Vae Victus
Posting more than I know
I'm working on my '70 FJ40, and I have put a Racer65 Carb 2F on. The PO had put a single diaphragm booster (along with the firewall rib adapter), and front disc brakes, so we added a dual master brake cylinder for a little redundancy in the system.
Problem is, the new carb hits the MC on the secondary diaphragm. This is the 2nd attempt at a smaller MC ... It all fit until I realized I was missing the insulator under the carb which raises it another 1".
Here are my options:
1. Shorter MC. Use a compact MC shorter than 6" - but I haven't found one that works yet.
2. Modify the secondary diaphragm on the carb if possible (it is the part that is making contact with the MC).
3. Go back to a single circuit MC. Loses the safety factor of dual circuit.
4. Go back to the OEM-style carb for this model year. (rather not since I've bought this one but it's a near last resort)
5. Remove the booster and run a larger bore MC like TheCrazyGreek suggested here (not 100% confident in this option so it's like the last option for me)
Creative group here. Love to have input on the options.
Problem is, the new carb hits the MC on the secondary diaphragm. This is the 2nd attempt at a smaller MC ... It all fit until I realized I was missing the insulator under the carb which raises it another 1".
Here are my options:
1. Shorter MC. Use a compact MC shorter than 6" - but I haven't found one that works yet.
2. Modify the secondary diaphragm on the carb if possible (it is the part that is making contact with the MC).
3. Go back to a single circuit MC. Loses the safety factor of dual circuit.
4. Go back to the OEM-style carb for this model year. (rather not since I've bought this one but it's a near last resort)
5. Remove the booster and run a larger bore MC like TheCrazyGreek suggested here (not 100% confident in this option so it's like the last option for me)
Creative group here. Love to have input on the options.
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