spider retainer? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 10-17-2003, 10:57 PM
New Member
 
Join Date: Oct 2003
Location: Phoenix, AZ
Age: 31
Posts: 14
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
spider retainer?

Hi there. I have a 350 (unknown year), and I would like to put a different camshaft in. I found the cam I want (MTC-1), it's a NonRoller Hydraulic.

someone told me to find out if my engine needs a roller cam, there will be a "spider retainer" visible when the intake is taken off.

What does this spider retainer look like? Or, is there another way to tell if I need a roller/nonroller cam? (easiest/quickest way, if possible).

Thanks so much!

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 10-17-2003, 11:06 PM
Jmark's Avatar
Registered User
 
Last photo:
Join Date: Sep 2003
Location: phoenix
Age: 61
Posts: 4,808
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
Ahh, another poster in PHx.. Welcome!

Never heard of a "spyder retainer" before. What I'm assuming he's talking about is a thrust button on the front of the camshaft. If it has one, it will be visible when the timing cover is off. Never seen one inside the valley area.
They are used on roller cams only. They keep the cam from moving forward and backward in the block. The button is mounted on the end of the cam and is held in by a metal plate that has tangs that are bent onto the 3 cam gear bolts to keep them tight.

Non roller cams have the lobes ground on a very slight angle to aid in lifter rotation and it also keeps the cam in the block.

Roller cam lobes are ground ( for a lack of a better word) flat, so cam walk can be a problem.


Last edited by Jmark; 10-17-2003 at 11:17 PM.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 10-17-2003, 11:24 PM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,655
Wiki Edits: 0

Thanks: 15
Thanked 59 Times in 56 Posts
the spider retainer is used in factory roller cam blocks, it`s job is to hold the roller lifter retainer in place so they don`t rotate in the bores. factory roller blocks were used from 1987 on and mostly in passenger cars. the spider retainer uses 3 bosses in the intake valley to bolt on to. these blocks have there own camshaft retainer that bolts on to the block behind the timing chain so the cam can`t walk.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 10-17-2003, 11:33 PM
Jmark's Avatar
Registered User
 
Last photo:
Join Date: Sep 2003
Location: phoenix
Age: 61
Posts: 4,808
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
Well, thanks for clearing that up! LOL I"ve never had a factory roller sb apart yet. Building older rollers now.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 10-17-2003, 11:39 PM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Re: spider retainer?

Quote:
Originally posted by Error404
I have a 350 (unknown year),

Well that narrows it down to about thirty years, post some numbers from the block and we can probably tell you what you need without tearing into it.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 10-18-2003, 12:30 AM
troy-curt's Avatar
Shop Owner And Troll Hunter
 

Last journal entry: Detailing Eng. Compartment
Last photo:
Join Date: Apr 2003
Location: Prairie Grove Ar.
Age: 75
Posts: 2,646
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I use the cam button on all performance engines.

Troy
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 10-18-2003, 07:33 AM
NorthStar's Avatar
Member
 
Last photo:
Join Date: Feb 2003
Location: Minnesota
Age: 50
Posts: 847
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts



spiders have 8 legs and so does a spider retainer
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 10-19-2003, 12:25 AM
New Member
 
Join Date: Oct 2003
Location: Phoenix, AZ
Age: 31
Posts: 14
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
hey, thanks guys! I'll take off my timeing cover and have a look!

The cam I'm looking to purchase comes with lifters in the kit, so would it even matter if my engine currently has a rollercam/lifters? (the new cam isn't roller). I'm not looking to get ball splitting power, the cam in question (Melling MTC-1) is a low end cam (probably for 350 truck engines) and is supposed to be very good on gas milage.

I'm not worried about a lack of high end, I don't race much, I'm just looking for a nice sounding idle (a little bit of chop) with better gas milage. I'm told that this cam will give me what I'm looking for.

Sorry, I'm a bit new to cams

Where will the block numbers be? is it the only thing writen on the block?
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 10-19-2003, 01:52 AM
Member
 
Last photo:
Join Date: May 2003
Location: Shreveport LA
Age: 64
Posts: 5,103
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
http://www.gmgoodwrench.com/gmgoodwr...347&section=ep

Look at the roller tappet guide retainer. That's the spider. It lives under the intake manifold.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 10-19-2003, 03:22 PM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally posted by Error404
Where will the block numbers be? is it the only thing writen on the block?
You can look on the back of the block behind the driver side head, on the block will be a number like 3970010 etc. Or if you can see it, there's the numbers on the front of the block just in front of the passenger side head. The numbers on the back of the block will be easiest to decipher for me anyway.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 04:48 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.