C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

>>>>>> How do I find out if......

Thread Tools
 
Search this Thread
 
Old Sep 20, 2002 | 12:34 PM
  #1  
Brettmc's Avatar
Brettmc
Thread Starter
Safety Car
10 Year Member
 
Joined: Jul 2002
Posts: 3,770
Likes: 3
From: St Louis MO
Default >>>>>> How do I find out if......

I have a hydraulic or solid cam? I just took delivery of my 74 last week. I asked owner to get together all docs on car, especially cam card since he said it had a Crane solid lift in it. I asked him again when I picked up the car and he said "it's in that box". Well, guess what, it wasn't in the box so I'm thinkin a) he doesn't have it or b) he doesn't know what I'm talking bout. I really don't want to tear off the intake just to find this info. There's got to be an easier way.
Reply
Old Sep 20, 2002 | 01:53 PM
  #2  
73 LS-4's Avatar
73 LS-4
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jun 2001
Posts: 2,340
Likes: 2
From: Moro IL
Default Re: >>>>>> How do I find out if...... (Brettmc)

It may be possible to find out by simply pulling a valve cover and take a look at the lifters. If you can't see enough from there you may need to pull the pushrod and you can possibly pull one of the lifters out with a magnet (if you have a strong one and there isn't much ridge in the lifter bore), then you can tell. Should be able to tell from the valvetrain setup however, if there is a littel freeplay on the closed valves when cold it's probably mechanical, but I'd pull a lifter to be sure.

:cheers:
Pat Kunz
Reply
Old Sep 20, 2002 | 02:01 PM
  #3  
Fevre's Avatar
Fevre
Race Director
15 Year Member
 
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Default Re: >>>>>> How do I find out if...... (Brettmc)

After blowing a piston up do to adjusting my unknown cam like a hyd only to find it it was solid, I would take the time and pull your timing chain cover so you can get the part number off the front of the cam. This is the only way you will know everything about your cam for future use in planning mods and valve adjustments. PITA but might save lots of heartache later.
Reply
Old Sep 20, 2002 | 04:58 PM
  #4  
LAvetteman's Avatar
LAvetteman
Safety Car
20 Year Member
 
Joined: Jan 2001
Posts: 4,660
Likes: 3
From: South Central Louisiana
St. Jude Contributor
Default Re: >>>>>> How do I find out if...... (Fevre)

Isn't it true if you get around .044 gap on an open valve it is a solid, but if you get less than .0015 gap it is hyraulic?
Reply
Old Sep 20, 2002 | 05:02 PM
  #5  
Fevre's Avatar
Fevre
Race Director
15 Year Member
 
Joined: Mar 2001
Posts: 11,322
Likes: 1
From: Living in the Hartland
Default Re: >>>>>> How do I find out if...... (71,454,4spd)

Isn't it true if you get around .044 gap on an open valve it is a solid, but if you get less than .0015 gap it is hyraulic?
If you are asking me specifically, I do not know. Unless there is sure fire way to tell without pulling the intake and inspecting the lifters, I would not risk assuming anything. Made that mistake once already. :(
Reply
Old Sep 21, 2002 | 08:57 PM
  #6  
Brettmc's Avatar
Brettmc
Thread Starter
Safety Car
10 Year Member
 
Joined: Jul 2002
Posts: 3,770
Likes: 3
From: St Louis MO
Default Re: >>>>>> How do I find out if...... (Fevre)

Really don't want to disturb the pan/timing cover seal. I figure if I can find out if it's a solid I will adjust the lash at about .022". How's that sound? Any other ideas?
Reply

Get notified of new replies

To >>>>>> How do I find out if......





All times are GMT -4. The time now is 10:28 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE