Topic: Excessive "blow by" cyl 2+3

[Jeffy]

The first engine burned a hole in the #1 piston. Replaced that and #2 piston (I think the rings were worn on it). Then when the motor detonated, pistons 3 and 4 were grenade with nothing left (if I remember correctly). I had replaced the head and sent it back to Clearwater Cyl as the final detonation was catastrophic. The entire motor was replaced at that point with a motor from S&S in Washington.
So to answer your question, this is motor #2 and motor #1 was sent to them as a core charge. 2 totally separate motors.

Actually, what I was getting as was shortcuts were taken.  You had problems with #1 and #2 then when that was fixed #3 and #4 went.  When one or two cylinders need work, it's always best (and cheaper in the long run) to do all of them at the same time.

[stan98tj]

Actually, what I was getting as was shortcuts were taken.  You had problems with #1 and #2 then when that was fixed #3 and #4 went.  When one or two cylinders need work, it's always best (and cheaper in the long run) to do all of them at the same time.

Indeed, the first time it happened I was still in college and had forked over $5500 to an asshole who selling me a Jeep with a blown head. I didn't know it of course. So when we replaced the head and opened it up and saw the burned piston I replaced what I could afford to. From that point, there were no shortcuts taken because the motor blew completely and was replaced with a rebuilt motor.

Essentially what occurred the first time was the head was cracked, fuel was dumping in there cause it wouldn't start. I had hotter spark plugs and ended up with a detonation which damaged piston #1 and possibly #2. Head and psitons were replaced but, coolant somehow traveled to the oil pump, killed it and detonated the motor which took pistons 3 and 4. At least, that's what we think occurred. It was back in 2008.

[sharpxmen]

Not quite 50k

that's very low, i would still call the people you bought it from regardless of how long its been - my guess they did a patchup job and not a full rebuild or who knows what parts they used (although rings and pistons are fairly cheap so i don't know what they would have saved on those).

[Jeffy]

that's very low, i would still call the people you bought it from regardless of how long its been - my guess they did a patchup job and not a full rebuild or who knows what parts they used (although rings and pistons are fairly cheap so i don't know what they would have saved on those).

Most rebuilds have a mileage as well as a time limit on the warranty though.  I'm sure they'll say they can't do anything.

[sharpxmen]

Most rebuilds have a mileage as well as a time limit on the warranty though.  I'm sure they'll say they can't do anything.

it doesn't hurt to ask, you never know.

[stan98tj]

7yr 70k is the warranty. I have to check into it as when I bought the motor, I didn't have much money left and didn't buy the extended warranty. At any rate, even if they would honor it, I would rather get money back than put another 4 cyl in there seeing as the last two 4cyl ended up failing on me, the first at 89k and this one now is on its way out at barely 50k. It just seems like a waste to put the effort into swapping another one in or even rebuilding. The shop I just got it back from advised I not put any more money into the engine. On the downside, they aren't going to warranty any of the seal/gasket work they did because according to them it will leak regardless due to excessive crank case pressure.

[dwtaylorpdx]

Man bad luck ,, I rebuilt my engine at 125K (It had a BAAAD weekend.. ) and 80K later still going strong.

Mine is stock rotating parts with Hesco cam, springs, timing chain. Engine B&B with basic head work.

Good Luck!

Dave