Coolant Leak - Pirate4x4.Com : 4x4 and Off-Road Forum

Zane Znamenacek · 09-27-2001, 07:28 AM

I finally bought my second IH last night <IMG SRC="smilies/biggrin.gif" border="0">, a 71 800b with a 304 and a 4-speed (T-18?). The wierd thing is that it leaks coolant from the bottom of the bellhousing at a pretty good rate. I looked everything over and couldn't see any leaking anywhere else on the back or top of the engine. Any ideas what the problem could be? Is there a freeze plug back there?

Old Scout · 09-27-2001, 08:17 AM

Yup there are freeze pulgs behing the BH. Good news there cheap, but a ton of work to remove the trans/tc to repair.

RustoleumWhite · 09-27-2001, 08:48 AM

Personaly, the best advice I could give is to remove the engine and remove and replace ALL the freeze plug. When one goes, the rest *usually* arn't far behind.

Don't forget about the 5 or so under the intake manifold <IMG SRC="smilies/biggrin.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0">

tsm1mt · 09-27-2001, 09:23 AM

Quote:

Originally posted by Old Scout:
<STRONG>Yup there are freeze pulgs behing the BH. Good news there cheap, but a ton of work to remove the trans/tc to repair.</STRONG>

Two, IIRC.

There's a missing one visible in this pic - just above the "closest" arm of the stand there's a hole.

Can't get the buggers into the block while it's on the stand - I had to drive 'em in after it was back on the hoist and ready to get dropped into place.

Zane Znamenacek · 09-27-2001, 12:08 PM

OK, thanks for the info. guys. I think I'll fill it up with water and do one last check to make double sure the leak is only inside the BH, then I'll plan on pulling the engine.

One thing the guy I bought this Scout from said is that *most* of the freeze plugs were replaced in the near past. I highly doubt the inaccessable ones behind the BH were included in the project, so this goes along with what RustoleumWhite says about all the plugs failing at once.

09-27-2001, 07:28 AM	#1 (permalink)
Zane Znamenacek Registered User Join Date: May 2001 Member # 4758 Location: Fruita, CO Posts: 101	Coolant Leak I finally bought my second IH last night <IMG SRC="smilies/biggrin.gif" border="0">, a 71 800b with a 304 and a 4-speed (T-18?). The wierd thing is that it leaks coolant from the bottom of the bellhousing at a pretty good rate. I looked everything over and couldn't see any leaking anywhere else on the back or top of the engine. Any ideas what the problem could be? Is there a freeze plug back there?

09-27-2001, 08:17 AM	#2 (permalink)
Old Scout IH/Rover Moderator Join Date: Feb 2000 Member # 17 Location: Aptos,Ca Posts: 13,398	Yup there are freeze pulgs behing the BH. Good news there cheap, but a ton of work to remove the trans/tc to repair. __________________ I like beer. On occasion, I will even drink beer to celebrate a major event such as the fall of communism or the fact that the refrigerator is still working." BUY MY BOAT http://www.pirate4x4.com/forum/misc-...e-history.html

09-27-2001, 08:48 AM	#3 (permalink)
RustoleumWhite Zeus of the Sluice Join Date: May 2001 Member # 4506 Location: WA Posts: 4,662	Personaly, the best advice I could give is to remove the engine and remove and replace ALL the freeze plug. When one goes, the rest usually arn't far behind. Don't forget about the 5 or so under the intake manifold <IMG SRC="smilies/biggrin.gif" border="0"> <IMG SRC="smilies/biggrin.gif" border="0"> __________________ I wheel a mean jackstand

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09-27-2001, 12:08 PM	#5 (permalink)
Zane Znamenacek Registered User Join Date: May 2001 Member # 4758 Location: Fruita, CO Posts: 101	OK, thanks for the info. guys. I think I'll fill it up with water and do one last check to make double sure the leak is only inside the BH, then I'll plan on pulling the engine. One thing the guy I bought this Scout from said is that most of the freeze plugs were replaced in the near past. I highly doubt the inaccessable ones behind the BH were included in the project, so this goes along with what RustoleumWhite says about all the plugs failing at once.