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> 911 Valve Adjusters for my Type-4 2.0L?, Good Idea or Bad Idea?
ericread
post Jul 30 2009, 03:49 PM
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Somewhere earlier I saw a comment that Jake had recommended using 911 Valve Adjusters in the Type-4 engine... Or maybe he had recommended against it. I can't remember.

Anybody out there have experience in this? My adjusters and adjuster nuts were pretty gnarled when I got my car a few years ago. Now with bi-monthly adjustments, I'm looking to replace them.

Will the 911 adjusters fit the existing rocker arms? Do I need the same nuts? If I go ahead with this, should my properly adjusted valves run quieter? And is there any advantage to replacing the springs?

As a result of some moderate leaky valve guides, my plans are to have the heads re-built this winter. Should I wait until the heads are rebuilt, or is there any reason I shouldn't go ahead with the adjusters, nuts and springs right now?

Any thoughts?

My thanks.

Eric Read
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cdadaa
post Feb 14 2010, 01:35 PM
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What is the desired "finish" measurement of the shaved rocker? Every stock 1.7 rocker I've measured has a different original reading, so taking 0.060 is relative to the starting measurement. Shouldn't all of them be the same finish measurement? Or does it matter?

Thanks...Dan
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ericread   911 Valve Adjusters for my Type-4 2.0L?   Jul 30 2009, 03:49 PM
orange914   you'll need a set of 1.7 rockers and then you ...   Jul 30 2009, 04:32 PM
dlestep   you'll need a set of 1.7 rockers and then you...   Jul 30 2009, 07:58 PM
orange914   you'll need a set of 1.7 rockers and then yo...   Aug 2 2009, 10:39 PM
craig downs   you'll need a set of 1.7 rockers and then you...   Aug 3 2009, 10:24 PM
neil30076   OT - can't help on the adjusters, but i like t...   Jul 30 2009, 04:47 PM
ericread   OT - can't help on the adjusters, but i like ...   Jul 30 2009, 06:00 PM
Jake Raby   Our SCCA FP race car is also Viper Blue http://www...   Jul 30 2009, 07:33 PM
ericread   Our SCCA FP race car is also Viper Blue http://ww...   Aug 3 2009, 01:03 PM
kconway   Doesn't this potentially change the valvetrai...   Aug 3 2009, 02:38 PM
jhadler   Doesn't this potentially change the valvetra...   Aug 3 2009, 02:46 PM
Sleepin   [quote name='kconway' post='1198861' date='Aug 3 ...   Aug 3 2009, 11:05 PM
type11969   Doesn't this potentially change the valvetra...   Aug 4 2009, 10:05 AM
ericread   [quote name='kconway' post='1198861' date='Aug 3 ...   Aug 4 2009, 02:05 PM
type11969   It does not need to be precise, you can do it with...   Aug 4 2009, 02:11 PM
ericread   It does not need to be precise, you can do it wit...   Aug 4 2009, 02:33 PM
jhadler   Okay, so if I'm reading the comments right, th...   Aug 4 2009, 02:39 PM
ericread   Okay, so if I'm reading the comments right, t...   Aug 4 2009, 03:02 PM
craig downs   Umm you really need to redo the valve geometry. An...   Aug 5 2009, 01:03 AM
type11969   I disagree. If you grind the rockers down ~.06...   Aug 5 2009, 07:48 AM
Jake Raby   I would say the geometry would need to be verified...   Aug 5 2009, 07:52 AM
type11969   When you say "work properly", what do yo...   Aug 5 2009, 08:16 AM
craig downs   As Jake mentioned you need to check it. You are ma...   Aug 5 2009, 07:34 PM
type11969   I urge you to draw it out. If you don't have t...   Aug 5 2009, 08:07 PM
craig downs   The goal of proper valve geometry is the aliment o...   Aug 6 2009, 01:10 AM
type11969   Okay, if you won't draw it out . . . Crude d...   Aug 6 2009, 09:19 AM
cdadaa   What is the desired "finish" measurement...   Feb 14 2010, 01:35 PM
bandjoey   Way to go. Add these drawings to the save the tec...   Feb 14 2010, 01:51 PM
Chris Hamilton   If you need something a bit stronger than the 911 ...   Feb 15 2010, 03:10 PM
bandjoey   http://www.914world.com/bbs2/index.php?showtopic=1...   Feb 15 2010, 03:47 PM
underthetire   I here the CB ones are ok. It's the empi and b...   Feb 15 2010, 03:51 PM
Cap'n Krusty   I here the CB ones are ok. It's the empi and ...   Feb 15 2010, 04:03 PM
Chris Hamilton   The Porsche ones are good. First class. The CB...   Feb 15 2010, 05:19 PM
ME733   .............I wonder If , when you compair the tw...   Feb 15 2010, 04:01 PM
bandjoey   Sorry double post   Feb 15 2010, 04:03 PM
ME733   ............Keep Looking.......and compairing........   Feb 15 2010, 04:13 PM
Cap'n Krusty   In 37 years of working on 911s, I've never see...   Feb 15 2010, 08:24 PM
Chris Hamilton   So are you talking about using these things in sto...   Feb 15 2010, 09:33 PM
Marty Yeoman   Any comments on using these as opposed to ...   Mar 31 2011, 10:30 AM
Marty Yeoman   Bump   Apr 1 2011, 05:14 PM
nathansnathan   Those are the same price as the adjusters Jake is...   Apr 4 2011, 04:25 PM
Jake Raby   The difference is we aren't parts whores. We s...   Apr 4 2011, 06:12 PM
mgphoto   I have a few questions, one is about valve rotatio...   Apr 11 2011, 09:02 PM
type11969   Clearance them enough so that the feet don't b...   Apr 11 2011, 09:25 PM


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