[kermit_rr]

hm, appreciate the way of thinking about the problem solving aspect.

I have the sump off still, so that would give me good acces to check the clearances of the skirts. More info soon. Thanks again.

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]

 

[ThomasLRNL]

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!!!)

noted... will check.

View attachment 345336

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

 

[kermit_rr]

Personally, i think trying to spin the engine at the crank pulley won't present a lot of potential issues due to the lack of sudden push caused by each combustion

 

[steve2286w]

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

Not sure but you’d get a very tight hub nut

 

[ThomasLRNL]

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…

 

[marjon]

Sorry I don’t know much about your problem, but that bore looks in horrible condition.

J

 

[ThomasLRNL]

Sorry I don’t know much about your problem, but that bore looks in horrible condition.

J

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.

 

[kermit_rr]

Sorry I don’t know much about your problem, but that bore looks in horrible condition.

J

I was wondering what's happened to the piston

 

[kermit_rr]

I was wondering what's happened to the piston

What is this and why no rings?

 

[ThomasLRNL]

What is this and why no rings?
View attachment 345413

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

 

[kermit_rr]

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]

Ok. It looks like some kind of mad repair! The camera can play tricks

haahha indeed it can! i can see how it looks out of wack!! rest assured its my big fat thumb xD

 

[steve2286w]

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