My first rebuild
Melting Slicks
Joined: Aug 2012
Posts: 2,548
Likes: 379
From: Woodinville WA
Ugh! This is the first I have heard about scoring the heads.
I am going to paint the timing line just haven't got to it yet.
Back to the heads, I scuffed the block surface, put sealer around the water jackets and put the heads on. I sure hope you aren't getting ready to tell me I have to pull them and get new gaskets! Ha!
I am going to paint the timing line just haven't got to it yet.
Back to the heads, I scuffed the block surface, put sealer around the water jackets and put the heads on. I sure hope you aren't getting ready to tell me I have to pull them and get new gaskets! Ha!
Melting Slicks
Joined: Aug 2012
Posts: 2,548
Likes: 379
From: Woodinville WA
what makes that extra funny is in real life people take me too seriously - and I'm just terrible..... I tend to get them to do/believe things that, upon reflection, defy belief. An example, I sent a kid to the store to buy high-flow battery cables...
he came back, couldn't find them (shocking huh?)
So I sent him back for a cable balancer. See I had 2 cables running to the starter, and I couldn't have one cable carrying more electricity than the other.... so I needed a cable balancer..... drove 10 miles, twice, before he googled on his phone either of those items.
He got it after the second trip
he came back, couldn't find them (shocking huh?)
So I sent him back for a cable balancer. See I had 2 cables running to the starter, and I couldn't have one cable carrying more electricity than the other.... so I needed a cable balancer..... drove 10 miles, twice, before he googled on his phone either of those items.
He got it after the second trip
Pro
Joined: Nov 2012
Posts: 672
Likes: 0
From: Chesapeake Virginia
what makes that extra funny is in real life people take me too seriously - and I'm just terrible..... I tend to get them to do/believe things that, upon reflection, defy belief. An example, I sent a kid to the store to buy high-flow battery cables...
he came back, couldn't find them (shocking huh?)
So I sent him back for a cable balancer. See I had 2 cables running to the starter, and I couldn't have one cable carrying more electricity than the other.... so I needed a cable balancer..... drove 10 miles, twice, before he googled on his phone either of those items.
He got it after the second trip
he came back, couldn't find them (shocking huh?)
So I sent him back for a cable balancer. See I had 2 cables running to the starter, and I couldn't have one cable carrying more electricity than the other.... so I needed a cable balancer..... drove 10 miles, twice, before he googled on his phone either of those items.
He got it after the second trip
--but, I've been known to send helpers down 5 fights of stairs before to get a set of "sky hooks", that was funny as all---Until--- he ran into the foreman and told him what he was looking for.
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
what makes that extra funny is in real life people take me too seriously - and I'm just terrible..... I tend to get them to do/believe things that, upon reflection, defy belief. An example, I sent a kid to the store to buy high-flow battery cables...
he came back, couldn't find them (shocking huh?)
So I sent him back for a cable balancer. See I had 2 cables running to the starter, and I couldn't have one cable carrying more electricity than the other.... so I needed a cable balancer..... drove 10 miles, twice, before he googled on his phone either of those items.
He got it after the second trip
he came back, couldn't find them (shocking huh?)
So I sent him back for a cable balancer. See I had 2 cables running to the starter, and I couldn't have one cable carrying more electricity than the other.... so I needed a cable balancer..... drove 10 miles, twice, before he googled on his phone either of those items.
He got it after the second trip
The proper term is handling more "current" or "power" so I would have come back biggest wire and most expensive cables they had in the store. So they would be capable of handling current which you could say higher flow of electrons through the cable, so they would be high flow battery cables. Only joking around here
My first job while I was in high school was in a newspaper printing room and if a new guy came in the first order he got was to run downstairs and get a bucket of "periods" because we were running out, then he would be told to get the paper stretcher because we didn't have enough paper.
Thread Starter
Drifting
Joined: Aug 2012
Posts: 1,650
Likes: 2
From: Tulsa Oklahoma
So, I am attempting to adjust my valves. #1 @ TDC exhaust valve worked fine. I twisted back and forth until it grabbed then went another 1/2 turn. The intake valve, not doing the same. I dd the same process but the push rod will not tighten snug enough to stop. Any suggestions guys?
Last edited by FatCat; Jan 6, 2013 at 11:46 AM.
Pro
Joined: Nov 2012
Posts: 672
Likes: 0
From: Chesapeake Virginia
did you turn the motor so the cam had the lifter you're working on at full lift? also, I THINK I remember reading somewhere that the lift (hydraulic) should be soaked in motor oil for a while before installing them, they normally have oil in them when the motor is running. at least I think you're supposed to soak them.
