Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . .
03-14-2003, 04:33 PM
#1
Melting Slicks
Thread Starter
Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . .
Just thought you might like to see the results.
This happened today while I was road testing an Edelbrock #1904 replacement carb.
Unless I can find a single replacement, I will have to buy a whole new set of 'hardened' pushrods.
This happened today while I was road testing an Edelbrock #1904 replacement carb.
Unless I can find a single replacement, I will have to buy a whole new set of 'hardened' pushrods.
03-14-2003, 04:40 PM
#3
Safety Car
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (Brettmc)
I second the ouch! That looks like a stock pushrod. Gotta get some crome moly ones for use with guide plates. At least thats what I was told to do when I installed guideplates.
03-14-2003, 04:45 PM
#4
Safety Car
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (Jvette73)
Also, when I installed my guide plates a few of the slots didnt line up perfectly causing a bind against the side of the pushrods. The ones that were slightly out of whack got a gental shave job with a dremel till they felt better. ive had the valve covers off several times to check and all is still ok.
03-14-2003, 04:47 PM
#5
Melting Slicks
Thread Starter
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (Jvette73)
These are Comp Cams brand, heat treated, hardened for use with guideplates, and feature welded on tips.
It probably wouldn't have survived 4000 miles of use if it were a non-hardened rod. I simply did not align the guide plate properly.
I'll do better next time! :smash:
It probably wouldn't have survived 4000 miles of use if it were a non-hardened rod. I simply did not align the guide plate properly.
I'll do better next time! :smash:
03-14-2003, 04:48 PM
#6
CFOT Attention Whore
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (MIKER)
YUK! just tell me you have a nice, fat magnet in the oil pan.
03-14-2003, 04:56 PM
#7
Safety Car
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (MIKER)
Miker, those pushrods that you have were the same ones Comp Cams sent me with my cam kit. Luckily I inspected them before installing them and im totally honest when I say this, I found two of them bent right out of the package. I sent them back obviously and went with Trick Flow crome moly with pressed in tips. I had posted a warning on this way way back. I wonder if you got defective bent rods too?
03-14-2003, 05:13 PM
#8
Melting Slicks
Thread Starter
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (Jvette73)
Clutchdust, I do keep a couple of really stout magnets on my oil filter. It's a shame that the engine had to ingest all those metal filings but I'm not going to worry too much about it.
Jvette, I suppose it's possible that my pushrods were/are defective but there's NO doubt that I failed to align the guide plate properly. . . MY BAD!
I will re-align, replace, button her up and drive the crap out of it!
Jvette, I suppose it's possible that my pushrods were/are defective but there's NO doubt that I failed to align the guide plate properly. . . MY BAD!
I will re-align, replace, button her up and drive the crap out of it!
03-14-2003, 05:26 PM
#9
Safety Car
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (MIKER)
Miker, now that my foggy memory is comming back, two of the rods were bent and another had the tip welded on off center. I could see it wobble when I rolled it across a flat surface. Must be some dis-gruntled employees down there or somthin. Im still usin Comp Cams cam&lifters, springs, and roller tip rockers, but im stayin away from them pushrods.
:eek: :mad
:eek: :mad
03-14-2003, 06:26 PM
#10
Race Director
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (Jvette73)
I had a problem with those same pushrods, the ballls on the end simply wore down, I replaced them with the Magnum rods ( twice the price ) and have not had any more problems.
Also I didn't think you could misalign them because they bolt to two studs at a time unless of course you use 7/16 in. guide plates on 3/8 in. studs. :D
[Modified by MotorHead, 5:35 PM 3/14/2003]
Also I didn't think you could misalign them because they bolt to two studs at a time unless of course you use 7/16 in. guide plates on 3/8 in. studs. :D
[Modified by MotorHead, 5:35 PM 3/14/2003]
03-14-2003, 06:39 PM
#11
Melting Slicks
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Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (MIKER)
Your pals at Summit can help you. When you check the part number of the pushrods that you have you will notice that there is a -16 after the part number. Enter the same part number with a dash one (-1) and you'll get a price for one pushrod. Not all valvetrain componets are available that way though.
03-14-2003, 08:25 PM
#12
Melting Slicks
Thread Starter
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (MotorHead)
Also I didn't think you could misalign them because they bolt to two studs at a time unless of course you use 7/16 in. guide plates on 3/8 in. studs. :D
Hearing that both Jvette and Motorhead have had problems with this same pushrod does worry me a little.
Thanks for the tip 1979toy.
03-14-2003, 08:52 PM
#13
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (MIKER)
Also I didn't think you could misalign them because they bolt to two studs at a time unless of course you use 7/16 in. guide plates on 3/8 in. studs. :D Hmmmmm! I thought that there was some slack which allowed moving the guide plate a little before tightening the studs. If not, I guess that I will use my Dremel to tweak it just a bit.
The head side of rocker studs are the same wether they are 3/8 or 7/16 studs. Only the rocker side changes. Some guide plates are made so they can be moved around slightly for adjustment depending on the amount of filet on the underside of the stud.
03-14-2003, 09:08 PM
#14
Race Director
Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (Pete79L82)
Yes you are right forgot about that should have remembered as I had 3/8 studs and changed them to 7/16 without changing the guide plates :bb
03-15-2003, 01:07 AM
#15
Le Mans Master
Member Since: Oct 2002
Location: Las Vegas - Just stop perpetuating myths please.
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Re: Mis-aligned guide plate + 4000 miles + high RPM wind-up = . . . (MIKER)
But are those hardend or chromoly pushrods? Or plain stock pushrods? Rumor says guideplates eat stock pushrods.
No rocket sience to fit them. Pushrods should just slide easily in slots without friction. Just work old pushrod side to side to loosen fit in slot. ;)
No rocket sience to fit them. Pushrods should just slide easily in slots without friction. Just work old pushrod side to side to loosen fit in slot. ;)
