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Old 07-25-2020, 09:13 PM
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Bad news

Was just told my motor has short pushrods and they are also hitting guide plates what do I do I just want to drive it already. Please give me some insight.

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Old 07-25-2020, 11:05 PM
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You're gong to have to give us more info than that.

What do you mean by "pushrods are hitting the guideplates"??... and what was the basis for the diagnosis that the pushrods were too short??
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Old 07-26-2020, 12:42 AM
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Well originally I posted about the rocker arm poly nuts Beeing deeper on two and I had someone come adjust but he only adjusted the two and said the rest were fine dude was in a rush which frustrated me so well started motor up later and just seemed a little loud tapping so in my head I'm like damn . Honestly want a good running motor without having to worry about it breaking within the first thousand miles.so found another guy that seems reliable and knows what he's doing and he inspected it and said that it's hitting the guide plates to hard and that the rollers on the rockers have marks in different spots and that they are at some weird angles the rockers so idk were to go from here. I installed everything myself and I enjoy all that and I want to learn more but when it comes to internal stuff I need some hands on experience. What should I do. Here is some photos.
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Old 07-26-2020, 12:57 AM
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Pushrods were said to be short because the rocker arm was not high enough almost level
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Old 07-26-2020, 01:17 AM
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Quote:
Originally Posted by Berto75 View Post
Pushrods were said to be short because the rocker arm was not high enough almost level
Maybe watch this and get a push rod checker.
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Old 07-26-2020, 08:04 AM
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Here's another vidoe much like Jeff's.


You need to get this to someone that has an idea how to determine correct pushrod and length and has the proper tools to do it. If you lived nearby, then I'd offer to do it for you. The entire process takes a couple of hours. Then you order pushrods and be on your merry way after a valve adjustment. Depending on where you order your pushrods from, it ight take a couple of days to get them. A good set of solid pushrods run $80-100 and the low budget stock welded style run about $40. But you cannot use the cheapies if you have guide plates.

From reading your responses in this thread and your other thread, you need to stop going back to the guy that put this together - he sounds like somewhat of a doofas. Personally , I'd be concerned about the rest of the assembly as well.

Where are you located?
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Old 07-26-2020, 10:26 AM
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Scott Foxwell's approach, the one offered up by 64nailhead, is the best video on youtube in my opinion, for establishing proper pushrod length. Scott is a guru on the subject. Pay attention, do as you're told and you should end up with a proper pushrod length.
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Old 07-26-2020, 10:37 AM
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Pushrods

This may be basic, however I have seen even very simple things installed incorrectly. Your rocker axles / trunnions where they fit over the studs have a rounded side and a flat side where the poly lock nut sits. I have seen improperly installed rockers with the rounded side of the trunnion facing up. Just something to check.
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Old 07-26-2020, 11:06 AM
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Quote:
Originally Posted by Berto75 View Post
said that it's hitting the guide plates to hard
Looks like maybe some guide plate cutting into pushrod... are those stock soft pushrods or hardened ones?
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Old 07-26-2020, 12:41 PM
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I'm in southern California. So basically I got my self in this situation I mean I bought the motor from an older gentleman that bought it from a company in Spokane WA receipt said super strokers. I have no info internally. Is it best to check the push rod geometry or should I do what this mechanic guy mentioned remove intake manifold take of valve covers and remove the rockers rods so we can check the cam as well
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Old 07-26-2020, 12:43 PM
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I'm not sure if the pushrods are stock are hardened not too experienced when it comes to that but I want to learn just need a good teacher. On disability supposed to go back to work soon . Rather work on classics for a living at home haha.
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Old 07-26-2020, 02:43 PM
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Take a high quality close up of the pushrod where it comes through the guideplates and someones here can most likely tell ya what it is.
Also, remove the rocker, pull out the push rod and post a pic of it. Note any writings on the side of it.
No need to remove the intake. I don't know where you are getting info but let us help you figuire it out cause the guys helping you aren't helping you.
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Old 07-26-2020, 03:25 PM
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Quote:
Originally Posted by Berto75 View Post
I'm not sure if the pushrods are stock are hardened not too experienced when it comes to that but I want to learn just need a good teacher. On disability supposed to go back to work soon . Rather work on classics for a living at home haha.
You should consider doing that.

You’ve been given good advice here, skip going to the shop you’re going to.

Pushrod length starts out with the exercise to determine best mid lift position of where the rocker meets the valve stem. Some fine folks set you links to videos to study. This process requires several things:

- An adjustable push rod in a length range that includes an estimate of where the length will be. These push rods are not strong enough to be used against a standard valve spring, the test valve or valves need to be disassembled and test springs installed.

- You cannot use a standard hydraulic lifter for this test. It need to be a solid of the same dimension of cup height as your hydraulic. There are substitute lifter tools sold that simulate this. Or you can solidify a hydraulic by removing its guts, then remove the push rod cup. Then fill the lifter body with a stack of washers that lets you remount the pushrod cup at the bottom of the retainer. You need to be careful not to damage the internal parts nor introduce FOD but this is actually simpler than it first appears.

- Aftermarket aluminum heads pretty much use valve stems that are .1 inch longer than OEM valves, you need to confirm your heads have the correct stem length.

- Rocker studs come in different screw lengths both top and bottom. For aluminum heads using push rod guides you need to use a stud with bottom threads as close to .75 inch as you can get.

- If this is not a competition engine I would consider using a self-guiding rocker which eliminates guide plates and provides improved centering of the roller tip on the stem tip.

- The use of guide plates requires hardened push rods, they might use the term heat treated. These can be run with self-guiding rockers as well, their hardness simply become an unused feature.

- Keep your parts organized it is important that they go back where they came from, especially with mated lifter and lobe matchups.

Bogie
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Old 07-26-2020, 03:51 PM
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I seem to remember a couple a years ago a guy in Spokane selling supposedly Race Engines and man he was a bargain till you looked inside. Shoddy work substandard parts and an attitude to boot. I sure hope that isn't the same guy. This guy used to advertise on Craigslist and E bay. I made a comment to him once and I thought he was going to come looking for me...This guy I am talking about was a real piece of work. I just can't remember his shop name..

I just did a search on the site here and jostled my memory. The guy in Spokane I was referencing to ran a shop called "Robo Racing" The guys last name was Robi or robo or something like that. Anyway I would not trust anything he builds. If I had an engine this guy built I would pull in out and tear it down completely and check all of his work. Not a lot of money involved in tearing down the engine and re assembling it making sure everything is up to snuff. Cheep insurance and if you find something else wrong you can catch it before it shows up later when you have the engine running...

Good luck on your engine.

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Old 07-26-2020, 04:46 PM
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Here is a receipt I was gave from the seller who sold it to me that said it only had 500 miles on it I bought it about 3 months back
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