m1bjr

Thanks for posting the update - many are never seen again!

Not great news, but you may be lucky and not have any bore wear.
In which case it 'may' be fixable with a re-ring or at worst oversize pistons.

Get them to properly check the oil jets under there too!

Good luck.

PS - if its messy, Spoon used to do a long stroke kit with a choice of oversize pistons and crank for < 1K

PaulF

Thanks for the Spoon info, when I get teh full SP, if its required I'll get tehm to investigate that as an option.

lower

Don't think the F20C block can be bored oversize due to the coating applied to the inside of the cylinders.

martin j

What kind of coating? out of general interest, good luck to the OP with the problems btw, would appear some warranties do work.?

PaulF

Hondas used car warranty refused to pay, saying it was wear and tear, the supplying dealer is paying up, apparently using a "fund" generated from warranties that have not been claimed on.

A question has been bugging me, given that all four pistons do approximately the same amount of work, apart from metalurgical differences, or manufacturing defects, why would one wear so much quicker than the others? Which begs another question which is should I ask for the rest to be checked for warning signs whilst it's in bits, cos I'm sure they'll only do the absolute minimum required to fix it.

NeilB

Despite the 4 cyls being equal the fuel mixture in the cylinder and lubrication characteristics will not be exactly the same. Similarly the characteristics of the honing process, mettalurgical properties of the pistons and rings etc. will also differ very slightly. There are a lot of variables here so the question shoudl really be:

How could one cylinder not wear quicker than the others?

Deep.

m1bjr

Like I said earlier, check the oil spray and the lube galleries.

You can overbore the F20C but you may need to sleeve the block.
As for coatings, Im not sure but Spoon list 0.25 and 0.5mm oversize pistons.

The 2.2l is a longer stroke, not a bigger bore. But if need be theres the option..

http://www.aj-racing.com/catalog/pro...?productid=799

Steve

PS I totally lost a top ring on a bike due to lean mixture and melting the corner of the crown slighly.
The second survived okay and the engine burned no oil.
The ring broke up as the land had gone.
The lean mixture was a restricted fuel flow on the last carb in the line.
The oil rings were intact though so doubt its this.

Yours might suggest a broken oil control ring, or a stuck ring.
Could be simple failure, or wear due to lack of oil feed, the bore may also be worn in that case.

Hope it works out okay.

Si2k

Sounded nothing at all to worry about. Completely normal!

Interesting to read synthetics don't burn blue, that's not anything I have heard before. Was it using much oil?

m1bjr

Mmm.. my thoughts too.
I botched the oil rings on a bike build and with Mobil 1 the smoke was VERY blue, as was the air!

PaulF

I was really suprised about the oil not burning blue, it may be that the Honda guy took the libety of bullshitting me about synthetics burning white, but the smoke was definately white, which is why I was so confused. As a former owner of 70's BL cars (I had an Alegro that used more oil than petrol, well almost) I know about blue smoke

My oil consumtion seemed normal, but then I had read these cars use a lot of oil and a check on evey fuel stop was mandatory, so having only needing to fill up once in the two and a half months I thought was OK!

Additionally, as I may not have said, there was no smoke prior, or at least not that was noticable, and my chrome tips are not especially black either, seemed to let go really quickly, and after a very sedate 10 mile drive home from work too, no VTEC at all