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Valve tip wear

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richter69
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Post  ford385 October 5th 2010, 11:32 am

Been working on a 545 with SCJ heads. I've been fighting a constant tick and at closer look found whats in the attached pictures.

The engine has about 7-800 miles on it. Should I be concerned with the wear patterns?

Valve tip wear Cimg0810

Valve tip wear Cimg0910

Valve tip wear Cimg0911

Valve tip wear Cimg0912

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Post  chuck stevens October 5th 2010, 12:48 pm

Looks like the studs are off a little. Shocked

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Post  richter69 October 5th 2010, 12:50 pm

I'd put a girdle on it.................. Idea

Need to move the guideplates around to better center the rollers on the tips.


Last edited by richter69 on October 5th 2010, 12:53 pm; edited 1 time in total
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Post  the Coug October 5th 2010, 12:52 pm

richter69 wrote:Put a damn girdle on it.................. Idea


Bingo I think every engine used for any performance should have a Rocker Stud Girdle in use....


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Post  ford385 October 5th 2010, 12:55 pm

How about the wear? Should i be concerned with it or can I jsut put it back together with the girdle; if so, how long should i expext it to last?

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Post  chuck stevens October 5th 2010, 9:38 pm

I kinda doubt that you'll find a stud girdle that will fit...with the studs at the wrong angle.javascript:emoticonp('Shocked')

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Post  cool40 October 5th 2010, 9:42 pm

my A460's did the same thing with girdle's.the studs are not the same angle as the valves and maybe some side load on them.you'd think you would'nt have this kinda problem on shit that cost so much.
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Post  ford385 October 5th 2010, 9:52 pm

Really. So are you saying the stud girdle isn't going to help anything and I jsut have to live with it? What is part number for the SCJ stud girdle?

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Post  cool40 October 5th 2010, 10:00 pm

ford385 wrote:Really. So are you saying the stud girdle isn't going to help anything and I jsut have to live with it? What is part number for the SCJ stud girdle?
i dont know if the girdles would help but sure they wont hurt.your studs may be the issue,do the rockers ride up on the threads any?looks kinda like they do in the pic's.if so,that wont work too well.
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Post  ford385 October 5th 2010, 10:10 pm

Actually they do ride on the the threads a little. Even the fulkcum has thread marks on the inside of them. Is that not ok? Is it hte studs or the rockers that's the problem? The studs come in teh heads from Ford Motor Sports.

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Post  cool40 October 5th 2010, 10:15 pm

call Lem and get some tfs studs and you'll be good on that part.whats your spring psi? cam size? rpm? you may not need a girdle.
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Post  richter69 October 5th 2010, 10:16 pm

I wouldn't sweat the riding on the threads, I'd be riggin me up somthin to make sure the studs are straight as mentioned. Once the problem is addressed then yes a girdle is a real good idea. Pics are hard to make out........for me anyway.
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Post  cool40 October 5th 2010, 10:26 pm

richter69 wrote:I wouldn't sweat the riding on the threads, I'd be riggin me up somthin to make sure the studs are straight as mentioned. Once the problem is addressed then yes a girdle is a real good idea. Pics are hard to make out........for me anyway.
dam i thought you's a a-1 HeRo ford tec? you would'nt sweat the riding on the threads? Laughing
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Post  ford385 October 5th 2010, 10:36 pm

Rev limmiter at 6200

cam is a xe284H. 284/296 and 240/246 @ .050 584/588 lift.

Springs a m-6513-a351 (135@1.85 and 394@1.175) from Ford Racings website.

Out-of-the-box m-6049-scjA heads

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Post  richter69 October 5th 2010, 10:39 pm

Maybe it needs shaft rockers....................... Razz
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Post  bb429power October 5th 2010, 10:43 pm

Was the area in which the hex of the studs machined at all? It could have been a crappy machine job or the studs are bent a little. I don't know, trying to figure it out.
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Post  cool40 October 5th 2010, 10:49 pm

richter69 wrote:Maybe it needs shaft rockers....................... Razz
Shocked dont get that shit goen again! Laughing
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Post  cool40 October 5th 2010, 10:56 pm

ford385 wrote:Rev limmiter at 6200

cam is a xe284H. 284/296 and 240/246 @ .050 584/588 lift.

Springs a m-6513-a351 (135@1.85 and 394@1.175) from Ford Racings website.

Out-of-the-box m-6049-scjA heads
i dont think you need girdles,you need studs.IMO.just slide a rocker on the stud where it's been running and see how it moves on the threaded part,then move it on down to the "shank",below the threads,and see how it fits.the tfs studs are longer "shank". Smile call Lem,he'll take care of you.
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Post  ford385 October 5th 2010, 11:09 pm

I did as you said but I'm unable to tell any differnce in the "slop" form the thread area vs. the shank area of the bolt. I did see that even with the rocker pushed all the way down, none of he striaght shank is showing - just threads.

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Post  ford385 October 5th 2010, 11:11 pm

i'm using PRW brand rockers. Are these any good, should I change them out. If so to what and which part number?

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Post  cool40 October 5th 2010, 11:23 pm

ford385 wrote:i'm using PRW brand rockers. Are these any good, should I change them out. If so to what and which part number?
i dont know anything about prw rockers.are they 1.73?
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Post  ford385 October 5th 2010, 11:27 pm

I actually have two sets here. The first set said 1.72 and secound set said 1.73; they both said 460 on them. The 1.73 are clearance better around the pushrod side. They seem a little sloppy. When installed I bet they move sided to a good 1/8 inch at the valve tip

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Post  cool40 October 5th 2010, 11:38 pm

ford385 wrote:I actually have two sets here. The first set said 1.72 and secound set said 1.73; they both said 460 on them. The 1.73 are clearance better around the pushrod side. They seem a little sloppy. When installed I bet they move sided to a good 1/8 inch at the valve tip
sometime you get what you pay for but i run crower and girdles and have your problem too,so............
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Post  ford385 October 5th 2010, 11:40 pm

crap! do you have excessive valve train noise as well, or just the miss alignment? Should I jsut leave it as is then and not worry about cutting the guide plates to get things closer?

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Post  ford385 October 5th 2010, 11:45 pm

how about the scorpion rockers?

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