yella terra rocker install
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
yella terra rocker install
i will be installing the 1.7 rockers along with ls2 valve springs and trick flow pushrods this sunday. i will be taking pictures along the way.
Last edited by mrr23; Jul 12, 2014 at 06:28 AM.
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
Take a look at this installation video:
http://m.youtube.com/watch?v=xYuZa2F0ZpM
If you are running an aftermarket cam you may need to utilize the supplied shims.
Also, don't use their torquing method, rather make sure each cylinder is TDC on the compression stroke.
Even without using the shims you may want to verify your pushrod length. When I test fit mine I had about .020" less preload. If you use the shims you will definitely need longer pushrods.
http://m.youtube.com/watch?v=xYuZa2F0ZpM
If you are running an aftermarket cam you may need to utilize the supplied shims.
Also, don't use their torquing method, rather make sure each cylinder is TDC on the compression stroke.
Even without using the shims you may want to verify your pushrod length. When I test fit mine I had about .020" less preload. If you use the shims you will definitely need longer pushrods.
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
some pics of progress
covers removed
passenger side coil pack removed
driver's side coil pack
the hard to reach driver's coil pack bolt behind the alternator. used a 10mm gear wrench
removing driver's #1 spark plug
driver's side rockers
covers removed
passenger side coil pack removed
driver's side coil pack
the hard to reach driver's coil pack bolt behind the alternator. used a 10mm gear wrench
removing driver's #1 spark plug
driver's side rockers
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Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
well the crap ebay tool is just that. good thing i have contacts at vinci high performance and picked up a real dual spring tool to get this done today. doesn't center well. have to pry it around to get the locks in. almost doesn't compress enough to do that. wasn't whittled away enough in the retainer area so it's sits lope sided on it.
Last edited by mrr23; Jul 13, 2014 at 07:11 PM.
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
here's what the vinci spring tool looks like on the spring retainers. self centers on the head and retainers. more than enough thread to compress the spring to get the keepers out.
Last edited by mrr23; Jul 13, 2014 at 07:11 PM.
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
old springs off
nice to see rust on the old springs
new springs on
yella terra rockers on
driver's valve cover clean and on
nice to see rust on the old springs
new springs on
yella terra rockers on
driver's valve cover clean and on
Last edited by mrr23; Jul 13, 2014 at 07:11 PM.
Safety Car
Joined: Aug 2011
Posts: 4,449
Likes: 409
From: Portland OR
Those are the older style YT rockers. Will be fine I'm sure because you are using light stock springs.
What led you to do this upgrade vs simply adding trunion kit to the stock rockers? And why not go to a little better spring?
Just curious
Ron
What led you to do this upgrade vs simply adding trunion kit to the stock rockers? And why not go to a little better spring?
Just curious
Ron
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
Springs $50.00 used forum vendor.
Here's a write up about stock rockers and how they really don't start at 1.7 off the seat and eventually get to 1.70 almost at the max lift.
http://vincihighperformance.com/LS1%...HTML#quicklift
Not to mention aftermarket heads come with bronze valve guides and stock rockers will ruin them in no time. (Later upgrade)
If I ever change from stock cam I'll get better springs.
I did this now because of 111k on the clock and a slight miss. Good thing I did as you can see in the pics where #2 cylinder exhaust rocker twisted on the pedestal mount. won't ever have this happen again.
Last edited by mrr23; Jul 13, 2014 at 07:24 PM.
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,092
Likes: 120
From: orlando florida
St. Jude Donor '15
just for the record. no shims and no hitting the stock covers with baffles still in place.
another side note. the shims aren't there to correct lifter preload. they are used to correct valve tip placement. you correct lifter preload with different pushrod lengths. refer to the video to hear that explanation.
another side note. the shims aren't there to correct lifter preload. they are used to correct valve tip placement. you correct lifter preload with different pushrod lengths. refer to the video to hear that explanation.
Last edited by mrr23; Jul 13, 2014 at 07:23 PM.
