fxfymn Posted January 4, 2016 Share Posted January 4, 2016 There are places that will do the speedo, but I would remove and clean/grease the cable first. I use a GPS to accurately track my speed in lieu of having the analog speedo rebuilt. Quote Money, sex, and fire; everybody thinks everyone else is getting more than they are! Link to comment Share on other sites More sharing options...
GA_Dave Posted January 11, 2016 Share Posted January 11, 2016 (edited) Is this your truck? Edited January 11, 2016 by GA_Dave Quote Link to comment Share on other sites More sharing options...
ff6cav Posted January 13, 2016 Author Share Posted January 13, 2016 Is this your truck?It is! 1 Quote Link to comment Share on other sites More sharing options...
ff6cav Posted February 23, 2016 Author Share Posted February 23, 2016 With warmer weather hopefully arriving before too long, and anticipating being able to actively work on the rig again, I've decided to convert to an electric fuel pump. Yesterday while checking on the rig, I discovered that the mechanical pump is now leaking both gas and oil, and after doing some research, a conversion seems to be a good way to go. After checking the forums here, I ordered a Carter P4070 on Amazon for $62 (free shipping), and will post pictures once I get it installed; I also plan to replace the fuel lines with ethanol-resistant hose. In the meantime, can any of you offer any helpful hints or things I should look out for when making the switch? Quote Link to comment Share on other sites More sharing options...
1958 F.W.D. Posted February 23, 2016 Share Posted February 23, 2016 In the meantime, can any of you offer any helpful hints or things I should look out for when making the switch?What did you use to determine this particular brand/model of pump? I ask because if you use a high pressure, low-volume pump you will starve that 707. I know several folks who converted 817G Waukeshas to electric and used high pressure pumps that starved the engine.I also had the same issue with the mechanical pump on my 140GZ(F554G) Waukesha- ethanol ate away the diaphragm. It is a rare Delco-Remy pump made exclusively for Waukesha....So when I called around to find a diaphragm, I started to sweat when folks were laughing at me. Converted to an electric Airtex (low pressure, high volume) pump. Try not to run ethanol-formulated fuel in that thing at all. If you HAVE to due to lack of eth-free fuels, make absolutely certain that you treat it with ethanol-formula STA-BIL (the green stuff) and never, ever keep it in your tank longer than 2-3 months. Only fill up enough that you will burn off in that time frame. www.pure-gas.orgList of fuel stations with ethanol free fuel. DO NOT RUN HIGH OCTANE OR RACING FUELS. You risk burning valve seats. Quote TWO STROKES ARE FOR GARDEN TOOLS Link to comment Share on other sites More sharing options...
j hancock Posted February 24, 2016 Share Posted February 24, 2016 That pump has decent specs with 4-6 psi and 72 gph free flow. Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
fxfymn Posted February 24, 2016 Share Posted February 24, 2016 Make sure the switch that controls the new pump is tied to the ignition circuit so you cannot leave it on with the engine shut down. This should prevent you from filling the crankcase with gasoline if the carb float sticks. You may want to put a fuel pressure regulator on even though the pump you are using appears to have a low enough pressure.By "replace fuel lines" I assume you mean only the existing rubber lines?? I would not use rubber all the way from the tank to the engine as the pump will happily keep fuel flowing through a broken line until it finds an ignition source. If the existing lines are rusty replace them with a steel line (steel brake line works fine).You can place the pump almost anywhere in the lines, but if you put it near the tank it will act as a "lift" pump to deliver fuel more quickly after the truck has sat idle for awhile. (I assume the tank is in the rear near the back step) The downside is if a line leaks it will supply fuel to the leak; if it is mounted near the engine it will lose prime from a leak between it and the tank. Quote Money, sex, and fire; everybody thinks everyone else is getting more than they are! Link to comment Share on other sites More sharing options...
1958 F.W.D. Posted February 24, 2016 Share Posted February 24, 2016 Carl, good point.I forget which year it was....At Macungie.....the crankcase of one of Mike Yarnall's rigs (with an electric pump) got filled with gasoline when someone errantly turned on the wrong switch.I've been disconnecting my battery terminals at Macungie or any other long-term show for this very reason. Quote TWO STROKES ARE FOR GARDEN TOOLS Link to comment Share on other sites More sharing options...
ff6cav Posted February 25, 2016 Author Share Posted February 25, 2016 I'm on my phone and can't "quote" posts right for some reason, but here goes- I had found a thread on here discussing this exact thing where that pump was listed as a viable option, but can't find it at the moment to link to it. As far as the fuel lines, that's correct, my plan is to replace the existing rubber hoses, more as a precaution than anything else, and I'm planning on wiring it with a relay so it is only on when the ignition is on. The pump arrived yesterday, so I'm hoping to get it installed sometime next week and will post the results when I do 1 Quote Link to comment Share on other sites More sharing options...
fxfymn Posted February 25, 2016 Share Posted February 25, 2016 You shouldn't need a relay as the draw is not that high. Mine picks up voltage from the ignition switch through a control switch and then directly to the pump. Quote Money, sex, and fire; everybody thinks everyone else is getting more than they are! Link to comment Share on other sites More sharing options...
ff6cav Posted February 25, 2016 Author Share Posted February 25, 2016 Here's the thread I referenced earlier:http://www.bigmacktrucks.com/index.php?/topic/38114-electric-fuel-pump/ Quote Link to comment Share on other sites More sharing options...
