F-162 Continental engine

Brock-IA · Apr 7, 2009

We have a Continental engine that we rebuilt about 700 hours ago. This was the 3rd time in about 30 years. As in the past we had a machine shop bore out the block and fit new pistons and replace all brg. and reworked valves. We finished the assembly and installed in our fork lift. Engine developed a miss and some blowby. Pulled head and #3 cylinder scored inline with wrist pin. Pulled engine, dropped pan and removed #3 piston. Wrist pin snap ring came out on one side. The piston looked perfect in the snap ring area. The broken snap ring caused damage. Called machine shop, said this happens. What's you opinion? experience? Wondering why. Machine shop guy says he can bore block and press in a dry sleeve and replace piston. Wondering how he"ll treat me $$. Not sure snap rings break and come out. Your opinions apprecitated. Thanks

Thresherman · Apr 7, 2009

Hate to say it, but I think he did not have snap ring fully seated, just my opinion. BTW, I have rebuilt 200-400 engines over the years, everything from little briggs to big tractor and truck engines.

Hopefully he will help you out with the price.

Brock-IA · Apr 7, 2009

Thanks! That was my opinion also. But it gets personal when you question ones workmanship. A new snap ring might break but what are the odds? I guess I'll find out what type of person he is.

Owen Aaland · Apr 7, 2009

If the snap ring broke then it was most likely a defective part. If it came out of place it was most likely faulty workmanship. A broken ring should be covered by the supplier of the parts. A defective snap ring groove in the piston may also allow the ring to become dislodged.

A snap ring that came out of place would be between you and the machine shop. If you assembled the engine after the pistons were hung on the rods an argument could be made that both you and the machine shop bear some responsibilty. They would be the ones that did not get the ring assembled correctly but you as assembler need to inspect all the parts to insure they are properly assembled.

Anonymous-0 · Apr 7, 2009

its hard to ask for warranty after 700 hours.
come on.....

Traditional Farmer · Apr 8, 2009

Asking for warranty work with 700hrs is a bit of a stretch most places would give you 100hrs or 6 months.

greygoat · Apr 8, 2009

Snap rings break, Condoms break, nothing made by
man is perfect! Don"t blame the shop !

george md · Apr 8, 2009

Brock,
In the last 35 years of being in the machine
shop and repair biz, I have had 2 snap rings
break and do damage to the cylinder wall. One
was in a factory new J series continental engine
and it was my own engine.The pin scoured the cyl
wall and the pieces of the snap ring got in the
groove,when the piston came back up it split the
sleeveand I heard the pieces go out the stack.
The other one was a customers big cam cummins
350, pin scoured the wall and the pieces of the
ring went to the pan and he found them at oil
change. It had been running that way for some
time,as every 4000 miles the oil pressure would
drop and an oil and filter change would restore
oil pressure.He had been on the road for several
weeks,when he got home and did his own oil change
is when he found the pieces. The scoures in the
cyl are what was passing the fire and soot and
that was what was plugging the filter.His engine
was original as in had not yet been rebuilt,
that time I put in one cylinder kit and several
years later I rebuilt it out of frame.

george

Bill Shafer · Apr 9, 2009

Things do break and after 700 hours it would be hard to claim warranty.

F-162 Continental engine

Brock-IA

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Thresherman

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Brock-IA

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Owen Aaland

Well-known Member

Anonymous-0

Well-known Member

Traditional Farmer

Well-known Member

greygoat

Well-known Member

george md

Well-known Member

Bill Shafer

Member

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