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I put in a rebuilt 455 engine last January. I have about 6000 miles on it and have only used 1/2 quart of oil and it is running great. However after installing it I was only getting about 7 miles per gallon. Upon going and returning from the GMCMI Convention at Elkhart I was getting closer to...

ATF is basically kerosene with additives so you could use that. Emery Stora > > Someone who knows olds engines specifically should chime in, but tI have encountered engines that wont develop oil psi without the distributor in > place so you need a specific tool or an old distibutoe with the...

Yes. That is the one I bought at HF. Don't let yours be exposed to direct sunlight. Emery Stora > > Emery, > > I agree with you kinda-sorta. > > I have one of these in Sydney which I bought back in the middle 1990's: > > https://www.ebay.com/i/122724785171?chn=ps&dispItem=1 > > I paid a...

I thought you were asking the net for an opinion but I see you had already bought it. Let us know in a year or so if it's still working. Emery Stora > > I already have several good meters. I have this one coming for use as a traveling tool. I have a cheeep Banggood LCD scope to travel as...

Save your money up for a good one. I once bought a Harbor Freight one for about that price. I was using it to wire up the toad and the sun shown down on the face for perhaps 10 minutes. The plastic around the dial shriveled up and the numbers would only show the lower half. Buy a used Fluke...

I agree with Jim on this. My Mac dash has a separate transmission gauge which has a probe in my Ragusa pan that tell the oil temp in the pan. By the way, my Ragusa pan has never weeped fluid. Emery Stora > > Most transmission techs will tell you that what is important is the > temperature...

James there is still confusion. I agree that the G and J are what you want for a motorhome. The G and J heads have a 2.000 intake and a 1.625 exhaust, except the marine G had a 2.070 intake. However the 1973 and 1976 Ka had a 2.070 intake but the 74, 75 has the same as the J and G heads...

I fist posted this to the list back in 2004. Many of the GMC motorhomes use J heads. According to information that Dick Paterson published a few years back here is the head information. Those with “soft” seal areas that require hardened exhaust seat inserts: 455 1966 B 455 67-69 C 455 68-69...

Since the in line tells you the temperature after it is cooled I don’t think that tells you much. The out line, however, will tell you if the transmission is overheating. Emery Stora 77 Kingsley Frederick, CO > > Planning to add digi-panel to my GMC and want to know which trans cooling line...

Ron - I lost a bet once with someone from North Carolina when I said the highest mountain east of the Mississippi was in New Hampshire. Actually it is Mount Mitchell in North Carolina at 6684 feet. You can reach it from the Blue Ridge Parkway. Emery Stora 77 Kingsley Frederick, CO > > Well...

Jerry Apparently you don't know the whole story about this. Randy has the Howell TBI system with the EBL added on. With the addition of a variable speed sensor one can go into lean cruise mode which allows leaner fuel mixtures. That can only occur at specific conditions such as cruise speed...

Not much but there are a lot of other benefits of fuel injection. However if you use the ebl system and set it up with a speed sensor added you can drive in a "cruise mode" with a much higher air/ fuel ratio and you will have fuel savings. Emery Stora > > What kind of improved gas mileage...

You can buy the kits or a whole carb from Applied GMC. appliedgmv.com Emery Stora > > Unobtainium

Happy Birthday to Walt Halley. Actually it was yesterday but I'm traveling and didn't have a connection Hope you had a good one. Emery Stora

It was not Caterpillar that I mentioned. I had said that Bob Drewes said the only grease he would use for everything was John Deere grease TY 6341. Emery Stora > > Does anyone know what grease on the market would be closest to > Caterpillar Desert Gold?? > > I think Emery mentioned it one...

It doesn't matter about the tube touching but the bulb at the end of the tube should never touch. There is usually a clip of some kind to keep the bulb away, but close, to the fins. It is supposed to measure the air temperature not the fin temperature. Emery Stora > >> Type 2 a/c on 76...

Someone had once posted that AAA had a fairly low mileage for towing. What is yours? Emery Stora > > Triple AAA RV tows me with no charge. :) (diesel pusher no less) > Sammy > _______________________________________________ > GMCnet mailing list > Unsubscribe or Change List Options: >...

When I drove back from Ohio last fall I broke down near the NE corner of Colorado. 175 miles from home. My insurer, National Interstate told me to arrange a tow with the tow company of my choice and send them the bill. The tow company charged $10 per mile, $1750.00. I mailed the bill to National...

I suggest that you purchase a Bosch relay. Many of the cheaper “black boxes” don’t hold up. Emery Stora 77 Kingsley Frederick, CO > > Put in another new fuel pump. Didn't even get out of the drive when the new relay died. This relay is a small black one from Auto Zone. Any suggestions? Bob...

Well I hope it was a joke but you never know. I recall another GMCer once posting that he bought his batteries at Walmart and just before the 3 year free replacement was up he would bring them back and say they were bad so that he got a fresh one for free. He said that he had been doing that for...