Need some Tech Advice on Camshafts

Michael,
I can't say enough good things about you man. My wife was even telling my friends over the weekend about what a great help you guys have been to me.

Thank you so much, I really truly can't say enough.
 
Michael,
I received the rocker arm assembly last night and I am very pleased with what you did. Thank you thank you thank you. I can't say enough about you guys, you're the best!
 
michael mayben said:
too bad about the pushrods!

Here's a pic of your "clean" rocker assembly. If you had mounted this one the results would have been disastrous!

The debris shown in the pic is the stuff that I managed to gather as I peeled the parts off the shaft, the majority of the stuff is on the floor!

As I've said before, hot-tanking these assemblies does nothing other than remove some of the surface varnish. And the inside of the shaft which is really the critical item is far worse looking than this pile of debris.

And on top of the filthy condition, the actual wear points on the rocker shaft made by the boat rocker contact are not usable at all. This would have been one noisy valve train and no doubt the blame would fall on the "cam and lifters" when in reality those parts have nothing to do with this.

The pic does not show the terrible wear points on the shaft, but trust me, this one is not useable as a "boat" rocker shaft .

The "oil feed" rocker stand that you saw that still had partial clogging after being vatted, is actually completely clogged deep inside. This rocker assembly could not have been oiling at all, that leads to rapid wear on the shaft where the rockers ride at the two tiny points.

Internally, the shaft is even worse than what you can see on the surface here. I've not popped the plugs out since it May be wasted anyway.

The other shaft is of course a "welded" rocker assembly, it's equally as filthy and hasn't been pre-cleaned at all. Four of the welded rocker "tips" that contact the valve tips are worn beyond use, and as we've discussed, currently we don't have a source for remanufacturing those items.

So here is what I can do for ya...

I have some nine stand rocker shafts that though too worn to use as welded rocker shafts, can be turned upside down and used as boat assemblies. I will clean the best of those internally, re-plug, and then assemble a nice boat rocker assembly for ya. I absolutely gayrontee this will work and would do it for my own engines if need be.

And in consideration of your budget, I'll simply "trade" with ya for the welded rocker parts of which some are usable down the line. We can always use bits and pieces as the stuff eventually adds up to a full set. I'll cover the return shipping back to ya so you won't incur any additional expense about this deal and you'll end up with a rocker assembly of nice quality.
Click to expand...

I just love reading this post. Man, talking about making a person feel good about doing business with a company. It's things like this that makes everything worth while.

Thank you again michael
 
Guess what?

You guessed it! Camshaft has arrived!!! Time to start putting this baby back together!!!
camshaftarrived.jpg
 
mumpy said:
guess what?

You guessed it! Camshaft has arrived!!! Time to start putting this baby back together!!!
camshaftarrived.jpg
Click to expand...

Oh shit!

This is gonna git real interesting now!

Did that machine shop take care of the cam bearing dealybob??

I feel a major learnin' 'spiriment coming on....
 
Taking it in here in about 30 minutes. Can't wait to get started putting this bad boy back together!
 
Michael,
just a quick update. I took the engine to the machine shop yesterday morning and made them fix it while I watched as well as doing it exactly as I told them to do it. You'll get a kick out of this, I pulled up the post on my iphone and read verbatim to the shop dude your explanation on how to fix the issue. He fixed it, let me inspect it and then said, you know as long as there isn't more of a lip about the depth of the thickness of a quarter you're fine and as long as you have 80% more of a hole you'll be ok as well. I simply smiled and said, yea, they said you'd say something like that and left.

Anyway, last night I installed the camshaft, backplate, timing gears, oil pump, head, lifters, rods, rocker arm assembly and torqued everything to spec.

Tonight I plan on just about having it all together and ready for the priming instructions.
 
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Knowledge is power dude!

And I'm sure the machine shop guy would pull the engine back out, tear it down, and eat all related charges, and reimburse you for your labor for re-doing that engine since it would have mucho "lifter rattle"...not. They would blame the fail on "that dam smartazz customer didn't know what tha hail he was doin'".

If the original design/installation of probably close to half a million+ or so of the #5 cam bearings didn't matter to the "factory", they would not have engineered the way they were meant to be! Does the "factory" ever scruu up? Of course they do, but then the issue gets fixed. This was the truck bizznizz,...not the typical deetrot "big 3 don't give a shit" passenger vehicle bizznizz that is still prevalent today!

These engines were for working vehicles making wages for someone, their owners would have never tolerated engine failure (lubrication-related) when they were running fleets of five>fifty of these motors back in the day! If even one failed due to a manufacturing issue, they all would fail and the fleet owner woulda stuck 'em all up the dealer or factory branch butt!

Anyway, let's move forward.

Here's your own personal copy of the "pre-oil" document. While it is somewhat more involved than what you are doing, the process is exactly the same.

You have now seen exactly how the feed hole in the #4 cam journal aligns only twice per each full revolution of the camshaft to allow oil to feed through the rocker assembly. So you must use extreme patience in carefully rotating the crankshaft to hit that "sweet spot", don't get anxious, don't get in a hurry, take your time. Once you hit the spot, oil will slowly start oozing form all the clearance voids throughout the entire rocker assembly. Keep spinning the oil pump for at least 15 minutes once you observe oil drool, the engine will be very appreciative of your efforts in the end!!

You will also be able to look down past the pushrods into the lifter gallery and see oil flooding...if that cam bearing had not been re-positioned, the oil flow at that point would not be sufficient when the engine was actually running. This attention to detail insures success in an engine build!!

And for when you are really bored but feeling super-educated....look through this thread and you will see an example of that old adage..."you are not alone"!:

http://www.forums.IHPartsAmerica.com/gas-engine-tech/2694-no-oil-driverside-head.html
 

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Mark, I have a question for ya. This morning I went in the garage to fire her up to see how well she started cold and on the start up there was a tick for about 2 seconds before it quietened down. Is this normal? Should I be concerned with that? Thank you for your help.
 
That momentary tick is fairly standard on the IH sv and 1/2 sv engines. Don't sweat it. Sounds excellent in your video. They don't get any better.:thumbsup:
 
Well the crankover sounds nice! And then it starts, and then it runs!

Don't get any better!

You've come a long way in just a few short weeks, now go have some fun before beginning phase II!
 
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