T&D rockers and pushrods rubbing?
01-14-2003, 05:38 AM
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T&D rockers and pushrods rubbing? I'm wondering if anyone has had this problem?
Pic here.
I have set the stand height correctly, and was just about to dummy up and check P-V clearance and found this.
I put the stock rocker in place and it's perfect! Any help would be greatly appreciated.
Peter.
Pic here.
I have set the stand height correctly, and was just about to dummy up and check P-V clearance and found this.
I put the stock rocker in place and it's perfect! Any help would be greatly appreciated.
Peter.
01-14-2003, 07:13 AM
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Re: T&D rockers and pushrods rubbing? Don't have any experience with them but looks like you might have to break out the dremel and do some clearancing to the rail.
01-14-2003, 09:04 AM
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Re: T&D rockers and pushrods rubbing? That is very common. You'll have to open up the pushrod holes and clearence the valvecover rails to use the T&D Rockers. Hope this helps...
01-14-2003, 10:51 AM
#4
Re: T&D rockers and pushrods rubbing? The ARE heads that I have have been massaged in that area to provide the needed clearance. I'll snap a picture for you.
<img src="http://www.teamnwracing.com/images/parts/tdclearance.jpg" alt=" - " />
<img src="http://www.teamnwracing.com/images/parts/tdclearance1.jpg" alt=" - " />
Ryan K.
<img src="http://www.teamnwracing.com/images/parts/tdclearance.jpg" alt=" - " />
<img src="http://www.teamnwracing.com/images/parts/tdclearance1.jpg" alt=" - " />
Ryan K.
01-14-2003, 11:18 AM
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Re: T&D rockers and pushrods rubbing? Great! Thanks guy's.
Ryan, Thanks for the pic's. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Peter.
Ryan, Thanks for the pic's. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Peter.
01-14-2003, 11:56 PM
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Re: T&D rockers and pushrods rubbing? Check your rocker geometry...stand height by the checking gauge isn't everything.
Longer p/rod maybe required. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Longer p/rod maybe required. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
01-15-2003, 05:53 AM
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Re: T&D rockers and pushrods rubbing? Check your rocker geometry.
After using the supplied GUAGE, I then blued the top of the valve stem and with the rocker in place, moved the valve from the seat through to the 600 lift range that I require (several times). The mark left on the tip of the valve stem is exactly in the middle. I'm happy with that. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
The pic shown at the top of this thread is with the rocker adjuster screw all the way out... I still wouldn't/couldn't torque them down at this point. (Hense the push rod is too long already) I borrowed an adjustable push rod and shortening to where I'd like to have the field of adjustment (according to the instructions) didn't help.
Last night, I spoke with one of the sponsors here, who is currently supplying me a set of LS6 heads for my 422. He said the same as the guy's above.
I'm only a dumb plumber, but with what the guy's above have suggested, it sure makes a lot of sense to me and I appreciate it.
Surely this slight modification wouldn't change the performance of the heads. Cheap insurance anyway. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
After using the supplied GUAGE, I then blued the top of the valve stem and with the rocker in place, moved the valve from the seat through to the 600 lift range that I require (several times). The mark left on the tip of the valve stem is exactly in the middle. I'm happy with that. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
The pic shown at the top of this thread is with the rocker adjuster screw all the way out... I still wouldn't/couldn't torque them down at this point. (Hense the push rod is too long already) I borrowed an adjustable push rod and shortening to where I'd like to have the field of adjustment (according to the instructions) didn't help.
Last night, I spoke with one of the sponsors here, who is currently supplying me a set of LS6 heads for my 422. He said the same as the guy's above.
I'm only a dumb plumber, but with what the guy's above have suggested, it sure makes a lot of sense to me and I appreciate it.
Surely this slight modification wouldn't change the performance of the heads. Cheap insurance anyway. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
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01-15-2003, 11:44 AM
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Re: T&D rockers and pushrods rubbing? Bust out the dremmel and elongate those pushrod holes. Visceral I think was the first person on ls1tech to have this problem and it was about a year and a half ago. I enjoyed seeing him drill out metal from his nice brand new $4000 LS6 stage 3 heads. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
01-15-2003, 06:51 PM
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Re: T&D rockers and pushrods rubbing? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Plan B:
<strong> Check your rocker geometry.
After using the supplied GUAGE, I then blued the top of the valve stem and with the rocker in place, moved the valve from the seat through to the 600 lift range that I require (several times). The mark left on the tip of the valve stem is exactly in the middle. I'm happy with that. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
The pic shown at the top of this thread is with the rocker adjuster screw all the way out... I still wouldn't/couldn't torque them down at this point. (Hense the push rod is too long already) I borrowed an adjustable push rod and shortening to where I'd like to have the field of adjustment (according to the instructions) didn't help.
Last night, I spoke with one of the sponsors here, who is currently supplying me a set of LS6 heads for my 422. He said the same as the guy's above.
I'm only a dumb plumber, but with what the guy's above have suggested, it sure makes a lot of sense to me and I appreciate it.
Surely this slight modification wouldn't change the performance of the heads. Cheap insurance anyway. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">it was only a suggestion...worked for me-10k km without issues. As you say, relieving them won't hurt.
Good luck with the LS6 heads...thought you would of gone C5R <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />
<strong> Check your rocker geometry.
After using the supplied GUAGE, I then blued the top of the valve stem and with the rocker in place, moved the valve from the seat through to the 600 lift range that I require (several times). The mark left on the tip of the valve stem is exactly in the middle. I'm happy with that. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
The pic shown at the top of this thread is with the rocker adjuster screw all the way out... I still wouldn't/couldn't torque them down at this point. (Hense the push rod is too long already) I borrowed an adjustable push rod and shortening to where I'd like to have the field of adjustment (according to the instructions) didn't help.
Last night, I spoke with one of the sponsors here, who is currently supplying me a set of LS6 heads for my 422. He said the same as the guy's above.
I'm only a dumb plumber, but with what the guy's above have suggested, it sure makes a lot of sense to me and I appreciate it.
Surely this slight modification wouldn't change the performance of the heads. Cheap insurance anyway. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">it was only a suggestion...worked for me-10k km without issues. As you say, relieving them won't hurt.
Good luck with the LS6 heads...thought you would of gone C5R <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />
