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Re: [GMCnet] GMC Coach - New Braunfels, TX [message #77929 is a reply to message #77828] Wed, 24 March 2010 21:39 Go to previous messageGo to previous message
Ken Burton is currently offline  Ken Burton   United States
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma:
Senior Member
k2gkk wrote on Wed, 24 March 2010 09:42


Well, I pulled the trigger last night, so I guess I have bought a coach.
Now to get financing, insurance, etc. and retrieve it from over 450 miles
away from home.

I see from info that it requires 91 Octane fuel. Is this current 91 stuff
or the OLD 91 stuff? If I remember correctly, current 87 or 88 is about
equivalent to the old 91 stuff.

Mac Macdonald
Oklahoma City



87 is fine. If your hearing is OK, then listen for it to ping while you are driving. If you hear any pinging on heavy load, retard he timing 2 degrees. I do not know anyone personally that uses anything higher than 87. There have seen a few posts here in the past that say they use 89 or 91 but I do not remember who they were.

On the subject of pinging. Listen closely when you first drive the coach. Especially if it has been parked for a while. There have been a few cases of the distributor advance weights rusting and sticking partially or fully advanced causing pinging. Mine did it on time on a trip to my first rally. I stopped and temporarily fixed the problem until I got home. Then I bought a Dick Paterson rebuilt distributor to permanently fix it.

Ken B.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
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