Engine knock found UPDATE

[Don W.]

Here is the damage. Number 4 rod decided to call it quits. I haven't looked at any other bearings yet. What do you think of my lift plate? I didn't make it, a welder at work made it for me. Not sure if the crank can be saved. Need to get it out first I guess.

Pullin' a Sy engine is sure fun ain't it? :roll:

 

[TYTILIDIE]

Re: Engine knock found

Re: Engine knock found

Its a lift plate, does its job right? Anyone ever tried the carb lift plates? I wonder if they can fit?

Sorry for your motor Don, what are your plans going to be when you put it back together?

 

[92TYPHOON937]

Re: Engine knock found

Re: Engine knock found

i used a carb lift plate on my elcamino didnt even try it on the ty cause it was way diff intake so i didnt even think about it

 

[Don W.]

Re: Engine knock found

Re: Engine knock found

Its a lift plate, does its job right? Anyone ever tried the carb lift plates? I wonder if they can fit?

Sorry for your motor Don, what are your plans going to be when you put it back together?

Yup, did its job just fine. We just guessed on the location of the "D" ring for balance and came darn close I thought.

Rebuild ideas are different heads, different turbo (one of those coming to look at, haven't bought it yet) different cam, stronger bottom end. That's about as general I can make it for now. :rotf: As the budget is limited whither or not the crank is salvageable will make a difference. Then, of course, there's the trans and TC to think about if I mod the engine very much.

 

[SY2455]

Re: Engine knock found

Re: Engine knock found

Don, Sorry to hear that # 4 went. Was there any warning or just all of a sudden? If you are doing most of the work yourself, can you keep a running breakdown of the parts use and the cost to rebuild? The reason I ask is that while mine still runs, I do have a spare engine that I may do on my own as time permits. And right now I don't have any spare time.

 

[Don W.]

Re: Engine knock found

Re: Engine knock found

Don, Sorry to hear that # 4 went. Was there any warning or just all of a sudden? If you are doing most of the work yourself, can you keep a running breakdown of the parts use and the cost to rebuild? The reason I ask is that while mine still runs, I do have a spare engine that I may do on my own as time permits. And right now I don't have any spare time.

Well it's hard to say but I can tell you the engine a slight "tick" for over a year. I actually thought it might have been a loose rocker. I reset the pre-load on the rockers and it didn't make any difference so I kinda figured it was a weak lifter. But one day it kida bogged at about 3/4 track (1/4 mile) quit racing that night, drove home fine. Went out to do some tuning and try to find what happened and on the first run at full throttle my tick turned into a knock. No way to know for 100% sure they were related but my gut says they were.

And, yes, I'll do what I can on the cost but I'd bet most, if not all, that info is already here with the right kind of search.

HTH

 

[Don W.]

Re: Engine knock found UPDATE

Well finally got the block completely disassembled today. Spun the two center mains. No pics but believe it or not I think the block is OK. Yes, I WILL have it align bored but it should be good. Cyls look good, pistons look good. I will have it decked and go .030 over anyway. Crank is prolly toast. Prolly replace the rods as well, they will definitely need to be reconed if not.

Although the other rod bearings were not in good shape, with two spun mains I'm amazed that only one rod bearing actually went. I guess that explains the "bog" I felt eh? :lol:

 

[Loeryder]

Re: Engine knock found

Re: Engine knock found

Sorry to hear, but its becoming more and more common as these trucks age to 17ish...

I have a slightly used Comp 412 cam with GM retainer plate and a Comp double roller timing set that came off one of Gerbers motors that he barely ran on before upgrading.

Let me know if you are interested Ill shoot you a package deal.

 

[Don W.]

Re: Engine knock found

Re: Engine knock found

Sorry to hear, but its becoming more and more common as these trucks age to 17ish...

I have a slightly used Comp 412 cam with GM retainer plate and a Comp double roller timing set that came off one of Gerbers motors that he barely ran on before upgrading.

Let me know if you are interested Ill shoot you a package deal.

Haven't researched cams yet but send a PM and we'll go from there.

Thanks.

 

[Don W.]

Re: Engine knock found UPDATE

Finally dropped block, crank, and rods/pistons at machine shop today. Main question is if the crank can be saved. Will have news next week. Plan to hit the junk yard soon looking for heads. That should be interesting.

 

[TYTILIDIE]

Re: Engine knock found UPDATE

Finally dropped block, crank, and rods/pistons at machine shop today. Main question is if the crank can be saved. Will have news next week. Plan to hit the junk yard soon looking for heads. That should be interesting.

What heads are you going to be looking for?

 

[Don W.]

Re: Engine knock found UPDATE

Presently L35's. The performance gain for me with the associated costs of the Vortec mod doesn't seem to be justified.

 

[cloneman315]

Re: Engine knock found UPDATE

I never felt safe using them plates,even more so on a fully dressed motor,I still like the chain way