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So, several weeks ago, my dad got into the MV sickness by buying a 1954 M38A1. It's a very solid truck. It had been sitting in a warehouse in Lilburn, GA since the mid to late 90s.
He has been working on it religiously, replacing what needed replacing, trying to get it going. He rebuilt the distributor. The fuel pump portion of the pump was rebuilt, but he could not find a kit for the vacuum portion. Yesterday, we managed to fire it up with him cranking it and me pouring gas into the carb. Unfortunately, the pump seemed to be pumping backwards, with tons of air being pumped back towards the tank. Thankfully, he had a new pump on hand (it's a pathetic piece of crap, made in China, but it's new). Today, he installed that pump and plumbed it and we fired it up.
It pumped, and the truck ran very nicely. Oil pressure held at about 40 and it idled like a champ. He switched it off and tried to crank it back up. That's when the headaches started.
It was hard to restart. Once it finally fired up, it ran rough and backfired. We found a bad connection on the inlet to the pump, so that might solve that problem.
The other, more important problem, however, is the fact that gas got into the oil. As it sat there, the bottom fell out of the oil pressure. It might be the gauge or the line to the gauge, not sure, but it was a concern. We checked the oil, and it had gas in it. It was new oil, so it was easy to tell.
Could the Chinese pump have a faulty gasket in it that's puking gas into the block? Other thoughts on this boondoggle?
He has been working on it religiously, replacing what needed replacing, trying to get it going. He rebuilt the distributor. The fuel pump portion of the pump was rebuilt, but he could not find a kit for the vacuum portion. Yesterday, we managed to fire it up with him cranking it and me pouring gas into the carb. Unfortunately, the pump seemed to be pumping backwards, with tons of air being pumped back towards the tank. Thankfully, he had a new pump on hand (it's a pathetic piece of crap, made in China, but it's new). Today, he installed that pump and plumbed it and we fired it up.
It pumped, and the truck ran very nicely. Oil pressure held at about 40 and it idled like a champ. He switched it off and tried to crank it back up. That's when the headaches started.
It was hard to restart. Once it finally fired up, it ran rough and backfired. We found a bad connection on the inlet to the pump, so that might solve that problem.
The other, more important problem, however, is the fact that gas got into the oil. As it sat there, the bottom fell out of the oil pressure. It might be the gauge or the line to the gauge, not sure, but it was a concern. We checked the oil, and it had gas in it. It was new oil, so it was easy to tell.
Could the Chinese pump have a faulty gasket in it that's puking gas into the block? Other thoughts on this boondoggle?
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