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> valve lifters, big dissapointment
Korijo
post Jan 8 2004, 07:32 PM
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I'm in for a "Direct" replacement group buy thing... *IF*...

the machine-in lifters won't benefit my engine-in-the-works (see specifics below). My case IS apart. And have my cam/lifters all ready, but they are the perfect canidates for ... (booming voice) ... "THE LIFTER CAM ISSUE". (IMG:style_emoticons/default/biggrin.gif)

Here are my projected spec's:

94mm Flat tops (already cut for valves)
78mm CW Demello Crank
H-Beam Rods (lightened-clearanced whatever)
86 Web Cam/solid lifters
40mm IDF's
HD Springs
Stock Valves
Swivel Head Adjusters

Not to mention my heads, remember ?? Everyone is/was scared of them (IMG:style_emoticons/default/ohmy.gif) The dreaded seat staking...

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rhodyguy
post Jan 8 2004, 09:00 PM
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Chimp Sanctuary NW. Check it out.
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is buying a set up from cb performance an option. no web cams. what are the chances that THEIR lifters will be compatible with THEIR cams.

kevin
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Jake Raby
post Jan 9 2004, 08:54 AM
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That combo needs some serious refiguring in my opinion...

where are you getting a 24pinned H Beam rod? bushing the piston? Be ready for serious clearance issues with those pistons if you use a stock length rod.

There are many better cams for the combo as well, the 86 does not like CR at all, and has lazy ramps. its my stock replacement in 100% stock engines otherwise.
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Korijo
post Jan 10 2004, 01:05 AM
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I thought I was lacking in the cam department (IMG:style_emoticons/default/unsure.gif) Guess I was thinking the ceramic lifters might take up the slack...

The rods are bushed to 22... 5.5" (IIRC). Pistons have ALREADY been clearanced for up to 78 stroke. Oh- I have Berg cylinder shims, too.

My initial question was... "What is the benefit of a larger lifter ?"
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Mark Henry
post Jan 10 2004, 08:13 AM
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QUOTE(Korijo @ Jan 9 2004, 11:05 PM)
I thought I was lacking in the cam department (IMG:style_emoticons/default/unsure.gif) Guess I was thinking the ceramic lifters might take up the slack...

The rods are bushed to 22... 5.5" (IIRC). Pistons have ALREADY been clearanced for up to 78 stroke. Oh- I have Berg cylinder shims, too.

My initial question was... "What is the benefit of a larger lifter ?"

Dave, Jake is talking about your pistons. If they are made for a stock T4 rod then they have a 24mm pin. Your chevy (journal) rods have a 22mm piston pin. you will need different pistons.

Lifters don't add anything lift wise, the cam and rockers do that. The machine-in lifters are a hair bigger around, machining the bore corrects 30yrs of wear in the lifter bores. You can now get drop-in ceramic lifters.

You might want a tad bigger cam.
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Korijo
post Jan 10 2004, 03:49 PM
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QUOTE
Dave, Jake is talking about your pistons.


I know. My pistons are Type 1, with 22mm pins. Guess I should have said that (IMG:style_emoticons/default/huh.gif) .

So the bigger bore, machine-in ceramic lifters WON'T benefit my engine MORE than the drop-ins ? My case has already been align bored, so maybe the lifter bores need some attention. Now's the time to do it...

QUOTE
You might want a tad bigger cam.


Yea, I figured (IMG:style_emoticons/default/ohmy.gif) . What cam works best with the ceramic lifters ?
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theo
post Jul 23 2013, 01:52 PM
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Sorry to dig up a decade old thread, but does anyone know if there was any resolution to this issue? I can’t really seem to find any recent discussion of why these lifters were failing. Are the WEB lifters that are currently on the market reliable?
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monkeyboy
post Jul 23 2013, 02:05 PM
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General concensus these days was that a lot of it had to do with the oils changing due to new smog regulations.

Nowadays we run "High Zinc" oil. Make sure it is specified to have high zinc and phosphorus. For use with flat tappet cams is what you are looking for.

Joe Gibbs makes an oil specifically for use in air cooled motors.
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Elliot Cannon
post Jul 23 2013, 03:45 PM
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I found some ceramic lifters. ($500) Works great and apparently unobtainable now.
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7TPorsh
post Jul 23 2013, 04:07 PM
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Saw that Hemmings Motor News is making special oil...

http://blog.hemmings.com/index.php/2012/09...r-classic-cars/
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worn
post Jul 23 2013, 09:45 PM
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QUOTE(redshift @ Aug 29 2003, 11:21 PM) *


Built by the best, for the best money work can buy.... yeah, I feel good, if not inconfident.

I have webcams and what appear to be twopart lifters. I feel ok, if incontinent. (IMG:style_emoticons/default/huh.gif)
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sean_v8_914
post Jul 24 2013, 09:23 AM
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lots of high zddp oils coming out because of this. Lucas, brad penn, valvoline. look on summit racing.com
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Jake Raby
post Jul 24 2013, 07:03 PM
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QUOTE
Joe Gibbs makes an oil specifically for use in air cooled motors.


Yep...

This...
(IMG:http://www.914world.com/bbs2/uploads_offsite/sphotos-a.xx.fbcdn.net-1095-1374714212.1.jpg)

Led to this after several generations of development in my engines.

(IMG:http://www.914world.com/bbs2/uploads_offsite/fbcdn-sphotos-f-a.akamaihd.net-1095-1374714214.2.jpg)

And its not just Zinc. Attend one of the lubrication Seminars hosted by Lake Speed of Joe Gibbs Driven Racing Oils to learn how we developed these oils and how the critical balance of anti-wear and detergency packages is is so critical. Lake is a Certified Lubrication Specialist and Tribologist. His seminars are NOT infomercials, in fact he hardly talks about Gibbs products unless the attendees ask him.

Joe Gibbs products are formulated by Lubrizol; one of only 4 companies in the world that makes additive packages for oils. Interestingly enough, ZDDP was invented by Lubrizol. No one knows it better and every single piece of military equipment in the US Armed Forces is filled with Lubrizol oils, in fact ZDDP was invented to kill engine wear in Sherman Tank engines in WWII.
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worn
post Jul 24 2013, 08:11 PM
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So I will be ok as long as I use joe Gibbs oil? That is good to know because I have new set of lifters and I was getting concerned. I will check out Summit.
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Jake Raby
post Jul 24 2013, 08:55 PM
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QUOTE(worn @ Jul 24 2013, 06:11 PM) *

So I will be ok as long as I use joe Gibbs oil? That is good to know because I have new set of lifters and I was getting concerned. I will check out Summit.


Oil isn't magical. If you have mismatched components or low quality components with improper profiles, improper spring pressure or etc you will have problems no matter what oil is used.

We have not had a single camshaft issue since 2005, before that we had gone 5 years with zero issues. that single issue that we had was in my own engine!
Thats turnkeys and component kit sales alike and the numbers are in the thousands for sales.

A lot of it is luck. Good oil at least gives you a fighting chance. Bad oil gives you a death wish.
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