Never measured the skirts but i would think you're more interested the the crown movement at/around tdc if you want to check for slappers (ooo-errr missus!!!)
steve2286w
Well-Known Member
ThomasLRNL
Member
noted... will check.
Good one to have. i think what i have is best described as a knocking sound no?
All, another idea to get the crankshaft to go operating rpms. Would an impact drill with an appropriate bit get it to spin over fast enough to maybe replicate is piston slap is a thing
steve2286w
Well-Known Member
Not sure but you’d get a very tight hub nut
ThomasLRNL
Member
gents, i found SOMETHING. if its the thing were looking for id like to check rn.
cil 4, score mark which alligns with the skirt of the cillinder. hard to see but there is a longitudional line and a little hourglass shaped mark on the piston. these seem to line up. possible signs of a knock?
i only have .05 mm guage and not the .063 one. .05 is not super tight but has some resistance.
another thing, i mentioned not hearing a tick when running it with the starter. but i did hear a tick when it was in the car…
cil 4, score mark which alligns with the skirt of the cillinder. hard to see but there is a longitudional line and a little hourglass shaped mark on the piston. these seem to line up. possible signs of a knock?
i only have .05 mm guage and not the .063 one. .05 is not super tight but has some resistance.
another thing, i mentioned not hearing a tick when running it with the starter. but i did hear a tick when it was in the car…
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ThomasLRNL
Member
not the best i know but still gets me 100 psi plus. havent ran this engine much so i hoped it would wear itsself in a bit since i gave it new rings.
I was wondering what's happened to the piston
ThomasLRNL
Member
thats my fingerprint and i took the rings off to test the clearance between tbe piston and the bore by taking it out and outting it in inverted like the manual says
Ok. It looks like some kind of mad repair! The camera can play tricks
ThomasLRNL
Member
haahha indeed it can! i can see how it looks out of wack!! rest assured its my big fat thumb xD
steve2286w
Well-Known Member
Were the ring gaps equally split around the circumference. Is there some black marks in the cylinder pic running down
Have you honed the bores after new rings
Have you honed the bores after new rings
ThomasLRNL
Member
ring gaps equally split...? What do you mean exactly with that? That their openings are staggered and not in line with each other on the piston?
Black marks no not really, scoring stripes yes. marks no.
No i have not honed the bores, i havent really thought about that. Is that a neccessity when putting in new rings? I did not know.
Wildefalcon
Well-Known Member
All a learning experience. Honing tools on eBay.