General Ike Posted February 25, 2016 Share Posted February 25, 2016 MB400 - Where do you live that you're cruising through Gettysburg on ice cream runs? I went to college there in the late '90's, was a member of GFD and own their 1957 B85F "The General Ike".-Ed- Quote Ed Smith1957 B85F 1242 "The General Ike" Link to comment Share on other sites More sharing options...
ff6cav Posted February 27, 2016 Author Share Posted February 27, 2016 MB400 - Where do you live that you're cruising through Gettysburg on ice cream runs? I went to college there in the late '90's, was a member of GFD and own their 1957 B85F "The General Ike".-Ed-Biglerville, about 7 miles north of Gburg Quote Link to comment Share on other sites More sharing options...
General Ike Posted February 27, 2016 Share Posted February 27, 2016 Know it well. Speaking of ice cream runs, last time I drove through, it looked like the Distelfink was closed. Bummer. They had great milkshakes. Sent from my iPhone using Tapatalk Quote Ed Smith1957 B85F 1242 "The General Ike" Link to comment Share on other sites More sharing options...
ff6cav Posted February 28, 2016 Author Share Posted February 28, 2016 Know it well. Speaking of ice cream runs, last time I drove through, it looked like the Distelfink was closed. Bummer. They had great milkshakes.Sent from my iPhone using TapatalkYeah, it's been closed for a little while now, and nobody seems to want to buy it and re-open or build anything else there. Quote Link to comment Share on other sites More sharing options...
ff6cav Posted March 15, 2016 Author Share Posted March 15, 2016 So today the weather and my work schedule finally somewhat aligned to let me poke around a little bit. The new fuel pump is bolted on, using a bracket that was already there. This was the best I could figure out this morning after working overnight, and it seemed to fit the old motto of 'keep it simple, stupid!' It still needs wired up and the hoses attached, but I figure some progress is better than no progress at all. 2 Quote Link to comment Share on other sites More sharing options...
cf685f Posted March 21, 2016 Share Posted March 21, 2016 Looking good. Quote Link to comment Share on other sites More sharing options...
ff6cav Posted March 24, 2016 Author Share Posted March 24, 2016 After putting chargers on the batteries for the last 2 days, the old girl fired right up today! The fuel pump worked perfectly and the 707 ran great, and I couldn't resist going for a very quick drive up the road and back. Now that things are together and running, I have a family friend who is a retired heavy truck mechanic who will be looking over the clutch to see what exactly needs done with it. Quote Link to comment Share on other sites More sharing options...
ff6cav Posted March 24, 2016 Author Share Posted March 24, 2016 I also recently bought a GoPro and wanted to try it out 1 Quote Link to comment Share on other sites More sharing options...
fxfymn Posted March 25, 2016 Share Posted March 25, 2016 Nice job! Do you have the ladders, extinguishers etc. for the truck? Quote Money, sex, and fire; everybody thinks everyone else is getting more than they are! Link to comment Share on other sites More sharing options...
ff6cav Posted March 25, 2016 Author Share Posted March 25, 2016 6 hours ago, fxfymn said: Nice job! Do you have the ladders, extinguishers etc. for the truck? I was pretty fortunate on the equipment that came with it (hose, adapters, nozzles, etc), but ladders are the 1 big thing it is missing at this point Quote Link to comment Share on other sites More sharing options...
yarnall Posted March 27, 2016 Share Posted March 27, 2016 I bought a 3 section wood extension ladder off a C125 because the truck was doing to scrap. It has some rotten rungs but it not complete junk. I would sell it if you are interested. It is in Boyertown, PA. Quote Link to comment Share on other sites More sharing options...
ff6cav Posted March 27, 2016 Author Share Posted March 27, 2016 I'm certainly interested, sending you a PM Quote Link to comment Share on other sites More sharing options...
609albert Posted March 29, 2016 Share Posted March 29, 2016 Quote I would like to get an original mechanical fuel pump (spare ) for my 707 any ideals where to get new old stock? Quote Link to comment Share on other sites More sharing options...
ff6cav Posted May 12, 2016 Author Share Posted May 12, 2016 Progress recently has continued to be slow, but some odds and ends are primered and ready for paint. I also figured I'd share the link for the Facebook page I started last year for the engine, for those of you who are on social media : Engine 13 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.