Piston Liners

[Guest ashnicholls]

Just reconditioning my engine.

 

and i have just lightly honed out the piston liners. there is a small ridge in the piston liners where the piston rings sit when the piston is at the top.

 

is this ok, or should i hone them out abit more.

 

or does it need new liners?

 

cheers

[Wurzel 16]

Mate, judging from you other threads, I stongly suggest you get yourself one of the older style Haynes manuals from Ebay or similar. It will contain all the information you need and more.

 

[Guest ashnicholls]

got a haynes manual, its rubbish. cant find anything i need in it.

[Miles 331 1 Cars]

Not knowing what 'small' means it's difficult to say, But honing this will do nothing as the piston doesn't go that high,

If the bores out of tolerance you will need new liners, Check with your engine builder who's honed your liners,

But the info wil lbe in the Joke book, as Nick's said you need the old one, Not the new bog paper type

[Guest ashnicholls]

im the engine builder. i have lightly honed it with a honer?

 

ok, will look for an old book,

 

cheers

[Guest ashnicholls]

if the engine were to need new liner, how much do they cost, could i just use a good 2nd hand pair. cheers

[fiji bob 0]

they are around £250 for a set, if you did buy new or used liners you would need to have the liner protusion checked unles you fancy doing it yourself

[Guest ashnicholls]

flip these better be ok, this is turning out to be very expensive.

[Guest ashnicholls]

my mechanic mate, says they are fine. only a sharp ridge would be serious.

[mickie 3]

i have a problem i think with my liners, i cant find anything in search but seems this helped me a little with my problem .. the other problem i think i may have is i have straight lines going down my honed out liners, will this be a problem ? or will i be ok bedding in my piston rings on them ?

 

cheers

[boombang 2]

not really as oil will pass freely from one side of rings to the other.

 

If the rings pass over any sort of ridge, then I would hazard a guess that in the time the rings would normally start to bed in, they are screwed.

[ALEX 98 1 Cars]

Honing isn't done to remove imperfections or shape a liner in any way. Honing out that slight lip wont achieve anything, besides it would probably take forever.

Honing is to create a rough surface and remove the glaze for new rings to bed into.

[mickie 3]

i took my liners to get honed about 2 weeks ago, i still haven't got round to putting them back in my engine block, but am i wasting my time sticking in my liners after the machine shop somehow made a couple of straight lines going down my liner ? only one of the liners look bad, the rest look perfect..

 

you can just about feel the straight lined groove with your finger nail

 

Edited July 30, 2006 by mickie

[Guest davebxgt]

My mi16 liners had ridges, but they honed out completely (see pic), however I have seen honed out liners that look like yours but are still acceptable. Just take them to an engine builder and get them measured to see if they are close enough.

 

 

Dave

[Guest ashnicholls]

ye mine looked exactly the same as mickie's with the slight ridges at the top.

 

I have fitted them now, and I am just hoping for the best.