DML,
Chrysler has done a lot of "funny" things in the past, not all good, but
all required for various engineering compromise. I would never blindly
assume that any stock setup is optomized for my requirements (I do try to
buy vehicles that are close to what I need though) The R/T has a "stock"
ram 360 in it. It does not seem to be a tweaked 360. Its not really a
"special package" motor in my mind (Id love to be wrong, but then it should
have more "balls" than it does stock) Rams are bigger, heavier, and not used
a sport vehicles too much. I can improve it for my purposes (no 5th wheel
plans in my future). If I were pinging on regular gas (it doesnt) then I
would not hesitate to perform a $ 10.00 experiment with a 180 deg
thermostat. It ought to pay itself back (if it cures the problem) in 1.5
tanks of regular gas! If pinging is still a problem, then there are other
things to modify. the "art" of engineering is in part the art of
compromise. We cant please every one under every condition, nor can the
company (CC in this case) provide unlimited options for those with "special
needs" (big trailers, heavy foot, hot Texas days etc.....) BUT dont let
your motor ping. Ma Mopar wouldnt want that. no no no...
BKBridges
At 09:30 PM 8/5/98 -0700, you wrote:
>I really appreciate your attempt to help, but as you recall from many
>previous posts, pinging is a problem cured by higher octane fuel. I run 89
>octane and the only time my Dak pinged is towing my trailer in hot weather
>up hill. I added a bit of 'high test' and that cured the problem. I'm sure
>if a 180 thermostat was the cure, Chrysler would put them in the truck from
>the factory. My 89 Sundance pings unless it gets 92 octane and it was
>just tuned (plugs, rotor, cap, wires, scoped etc.). I suspect as well as
>load and temperature, the changing formulation of gasoline from summer to
>winter also affects it. My 78 1/2 ton, my 78 3/4 ton and my 77 Plymouth
>Volare all pinged on regular gas. They all ran fine on higher octane fuel.
>
>There were all SUPPOSED to run on regular gas.
>
>------------------------------
>
>>From: Boog318@aol.com
>>Subject: Re: DML: Pinging from Chevron's Canada web page
>
><in older cars and high performance vehicles....
>
>>If you have a stock computer, you should not need to run high octane these
>>trucks are designed as trucks for hauling and towing from the factory. The
>>problem could either be with the engine running hot, or with the computer
>>advancing the timing too much. The 180 thermostat will help either way,
>>unless it is severe detonation, then its in the computer.
>>Boog
>
>----------------------------
>------------------------------
>
>>Date: Wed, 5 Aug 1998 22:39:08 EDT
>>From: Boog318@aol.com
>>Subject: Re: DML: Some Quirks
>
>>Rob,
>>These E-brake cables should be lubricated with lithium grease. If the truck
>>is fairly new, then maybe it was not done properly at the factory. Any good
>>repair manual should tell you how to do it.
>>Boog
>
>------------------------------
>
>Thanks for your suggestion, but as I indicated in my post, my dealer
>serviced the E brake
>and beveled the brake shoes under warranty. He also checked that the brake
>was operating as it should in his shop. The cables are free. I'm sure the
>mechanic has read the repair manual :)
>
>Sometimes someone on this list (remember the intermediate shaft and mirror
>wind whistle) has had the same problem and knows the exact cure. This is
>helpful, particularly if my dealer hasn't had the problem before.
>
>
>Rob Agnew
>ragnew@islandnet.com
>
>Victoria, B.C.
>Canada
>
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