Could also be time to replace all of the hoses. You may be finding the
weakest link in the cooling system, replacing it and then finding the next
weakest. It is expensive replacing all but gives great peace of mind. When
were they replaced last? I have an 87 and they were factory until last year.
That adds up to 20 years old in my case, way to old. (for a hose)

 

Marty

 

PS If you have the spring style clamps, buy the clamp compressor with the
long cable on it, it will save you a lot of time and frustration.

 

M

 

-----Original Message-----

From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Dennis Haynes

Sent: Thursday, March 08, 2007 4:52 AM

To: vanagon@GERRY.VANAGON.COM

Subject: Re: 84 Vanagon Bursting Coolant Hoses

 

I would start by replacing the pressure cap. Bad thermostat should be
obvious by the gauge reading. Is the system properly bleed after the hose
replacements? Very likely you have combustion gasses getting into the
coolant system. Either loose or cracked heads. Some diagnostics are needed
to correct this. Also, make sure radiator fan is working if doing city
driving or extended idling.

 

Dennis

 

----- Original Message -----

From: Jack Loranger

Date: Thursday, March 8, 2007 1:43 am

Subject: 84 Vanagon Bursting Coolant Hoses

To: vanagon@GERRY.VANAGON.COM

 

> Hi all,

> I have an 84 water-cooled gas engine Vanagon that has been blowing 

> coolant hoses one after another.

> First it was the lower water pump hose, I replaced it and took a test 

> drive and blew one of the transmission coolant hoses, replaced it, 

> then went for a short drive and one of the large upper hoses blew. I 

> am afraid to keep going this way. Could it be a stuck thermostat or 

> something that I should be looking for?

> Thanks for your help.

> Jack

> Washougal, WA

>