Did Seer visit your house? At any time?
Wow that is nuts. How would it only go in one bank vs all over the place? That is the weirdest thing I have heard. Crazy.
That's what Im saying!
So sorry to hear about this.
I don't remember what compression you're at but maybe it's time to step the compression up now that you are on E85. I'm shooting for 11:1 on my new build with an iron block but I'm not going for high HP like you, I just want to keep running the lowest boost I can to keep my IAT's down when racing. I got a full set of Manley pistons for 1/2 the cost of what my Diamond pistons cost from my last engine so it may be something to consider.
I was thinking about raising the comp as well. That would involve 8 pistons instead of 4 and a rebalance. I am leaning towards that route with new rings though. I am in no hurry at this point. I would want to stay with an off the shelf Manley piston.
So what does the bolt go to? Or is it just a random bolt you have more of?
It is just some random bolts from my bolt drawer.
Bolts always travel between cylinders, that was one of the first things that I found an interesting mystery when working at a racing mating shop. Happens almost every time. I think it has something to do with overlap and the and cam timing. I mean it has to exit the cylinder when the compression stroke is setting up or some thing like that.
That's what I am thinking. In boost then out of boost, at 23 psi it can move air in many ways.
IMO, they "could" be reused, but I wouldn't. Those rings are alreaded seated to those bores. If the cylinders are fine, I'd scuff them up and use new rings.
my $.02
sorry this happened Billy.
At this point I think I am going with all new rings, new pistons, and rehone the block.
racing machine shop* I once asked the guy I work for about it, he said it was common in loose bolt scenarios. He said he'd seen it more then once where someone walked by a motor in the pits and just dropped one in.
Makes since.
I'm still not understanding how a bolt can travel from one cylinder to the next. There's only one way in and one way out of the cylinder. If the bolt exits out the exhaust valve opening then how can it travel down the header tube, back up the next header tube and into the next cylinder? If it bounces out the intake valve then it will still have to travel back up the intake port against the intake airflow until it gets to the intake manifold, then jump over into the next intake port. Neither of these are plausible unless you believe in magic and fairy tales.
IMO there would have to be a separate cause for the damage in each cylinder. Four destroyed cylinders means at least four separate pieces of foreign material. At that point it seems the likelihood of this being an accident is very very small.
There is pressure both directions while going in and out of boost. That is the best thing I can come up with.
wwo thats fucked up!! sorry to hear man.
I'm also a bit puzzled by how a bolt can go in and out of the cylinders from behind the valves and just travel like that without getting hung up in just one cylinder, that's some sorcery shit.
Weird for sure!
When it rains it pours. Sorry to hear. This keeps up you will be using velcro motor mounts. Good luck with the re-re-rebuild. I can't imagine how you are keeping your head up through all this.
Im not! This is fucked up. I don't deserve this shit! LOL
Sorry to hear this. What a nightmare.
I wish it was.
To answer your question,
The rings have established a wear pattern with the cylinder. To seat again, they will have to establish a new wear pattern. They may not want to do that after being work hardened and tempered with the heat cycles you've already put them through. And if they do, the slight material loss will inherently reduce ring tension and widen the ring gaps. It may not be a big deal in a dirt track small block Chevy that gets rebuilt once a month, but if you plan on this engine making good power and lasting a long time, I would just put a new set of rings in it.
Besides, if the pistons are damaged in any way, the likelihood of getting 16 usable compression rings out of it is just about zero.
At this point I agree. I will get all new rings. And pistons if I change CR.
Exactly, that is what I can't wrap my head around. My firing order is 15426378. That means often opposite banks are firing and therefore if the bolt was kicked out while the intake valve was open, then why only one side.
You said bolt head, where is the rest of it? I am thinking that is the only thing left but there was more which was blown out of the exhaust which you will never find?
You said you have more of these bolts. What is the bolt used for in the car?
The bolt is just some random shit I have. Nothing to do with the motor build.
So sorry to see this.
Usually is puked out of one cylinder due to reversion and sucked by the next closest one that is on intake.
How big is this bolt?
It is about 3/4 long and maybe a #8 SS bolt.
damn... Once upon a time we had an intake off, placed into a box. Box was not covered well enough and somehow a M8 nut was dropped and found its way into the intake. Fortunately we heard it rattle when we were placing the intake on the motor. Would have been same result..
I hate to hear that man but human things happen. Glad you did not swap ends tho.. that would have been bad and another reason I am going with a diaper for the trans/oil pan...
Dont know how I can help but just ask if you can think of anything you may need
That water under the tires really woke me up to the " do I really need this shit to get bake together this fast frame of mind". Pretty scary!
Sorry to hear Billy, that is odd that it remained on 1 bank only but I guess your lucky it didn't beat the crap out of the heads and valves.
As other asked, is this just something that feel out of your toolbox or have you identified where it was used ?
The heads have some pretty good damage. Nothing that will effect performance though after they are cleaned up.
Like others have said, its weird that the screw made it into multiple cylinders. If it was one bolt, what could have ground it up in the intake?? nothing... that I can think of.
I would take a serious look at your blower, that can grind bolts and send them on their way. Good luck. Sorry about your luck.
No way it came from the blower. I would never make it past the I/C.
When I Fk up my aluminum block motor last spring it only had a few hours on it. I re-used the rings in the iron block build without any problems.
I wouldn't be afraid to re-use the rings in your case.
At this point I will just go though it all again.
Damn, sucks to hear it man!
Thanks. I am loading the pics now.
