Wish me luck...
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Joined: May 2008
Posts: 21,025
Likes: 12,547
From: South Carolina
The engine has hydraulic lifters, much like many automobiles, and you don`t see adjustable pushrods used on any pushrod equipped cars, ever...
The piston in the lifter has the same oil pressure inside, no matter what position in the bore it is. How do you figure you can change this by adjusting the pushrod length?
I think most of the valvetrain noise that people are trying to solve by playing with adjustable lifters is not lifter noise at all, but excess backlash between the cam and pinion gear.
Adjustable pushrods do not add any performance to an engine, if fact they are heavier, so you are adding reciprocating weight in the valvetrain.
The piston in the lifter has the same oil pressure inside, no matter what position in the bore it is. How do you figure you can change this by adjusting the pushrod length?
I think most of the valvetrain noise that people are trying to solve by playing with adjustable lifters is not lifter noise at all, but excess backlash between the cam and pinion gear.
Adjustable pushrods do not add any performance to an engine, if fact they are heavier, so you are adding reciprocating weight in the valvetrain.
Last edited by Dan89FLSTC; May 9, 2015 at 09:56 AM.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,004
Likes: 7,539
From: Poolville
The engine has hydraulic lifters, much like many automobiles, and you don`t see adjustable pushrods used on any pushrod equipped cars, ever...
The piston in the lifter has the same oil pressure inside, no matter what position in the bore it is. How do you figure you can change this by adjusting the pushrod length?
I think most of the valvetrain noise that people are trying to solve by playing with adjustable lifters is not lifter noise at all, but excess backlash between the cam and pinion gear.
Adjustable pushrods do not add any performance to an engine, if fact they are heavier, so you are adding reciprocating weight in the valvetrain.
The piston in the lifter has the same oil pressure inside, no matter what position in the bore it is. How do you figure you can change this by adjusting the pushrod length?
I think most of the valvetrain noise that people are trying to solve by playing with adjustable lifters is not lifter noise at all, but excess backlash between the cam and pinion gear.
Adjustable pushrods do not add any performance to an engine, if fact they are heavier, so you are adding reciprocating weight in the valvetrain.
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Joined: Apr 2012
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From: North Florida
Seasoned HDF Member
Joined: May 2008
Posts: 21,025
Likes: 12,547
From: South Carolina
You don`t have to agree with me.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,004
Likes: 7,539
From: Poolville
K.. Point noted....
Seasoned HDF Member
Joined: Oct 2007
Posts: 56,052
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From: Western South Dakota
Don't forget to square up the jugs too.
http://www.nrhsperformance.com/tech_...assembly.shtml
and http://www.enginebuildermag.com/2007...-heads-blocks/
http://www.nrhsperformance.com/tech_...assembly.shtml
and http://www.enginebuildermag.com/2007...-heads-blocks/
Last edited by lionsm13; May 9, 2015 at 12:52 PM.
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Novice
Joined: Oct 2014
Posts: 22
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From: Michigan
And besides, I was really just begging for luck and prayers anyways. lol
Road Warrior
Joined: Mar 2007
Posts: 1,959
Likes: 2
From: Florida
I have quick install push rods on mine. On a test ride after installation, two of them loosened up, talk about noisy! I pulled into a park, and with a 1/2" and a 7"16" wrench, and something to hold up the covers, I was back on the road in a short time. Just make sure they're tight. If I had it to do over again, I'd put the stock back in.
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Novice
Joined: Oct 2014
Posts: 22
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From: Michigan
Well I managed to get it tore down and the head gasket was blown for sure.
Really worried that one of the head bolts was finger loose when I go in there but that was where the head gasket was blown. The base gasket came off in many pieces as well.
Heads and jugs were sent off to the machine shop and should have them back tomorrow or Friday. Really hoping everything bolts back up fine this weekend.
Question: I heard some say I should replace the head bolts but I thought I read somewhere on here that it is not required. Thoughts?
Really worried that one of the head bolts was finger loose when I go in there but that was where the head gasket was blown. The base gasket came off in many pieces as well.
Heads and jugs were sent off to the machine shop and should have them back tomorrow or Friday. Really hoping everything bolts back up fine this weekend.
Question: I heard some say I should replace the head bolts but I thought I read somewhere on here that it is not required. Thoughts?