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Thread: Help me get this thing running
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smigjo
1st Gear
Posts: 19
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posted March 24, 2014 01:04 PM |
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Help me get this thing running
I have a 1975 Mazda Repu with the 13b and hitachi carb. It had really old gas in (really old) so I went ahead and dropped the tank. At this moment I'm trying to find a place to get the tank done, but I figure while it's out I might as well redo all the fuel lines, fuel filter and fuel pump. Would a generic walbro 255lph inline pump with a filter, and regulator work good on this? I know I could pick up a corvette regulator and filter for pretty cheap, has anyone ever used these? They're very common for LS swaps.
Some of this may seem trivial, but I'm new to rotaries.
I just wanna know do's and don'ts to replacing fuel lines and good combinations. I'm considering removing the bed to get better access to the frame too. My other concern is wiring.. I've found lots of wire mess in this truck (it sat around, not driven or anything for about 17 years at my grandpa's house) I'm considering buying a basic painless harness and reworking it all.
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Brad
Rotorhead
Posts: 1672
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posted March 24, 2014 02:51 PM |
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Most people use a Carter fuel pump and the Holley FPR. You can get both on Summit Racing.
It doesn't need any more than 5psi and 3/8" fuel line.
Pulling the bed is easy, there's like 8 bolts that hold it to the frame, plus light wiring and the evap can. 2 man job to lift it.
Congrats of the truck, they're fun.
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smigjo
1st Gear
Posts: 19
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posted March 24, 2014 04:21 PM |
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quote:
Most people use a Carter fuel pump and the Holley FPR. You can get both on Summit Racing.
It doesn't need any more than 5psi and 3/8" fuel line.
Pulling the bed is easy, there's like 8 bolts that hold it to the frame, plus light wiring and the evap can. 2 man job to lift it.
Congrats of the truck, they're fun.
Thanks, I've had it sitting in the barn for about a year and I'm ready to hear it run haha. I'll order those now, thanks for that. So like 3/8" steel or aluminum line to run the frame and just some high pressure rubber line to run to the tank and to the carb? What if I wanted to run line with provisions for EFI in the future, cause I've considered doing fuel injection in it..
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Brad
Rotorhead
Posts: 1672
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posted March 24, 2014 08:22 PM |
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You can use low pressure rubber lines with a carb but the high pressure ones are thicker and have some belting.
For efi use the high pressure for sure.
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smigjo
1st Gear
Posts: 19
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posted March 25, 2014 09:56 PM |
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Ok I ordered 25 foot of aluminum fuel line off summit. I'll pick some rubber fuel line too, install that carter pump and get my tank done..somewhere. I think I found a radiator shop about an hour from here, they're surprisingly hard to find around here. Once all that's done I guess we will see if it wants to start.
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Brad
Rotorhead
Posts: 1672
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posted March 26, 2014 07:20 AM |
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If you really just want to try and start the motor, you can pour gas into the float bowls. There are vent tubes that stick out the top of the carb that lead directly to the float bowls.
Don't know if the old Hitachi carbs (used on Rotary truck) have bowl drain plugs but the newer Nikki carbs used on the Rx7 do. I'd flush it with WD-40 or Deep Creep.
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