Justin,
The "word" at Marion was to go no higher than 10lb and then only if the
9lb was not available. Too much pressure for our radiators. I think
that was from either Fred Hudspeth or Duane Simmons.
Patrick
>
> I have been running the 9 lb radiator cap per the owners manual. Recently
> when I had some radiator work done, the mechanic wanted to know why I was
> running the 9 lb and said it should have the higher 12-14. I guess I was
> brain dead at the moment and didn't recall the info in the owners manual. At
> the recent Classics rally someone expressed an opinion that the higher
> pressure radiator caps would cause trouble on the GMC. For the time being I
> have gone back to the 9 lb. My question is why does the GMC need the lower
> pressure cap, or does it. If so, how is it different from todays cooling
> systems?
> Justin
- --
Patrick Flowers
Mailto
atrick
The GMC Motorhome Page
http://www.gmcmotorhome.com
The "word" at Marion was to go no higher than 10lb and then only if the
9lb was not available. Too much pressure for our radiators. I think
that was from either Fred Hudspeth or Duane Simmons.
Patrick
>
> I have been running the 9 lb radiator cap per the owners manual. Recently
> when I had some radiator work done, the mechanic wanted to know why I was
> running the 9 lb and said it should have the higher 12-14. I guess I was
> brain dead at the moment and didn't recall the info in the owners manual. At
> the recent Classics rally someone expressed an opinion that the higher
> pressure radiator caps would cause trouble on the GMC. For the time being I
> have gone back to the 9 lb. My question is why does the GMC need the lower
> pressure cap, or does it. If so, how is it different from todays cooling
> systems?
> Justin
- --
Patrick Flowers
Mailto
atrickThe GMC Motorhome Page
http://www.gmcmotorhome.com
