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Author Topic: push rod length  (Read 6196 times)
murphy88
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« on: July 09, 2015, 07:50:25 am »

I am working on my 347 again. .it has dart Jr steel heads..roller rockers..It has a non roller hydraulic cam...do I soak the lifters in oil for a day to fill up. .how much do I turn lock nut after the push stops spinning..When I twist it dude to side with my fingers ??thanks
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rob342
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« Reply #1 on: July 09, 2015, 08:45:32 am »

 Say What??

 
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white 92GT, with a black interior, pony rims, 5 speed with a 3.73 gear. came with a gear, exhaust, and a powerdyne. nice little cruiser, i didn't change much yet.

have tw170's, systemax II, 75mm accufab, anderson n41, t5z, ford racing 23lb billet flywheel, and a quarterhorse sitting here. cam may change
347HO
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« Reply #2 on: July 09, 2015, 09:30:33 am »

I suggest you put some new, high viscosity oil in a Ziploc with lifters, squish them around a bit right before installing.

Your pushrods should spin freely when setting the rockers.
Most give the nut another half turn for preload.
I think this depends on type of threads... 
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... it was REALLY revving at like 4K...
If I saw that thing in my rear view Im pulling over to let you by, I be scared of that thing Huh? i dont know wich car is uglier ur or mine?
Javier
Ugly?  Easy now -- that's my baby and it's got lots of unique character!  When I drop that built 445" stroker in it you won't have any time to "pull over to let me pass" because I'll have already blown past you when you figure out what the hell was that loud noise behind you . . .  
juiced coupe
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« Reply #3 on: July 09, 2015, 12:17:19 pm »

Are you measuring pushrod length or setting preload?
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
murphy88
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« Reply #4 on: July 09, 2015, 01:12:30 pm »

I am measuring  push rod length. .I have to put a black marker on tip of valve ..I have to get the wear pattern in center..I will turn the motor over 2 revolutions....do I spin the pushrod until I get drag on it ?? Then another half turn?? Thanks
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juiced coupe
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« Reply #5 on: July 09, 2015, 02:15:15 pm »

Use checking springs. If you have a lifter thats converted to solid, use it too.

Don't worry about preload. If you are running enough preload that you need a longer pushrod, you probably have other issues to deal with. Use "0" preload/lash. I wiggle the rocker while tightening the nut until the slack is gone. Its actually harder to do with checking springs, but you get a feel for it quickly.
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
murphy88
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« Reply #6 on: July 09, 2015, 08:49:38 pm »

Do these 347 need guide plates with the short pushrods ?? They don't line up perfect..
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juiced coupe
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Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #7 on: July 09, 2015, 10:18:50 pm »

Do these 347 need guide plates with the short pushrods ?? They don't line up perfect..


Yes. You can loosen the rocker studs and move the guide plates around some, but some misalignment is common. A few companies offer adjustable guide plates if needed.
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Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
murphy88
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Location: waterloo ontario

« Reply #8 on: July 10, 2015, 11:12:40 am »

What's a good intake gasket to use ??I was told a 351 w because it has bigger ports ??
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juiced coupe
Six figures worth of don't give a f*ck
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Location: Pascagoula, MS
The land mass between New Orleans and Mobile


« Reply #9 on: July 10, 2015, 03:05:39 pm »

Fel-Pro 90116. Its for 69-74 351W. Its a good gasket thats locally available.
Logged

Doing more with less, or something like that.
http://sbftech.com/index.php/topic,20009.0.html

Quote from: Monte Smith
Bottom line, if it was the hot ticket, the fast guys would do it.............they don't

You might need some Titanium rods and a flow bench!  LMAO on floor

I honestly don't get it.

I'm sweating, my heart is racing, my clutch foot is twichin', and my right arm punched the computer screen doing an involentary 2-3 shift while reading all that. 
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