Sprint ST 1050
Ohhhh!........Torque sweet Temptress.........always whispering.... a murmuring Siren
-
Originally posted by Charlie G View PostThanks Steve for your input. I have a Clymers manual for my 450 twin and it just shows the one cam lobe position.
Although we had a 450 in the garage a few years ago, I don't remember ever adjusting the valves on it, so I don't know what is called for in the way of cam position. Generally, having the lobe pointing away from the valve is good, but in the case of the fours, spreading them apart a bit will keep either one of them from pushing on a valve, assuring consistent readings.
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)
Comment
-
gswisconsin
On the 450 twin, would it not make sense to check valve clearance for one cylinder at TDC on the compression stroke, since this is when you really want the intake and exhaust valves to both be closed to assure maximum compression? Both intake and exhaust cam lobe will be at 90 deg. from valve stem.
Comment
-
I've never understood the need of the X shims when so many, new and old, shims are incorrectly sized anyway - eg a marked up 2.65 is actually 2.67. Measuring every shim with a caliper is essential - don't rely on the numbers.79 GS1000S
79 GS1000S (another one)
80 GSX750
80 GS550
80 CB650 cafe racer
75 PC50 - the one with OHV and pedals...
75 TS100 - being ridden (suicidally) by my father
Comment
-
Originally posted by hampshirehog View PostI've never understood the need of the X shims when so many, new and old, shims are incorrectly sized anyway - eg a marked up 2.65 is actually 2.67. Measuring every shim with a caliper is essential - don't rely on the numbers.
On the other hand, a 2.65x might read 2.67 or 2.68, but there is no guarantee that the "X" means exactly half-way.
.sigpic
mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)
Comment
-
oldgsfan
OK, so any tricks to actually getting the shims out? That's where I'm struggling on my valve job.
Oops. And I apologize for hijacking the thread.
Comment
-
Did you find the little cutaway section in the bucket? The bucket rotates around. I slip a very fine screw driver in that cut out and gently lift the shim above the rim of the bucket. I have a pair of long needle nose pliers which I use to pull and jiggle the shim up between the cam and bucket. No magnets, or so I read somewhere. I think Basscliff site has some pictures and discription. Check it out. If not PM me and I'll take a picture.
cgsigpic
83 GS1100g
2006 Triumph Sprint ST 1050
Ohhhh!........Torque sweet Temptress.........always whispering.... a murmuring Siren
Comment
-
oldgsfan
-
Rick65Cat
Originally posted by ddaniels View PostWhere is info on this zip tie method? I absolutely HATE that little tool. My wife kept coming to the garage door wondering who I was screaming at...
I had the tool when I had my first '78 1000...greatest thing since sliced bread
Comment
-
Originally posted by Rick65Cat View PostI read that article on BassCliff's site. I know this sounds dumb but..is there no worry about the ziptie getting "snipped" by the valve and leaving a chunk in the cyl?
I had the tool when I had my first '78 1000...greatest thing since sliced bread
cgsigpic
83 GS1100g
2006 Triumph Sprint ST 1050
Ohhhh!........Torque sweet Temptress.........always whispering.... a murmuring Siren
Comment
-
Originally posted by Rick65Cat View PostI read that article on BassCliff's site. I know this sounds dumb but..is there no worry about the ziptie getting "snipped" by the valve and leaving a chunk in the cyl?
79 GS1000S
79 GS1000S (another one)
80 GSX750
80 GS550
80 CB650 cafe racer
75 PC50 - the one with OHV and pedals...
75 TS100 - being ridden (suicidally) by my father
Comment
Comment