Scotmo Posted August 9, 2003 Posted August 9, 2003 I am looking to change two 6216's from diaphragm fuel pumps to electric. They are stock I/C 16HP Briggs twins. My first question is, Will I need to change carbs or just use the ones I have. My second question is what specs should I look for on the fuel pump volume/psi. etc. I need to make this change before I take them out to the field and put a 30-06 through them and a 12 ga to me. Just kidding at least about the 30-06. I love my tractors...LOL Just ask my wife.OK OK I was kidding about the 12 ga. also I just need to fix the tractors.(bad starter on both right now also) The wife is starting to complain how unreliable they are. I keep telling her they are just like me . As you get older you need a little more maintenance but the quality is still there. I shouldnt complain she puts up with me. God love her! She has a sense of humor at least. lol. Thanks again Scot
BLT Posted August 9, 2003 Posted August 9, 2003 Scott, first of all what condition are your batteries? For the most part other then replacing starter gears, Briggs starters have for the most part been reliable. I'd check for loose connections, corrosion or so on. Try it with another battery. As far as fuel pump goes, it looks like you fuel supply is higher then the carb and if that's the case you should not need a fuel pump as gravity feed is more than enough. That you will have to judge as I am looking at the pic of your tractor. It then boils down to carb maintence and last but not least, for good insurance, an inline fuel shutoff valve. Briggs has a good carb but over the years there have been a lot of service bulletins about his subject and how to correct them. I have have installed fuel shutoffs on my three tractors with an overhead fuel supply and have mentally made a note to turn them off when I park the tractor. A lot of this comes from farming days. When you parked the tractor you manually shut off the fuel valve.
Scotmo Posted August 10, 2003 Author Posted August 10, 2003 Thanks for the info Bob. I think alot of my problem was because I filled the gas tank after it was shut down and the added pressure from a full tank didnt help my situation. As far as the starters go,One I will simply had to replace the gear and it now works fine. The other one acts as if it is weak and simply will not turn the engine. I put new batteries in every year and use penetrox on my connections. I put a 12V starter/charger on it and it still felt weak. So who knows..Lol I will have more time to mess with the tractors Tuesday. I will keep you posted. I am working 12.5 hr nights so I have not had a lot of wrench time lately. Thanks again Scot
JonetteP Posted August 10, 2003 Posted August 10, 2003 Hi Scott, one trick we use to increase the life of the starters and the rpm they generate is to ground the brushes to the block. Use two pieces of wire to ground from the bolts that hold the starter together. This is your contact area for the grounding brushes. The problem is when the steel and aluminum oxidize in this area, and through the starter tube and mount, the electrical connection becomes poor. Putting these extra ground wires on makes the conection better than new. You will notice the difference! Take Care Neal
arnoldir Posted August 11, 2003 Posted August 11, 2003 I have a 6216 and the starter went kaput last season. Opened it up and found the brushes were history, and the lower bushing had seized on the shaft and was spinning in the housing. I ordered an endcap assembly from Jacks (has brushes and bushing) did a quick emery job on the shaft and commutator, cut down the insulator between contacts and now it works like a charm. I can't remember the exact cost of the part but I think it was under $20
gretsch Posted August 12, 2003 Posted August 12, 2003 I'm not sure about the fuel pump conversion pressure, but I have used a low pressure electric fuel pump from Napa and they work well. I had one of those motors on my first Simplicity and I had to rebuild the fuel pump about every year. Simple job (be careful with the small springs) but the diaphrams are prone to becoming hard relatively quickly so it does become frustrating. The engine will not run worth a crap when the fuel pump stops working correctly even though the fuel tank is higher than the carb.
jlasater Posted August 15, 2003 Posted August 15, 2003 Faucet brand pumps are about as reliable as you can get. They use a transistor for switching instead of contacts. I'm not sure the pressure rating.
Recommended Posts