Piston Ring's Gap 72mm

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Re: Piston Ring's Gap 72mm

10 Jul 2014 17:00 - 10 Jul 2014 17:02
#639645
DobbinsCMA wrote: That is a good point. I guess I could but maybe I should get some. Though I do not appreciate your negative judgmental tone. This a place to help people not to be a jerk. Notice how 4TheKZ1000 said the same thing but not in a way that made him look like an condescending arse. I do not do this for a living nor do I pretend to be a professional so I understand that I may be a little ignorant.

Now back to my initial question of the gap for 72mm rings. Since you are so very experienced do you think you could give me a double check on my math? That would be most helpful Dr Gamma.

According to my math:

72mm = 2.83"

nominal ring end gap should be about .009" - .011"

Slightly too much gap is not a problem, too tight can cause rings to break when they heat up.
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Last edit: 10 Jul 2014 17:02 by bountyhunter.
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Re: Piston Ring's Gap 72mm

11 Jul 2014 05:58
#639682
bountyhunter wrote:
Slightly too much gap is not a problem, too tight can cause rings to break when they heat up.

thats a big 10-4.

if ring ends expand and touch it,it is trying to rip the top of the piston off.

leon
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Re: Piston Ring's Gap 72mm

11 Jul 2014 13:47 - 11 Jul 2014 13:48
#639721
I totally see what you mean about te "feel" with the metal. Though roughly they gave the same results the metal allowed me to see how much to take off one of the piston rings. I rounded up just to be safe because at 500 dollars a set for the pistons; id rather not have them get ripped apart.
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Last edit: 11 Jul 2014 13:48 by DobbinsCMA. Reason: Fat fingers

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Re: Piston Ring's Gap 72mm

11 Jul 2014 19:27
#639777
Come on now,how many of you have been around long enough to remember using a match book cover to set points?
Hold up your hands! :woohoo:
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Re: Piston Ring's Gap 72mm

11 Jul 2014 22:29
#639791
I have to raise my hand on this one because in a pinch a match book cover worked not only to set the points put to make sure they were clean after using the feeler gauge.

I own a couple of feeler gauges because they keep walking off.
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Re: Piston Ring's Gap 72mm

12 Jul 2014 02:56
#639799
It was a match book cover for the spark plug in the lawnmower.
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Re: Piston Ring's Gap 72mm

12 Jul 2014 07:17
#639812
PLUMMEN wrote: Come on now,how many of you have been around long enough to remember using a match book cover to set points?
Hold up your hands! :woohoo:


Attachment bumputertriperaisedhand.jpg not found



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Re: Piston Ring's Gap 72mm

14 Jul 2014 05:53
#640007
PLUMMEN wrote: Come on now,how many of you have been around long enough to remember using a match book cover to set points?
Hold up your hands! :woohoo:



leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0

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Re: Piston Ring's Gap 72mm

14 Jul 2014 05:56
#640009
I was never allowed to play with matches. :ohmy:
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