Thread Starter
Drifting
Joined: Aug 2012
Posts: 1,650
Likes: 2
From: Tulsa Oklahoma
did you turn the motor so the cam had the lifter you're working on at full lift? also, I THINK I remember reading somewhere that the lift (hydraulic) should be soaked in motor oil for a while before installing them, they normally have oil in them when the motor is running. at least I think you're supposed to soak them.
Last edited by FatCat; Jan 6, 2013 at 12:27 PM.
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Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Twisting them back and forth untill they bind a little then tighten 1/2 turn is going to get you way to tight and when you start it you will either bend pushrods, pull rocker studs, immedietly wipe your cam and lifters, or break rocker arms.
You loosen everything. When the lifter is on the base circle of the cam you jiggle the pushrod up and down, tightening the rocker nut until the play is just taken up. Then 1/2 turn and don't touch it.
You loosen everything. When the lifter is on the base circle of the cam you jiggle the pushrod up and down, tightening the rocker nut until the play is just taken up. Then 1/2 turn and don't touch it.
Thread Starter
Drifting
Joined: Aug 2012
Posts: 1,650
Likes: 2
From: Tulsa Oklahoma
The only real change was the cam that would effect them I would think and it was pretty mild upgrade but maybe I should check that out.
I probably misunderstood but I was thinking the rod should not be able to move once tightened. Can u give me an idea how the rod should feel when done?
I probably misunderstood but I was thinking the rod should not be able to move once tightened. Can u give me an idea how the rod should feel when done?
Safety Car
Joined: Sep 2012
Posts: 4,688
Likes: 41
From: Palm Harbor, Florida
The only real change was the cam that would effect them I would think and it was pretty mild upgrade but maybe I should check that out.
I probably misunderstood but I was thinking the rod should not be able to move once tightened. Can u give me an idea how the rod should feel when done?
I probably misunderstood but I was thinking the rod should not be able to move once tightened. Can u give me an idea how the rod should feel when done?
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
The only real change was the cam that would effect them I would think and it was pretty mild upgrade but maybe I should check that out.
I probably misunderstood but I was thinking the rod should not be able to move once tightened. Can u give me an idea how the rod should feel when done?
I probably misunderstood but I was thinking the rod should not be able to move once tightened. Can u give me an idea how the rod should feel when done?
Scott
Thread Starter
Drifting
Joined: Aug 2012
Posts: 1,650
Likes: 2
From: Tulsa Oklahoma
The camshaft won't have any effect on how long the pushrods need to be. But, you have installed aftermarket heads, so now we have an unknown variable when it comes to valvetrain geometry. From what I have read, aftermarket aluminum heads typically need a longer than stock pushrod. You will have to do some learning about valvetrain geometry to really understand what is going on here. When you tighten down the rocker arms, all you are doing is taking up the lash in the valvetrain, it's the pushrod length that establishes proper valvetrain geometry. Think of it this way: the rocker arm has to be in a certain position in order to be able to push straight down on the valve stem, and the pushrod needs to be the right length to reach from the lifter to the rocker arm when the rocker arm is in this position. A pushrod that is shorter or longer than ideal will imkpart a side load onto the valvestem, which will quickly wear out the valve guide. Then the valve is able to move around, and it beats the hell out of the valveseat, and your valves don't seal anymore. Don't take shortcuts on this issue, it's important enough to take the time and effort to do it right.
Scott
Scott
Safety Car
Joined: Sep 2012
Posts: 4,688
Likes: 41
From: Palm Harbor, Florida
The camshaft won't have any effect on how long the pushrods need to be. But, you have installed aftermarket heads, so now we have an unknown variable when it comes to valvetrain geometry. From what I have read, aftermarket aluminum heads typically need a longer than stock pushrod. You will have to do some learning about valvetrain geometry to really understand what is going on here. When you tighten down the rocker arms, all you are doing is taking up the lash in the valvetrain, it's the pushrod length that establishes proper valvetrain geometry. Think of it this way: the rocker arm has to be in a certain position in order to be able to push straight down on the valve stem, and the pushrod needs to be the right length to reach from the lifter to the rocker arm when the rocker arm is in this position. A pushrod that is shorter or longer than ideal will impart a side load onto the valvestem, which will quickly wear out the valve guide. Then the valve is able to move around, and it beats the hell out of the valveseat, and your valves don't seal anymore. Don't take shortcuts on this issue, it's important enough to take the time and effort to do it right.
Scott
Scott
Thread Starter
Drifting
Joined: Aug 2012
Posts: 1,650
Likes: 2
From: Tulsa Oklahoma
In my discussion with Birdsmith, once at TDC you have to turn the crank approx 150* more for the adjustment after that you are a 90* crank turn for the next one to adjust in firing order. I did not correctly understand "lash" as being movement up and down and was thinking it was rotation as it pertains to the push rod.