#1  
Old 07-01-2014, 08:25 PM
BILTIT's Avatar
BILTIT BILTIT is offline
Ultimate Warrior
 
Join Date: Aug 2005
Location: sask, canada
Posts: 3,777
Default

So i pulled the engine and pan since i could not get a dipstick in last year (wrong windage tray i think). i thought i would take a look at the bearings and this is how they look, thoughts?

Mains #2&3

That is one summer of wear, nothing that grabs they finger nail. I think the main caps have "walked" in the past, they come right out when the bolts are removed and some small markings on the block where they sit. I think this is due to the nitrous that was used on this engine by the previous owner.

What is the easiest fix for the caps? New block/caps? align hone?

I have other blocks on hand but all would need machining.

What is the proper pieces i need to fix my dipstick issue? I have a 70 block, baffled pan, windage tray without hole in it for tube right now and also have the windage tray with a hole.

I assume i need the tray with hole and a lower tube correct?



__________________
Derek B.
Current best: 11.97@110 1.65-60' !!!

'74 ventura, (Fired july 14/06) '74 462 4-bolt (9.5-1), SCAT, Ross, T-II w/850DP (shaker455), TH350, Conti 10'' 3800, Supercomps, Magnaflow, 3'' Pypes, 3.73's, 28x13.5-15 ET streets.

1970 Beismeyer 17' flatbottom vdrive, 11.8:1 455P, ported heads, dual Qjet tunnel ram.
  #2  
Old 07-03-2014, 09:46 AM
Tom Vaught's Avatar
Tom Vaught Tom Vaught is offline
Boost Engineer
 
Join Date: Dec 2001
Location: The United States of America
Posts: 31,302
Default

Quote:
Originally Posted by BILTIT View Post
So i pulled the engine and pan since i could not get a dipstick in last year (wrong windage tray i think). i thought i would take a look at the bearings and this is how they look, thoughts?

Mains #2&3

That is one summer of wear, nothing that grabs they finger nail. I think the main caps have "walked" in the past, they come right out when the bolts are removed and some small markings on the block where they sit. I think this is due to the nitrous that was used on this engine by the previous owner.

What is the easiest fix for the caps? New block/caps? align hone?

I have other blocks on hand but all would need machining.

What is the proper pieces i need to fix my dipstick issue? I have a 70 block, baffled pan, windage tray without hole in it for tube right now and also have the windage tray with a hole.
Luhn Performance did some research on main cap fretting (walking) in the past and may have a solution for you on that deal. They came up with some new main cap hardware that is supposed to reduce that "walking" quiet a bit, even in a 2 bolt main block.

Might be worth a phone call.

Tom V.

__________________
"Engineers do stuff for reasons" Tom Vaught

Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 05:18 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017