grumpin Posted October 25, 2019 Share Posted October 25, 2019 We need to find a good source of silicone-based vacuum caps. Hopefully someone has a good source! Link to comment Share on other sites More sharing options...
grumpin Posted October 25, 2019 Share Posted October 25, 2019 We need to find a good source of silicone-based vacuum caps. Hopefully someone has a good source! I’m going to try these hypalon caps by Pico Wiring. Hypalon is supposed to be heat, chemical and UV resistant. http://www.picowiring.com/pdf/Cat-4.pdf You can get in there and find the catalog. I’ve used their products before. A local parts store used to carry their products. Link to comment Share on other sites More sharing options...
Gary Lewis Posted October 25, 2019 Author Share Posted October 25, 2019 I’m going to try these hypalon caps by Pico Wiring. Hypalon is supposed to be heat, chemical and UV resistant. http://www.picowiring.com/pdf/Cat-4.pdf You can get in there and find the catalog. I’ve used their products before. A local parts store used to carry their products. They look good, but I didn't figure out the price on the black ones. So let us know what you think of them as well as the price, please. Link to comment Share on other sites More sharing options...
ctubutis Posted October 25, 2019 Share Posted October 25, 2019 They look good, but I didn't figure out the price on the black ones. So let us know what you think of them as well as the price, please. Two weekends ago, a friend and I removed the 4V Holley from my 400 and took it apart a bit... there's a tiny orifice through which vacuum flows (for the secondaries actuator) between two castings... there's a gasket in that recess that turned to mush and blocked the flow, hence the 4Vs never opening. That carburetor was rebuilt less than 2 years ago, sheesh, that didn't last long. We replaced it with a rubber O-ring from the hardware store but it's probably not fuel-resistant so I don't really know how long it's going to last, but it gets the truck going and answers a question. Thanks for you guys' help! :) Link to comment Share on other sites More sharing options...
Gary Lewis Posted October 25, 2019 Author Share Posted October 25, 2019 Two weekends ago, a friend and I removed the 4V Holley from my 400 and took it apart a bit... there's a tiny orifice through which vacuum flows (for the secondaries actuator) between two castings... there's a gasket in that recess that turned to mush and blocked the flow, hence the 4Vs never opening. That carburetor was rebuilt less than 2 years ago, sheesh, that didn't last long. We replaced it with a rubber O-ring from the hardware store but it's probably not fuel-resistant so I don't really know how long it's going to last, but it gets the truck going and answers a question. Thanks for you guys' help! :) Does your truck run properly now? Link to comment Share on other sites More sharing options...
ctubutis Posted October 25, 2019 Share Posted October 25, 2019 Does your truck run properly now? It's been parked for ~2 weeks now so the best I can say is that "it ran well when parked." ;) Seriously... it's been parked for ~2 weeks now (went to Chicago last week) I should start it up and see how it behaves.. I'm betting the choke still needs adjusting. This is my only 4WD vehicle and it has snowed twice already with another 4-8" coming this weekend, and it's not even Halloween yet.... Link to comment Share on other sites More sharing options...
Gary Lewis Posted October 25, 2019 Author Share Posted October 25, 2019 It's been parked for ~2 weeks now so the best I can say is that "it ran well when parked." ;) Seriously... it's been parked for ~2 weeks now (went to Chicago last week) I should start it up and see how it behaves.. I'm betting the choke still needs adjusting. This is my only 4WD vehicle and it has snowed twice already with another 4-8" coming this weekend, and it's not even Halloween yet.... You won't need the secondaries in the snow. Link to comment Share on other sites More sharing options...
ctubutis Posted October 25, 2019 Share Posted October 25, 2019 You won't need the secondaries in the snow. LOL!!!!! :) What about when I get stuck? Link to comment Share on other sites More sharing options...
Gary Lewis Posted October 25, 2019 Author Share Posted October 25, 2019 LOL!!!!! :) What about when I get stuck? All the secondaries will do is get you stuck faster or deeper, not get you out. Anyway, now you can drive it back here next year. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted October 25, 2019 Share Posted October 25, 2019 You won't need the secondaries in the snow. Actually, with stock (pizza cutter) tires, sometimes letting it dig to solid ground is the answer. And, definitely around here, you need to keep the tread from packing solid. Otherwise you're on slicks, no matter your tread pattern. Link to comment Share on other sites More sharing options...
Recommended Posts