jdcmix Posted July 26, 2010 Share Posted July 26, 2010 It's my understanding that the F707A takes 2 different spark plugs (one type for each side). When I got the truck it had Champion D23 plugs running both sides. Is this acceptable? What are the proper plugs to use on each side? Also, there seems to be a great debate about oil and old engines. Not knowing the history of my engine, i.e. rebuild, or type of oil used previously, etc. , should I use non-detergent oil just to be safe? If a detergent oil HAS been used, will using a non-det oil subsequently cause any harm? ? Where do I find a high quality 15W40 non-det oil?Last question......... the air cleaner is mounted drivers side back by fire wall. It's cannister with an intake port about 3 1/2" diam. Should this port be wide open like this, or is there supposed to be a screen, or tube connected to it? Quote Link to comment Share on other sites More sharing options...
Firemack Posted July 27, 2010 Share Posted July 27, 2010 JDCMIXI don't see anything in the tune up specs identifying 2 types of plugs for the 707A. I would run the same plugs that are specified. If you need the plug spec let me know.We have had many discussions on this site regarding the oil to use. I called Shell and they recommended the Rotella T single weight oil, so I use Shell Rotella 40W. They recommended against using multi weight as the engine was not designed for that type of oil. They also recommended a detergent oil. Your air cleaner should have a tube connecting the carb to the air cleaner, you should also look into modifying the old air cleaner, unless it is an oil bath type, to use a new type air clenaer, I switched mine to a K&N and works well. Firemack Quote Link to comment Share on other sites More sharing options...
jdcmix Posted July 27, 2010 Author Share Posted July 27, 2010 JDCMIXI don't see anything in the tune up specs identifying 2 types of plugs for the 707A. I would run the same plugs that are specified. If you need the plug spec let me know.We have had many discussions on this site regarding the oil to use. I called Shell and they recommended the Rotella T single weight oil, so I use Shell Rotella 40W. They recommended against using multi weight as the engine was not designed for that type of oil. They also recommended a detergent oil. Your air cleaner should have a tube connecting the carb to the air cleaner, you should also look into modifying the old air cleaner, unless it is an oil bath type, to use a new type air clenaer, I switched mine to a K&N and works well. FiremackIf you have the specs for plug type, can you let me know? I was just assuming the D23's that were in the engine were correct, but we all know what happens when we assume...Am I asking for trouble by introducing a detergent oil to an engine that may well have had only non-detergent oil through it's lifetime? The air cleaner IS an oil bath type, and there IS a tube running from the top of the cannister to the carb. The air inlet port at the bottom of the filter / cannister is wide open, and I didn't know if there should be some kind of pre-filter material or other type of attachment over the port to keep large particles or even water from entering the cannister. When I disassembled the housing, there was some debris and some water in the oil. Is that to be expected?Thanks for your help !!! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.