[66SSFan]

Do you use lash caps? Thats what it looks like to me. Hope nothing is hurt too bad Kevin.

 

[Kevin R]

Do you use lash caps? Thats what it looks like to me. Hope nothing is hurt too bad Kevin.

No lash caps. Im going out in the next hour to start working again. I need to get under the car and unhook the exhaust and take out the last two trans bolts. Motor mounts and its coming out.

Here are a couple of pics of the two pieces put together and the progress I made last night. Seems like Deja Vu

 

[Brettd85]

Are you SURE its not from the rockers, pushrods or springs? It sure didnt get pumped up there, I dont see what else it could have come from. Sure looks like roughly a pushrod radius.

 

[muncher]

Maybe a piece of a cast valve cover (if you use cast valve covers)?

 

[dreis454]

piece of cam gear?

 

[Brettd85]

piece of cam gear?

How did it get up in the head?

 

[kettbo]

cup from the bottom of the rocker?

 

[justkyle]

Now that you put the pieces together, It sure looks like part of a spring. From where I have no idea, but it has the curvature of a spring.

 

[Kevin R]

Ok guys this is weird but I found nothing as far as where the two chunks of metal came from. Both heads were disassemble and I found nothing.

Well the motor is out of the car and down to a short block - the cam.

The cam and lifters look awesome and not abnormal wear at all. The cam gear is intact. Only thing is that a couple of the cam bearing had a sliver of metal hanging off of them. Timing chain is perfect along with the gears.

I pulled off the pan and didnt find anything laying in the bottom. I pulled the rear main to get the seal out and that bearing had copper showing. So I pulled the rest and a couple look good but a couple are worn. I pulled a couple of rod caps and looked ok.

I will pull the pistons and rods tomorrow and check out the rings. The bores have some skirt scratches but nothing I can feel with a finger nail.

The top of every piston has a mark on it where the exhaust valve has touched the piston. I will degree in the cam this time and recheck piston to valve clearance to see of that's it or if it has been over revved If clearance checks out we will fly cut the pistons for a bit more.

Looks like It will be a tear down, clean and freshen up with new cam bearings,main bearings,rod bearings and a crank polish.

I will also disassemble the heads completely and clean them up as they have some carbon build up on the intake valves and some in the combustion chamber.

Time frame for completion? All I can say is that it should be running by April next year.


I'm real tired right now so I will post pics up tomorrow.

 

[FourEightyNine]

Dang Kevin really sorry to hear that. How much P/V clearance did you have? Definitely check all the valves that contacted to make sure they are ok to run.

 

[Brettd85]

That sucks... I wouldnt be able to sleep until I found the part that failed, its gotta be there...

Now is the perfect time for you to do those upgrades you were talking about!

 

[Kevin R]

Dang Kevin really sorry to hear that. How much P/V clearance did you have? Definitely check all the valves that contacted to make sure they are ok to run.

Not that Darryl and I didn't in the first place but this will be gone over with a fine tooth comb. We checked PV clearance and came up with around .100 if not more. Most likely the contact is from valve float. I really need to keep the rpms lower from now on.

 

[Kevin R]

That sucks... I wouldnt be able to sleep until I found the part that failed, its gotta be there...

Now is the perfect time for you to do those upgrades you were talking about!

What that 4.25 stroke crank?

 

[justkyle]

I really need to keep the rpms lower from now on.

No way, it is way to much fun to hear them rev. Just get better valve train components.

 

[Kevin R]

No way, it is way to much fun to hear them rev. Just get better valve train components.

Thats hard to do when you have better stuff now.

 

[65lkey]

Thats hard to do when you have better stuff now.

Get more clearance:yes::hurray:

 

[FRYNTYR]

Get more clearance:yes::hurray:

Do you mean block clearance for a stroker crank,, LOL.....

 

[FourEightyNine]

Thats hard to do when you have better stuff now.

Yeah you should have plenty of P/V with over 100. And you also have plenty of spring and good components elsewhere.

I wouldnt flycut a piston because the engine was floating the valves(I would fix that problem). I would if I didnt have enough P/V.

hmm

 

[FRYNTYR]

Yeah you should have plenty of P/V with over 100. And you also have plenty of spring and good components elsewhere.

I wouldnt flycut a piston because the engine was floating the valves(I would fix that problem). I would if I didnt have enough P/V.

hmm

If I memember right Kevin had over .1 without head gaskets even on so it would be more. Maybe some ti retainers are in order for high RPM runs.

 

[Brettd85]

I didn't realize you ever floated the valves, what rpm was it happening at?