Help!!...Water in oil/oil pan and no coolant in radiator - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 09-15-2004, 09:28 PM   #21
Senior Member
Posts like a Turbo
 
Join Date: Apr 2004
Location: Sheridan Wyoming
Posts: 210
Thanks: 0
Thanked 0 Times in 0 Posts
57chevythunder is on a distinguished road
Default

Hmmm,,, okay here goes my 2 cents: The “spring loaded” cap is referring to a very small, very light pressure spring that just barely keeps the “coolant recovery check valve” closed. (that is, the little circular valve on the bottom, in the center of the pressure-sealing gasket.) -not the large pressure-regulating spring.

That little check valve (fluid equivalent of a diode in electricity) is sealed tight under normal operating pressures. When everything cools down, -especially overnight, the negative pressure in the system then draws coolant back out of the bottle, into the radiator by slightly opening that little check valve.

I’ve used both types on my old Astro Van, and I can say for sure that the spring-loaded cap ensures that the cooling system comes up to operating pressure much faster. Upon inspecting both types for my ’99 Bonneville, I decided that the spring loaded was probably better.

So, why did they go to that design?? -Don’t really know, but I’m wondering if maybe they figure it offers a little more insurance of keeping air out of the system ?? Anybody else have any ideas ??

Oh yeah, and about the discrepancy in the torque values: I used the higher settings on mine, and now wish I hadn't. From my experience, the higher setting distorts the plastic enough to cause the inner edges of the tuned air runner tubes to distort slightly, and not seal properly against the inner gasket. -can't see that it will cause any harm, but it does cause a loss of seal on the tuned runners inside. Everthing is still vacuum sealed by the outer perimeter gasket.
A couple of days after I had mine all back together, I noticed a slip of paper that had come with the gaskets, and said to use the lower settings. Oh well,, all is still fine.
57chevythunder is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Water, Water. Water !!!! da_grey_goose_95 Detailing & Appearance 6 02-19-2010 12:36 PM
Coolant leak from oil pan? wiktor 1992-1999 2 04-21-2007 07:24 PM
Series III oil pan onto S2, fixes oil leak problems? Bonneville92V688 General GM Chat 2 01-31-2007 03:25 PM
Low oil pressure sensor in oil pan... Bob Dillon 1992-1999 9 05-11-2006 09:23 AM
[Water pump] Will the oil pan support the engine for jacking JohnnyB 1992-1999 13 12-03-2004 02:30 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:09 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.