Hey seems u are very well acquainted with the 742b so here goes..have a 1991/1992 (says sept 1991 in one spot an fb 1992 in another so not 100%) 742b.the guy before me did engine rebuild an parts an everything look nice an clean an shiny but there are some wire ends not hooked to anything an even some places that are where hose would connect to an clamp hold that are just the metal nipples without any hose/anything..so I'm wondering what motor exactly it is an if you know where may get a schematic/diagram breakdown so I can try an get all odds and ends button up cause machine runs rough..I seen ur post about ignition so figured I'd reach out any help is appreciated thanksHey Fitz,
My 742B 4G32 gasser manual says to use the same oil that you use in the engine for the governor. I think mine was 10W30. The 90wt gear lube may be way to thick especially in the winter. I would drain the 90wt in the governor and put what the manual calls for which I believe mine was 10w30. You surely don't want to have to replace the governor because the oil weight was too heavy and blew a seal. I had to replace my governor because I couldn't find the side shaft seal and the governor was $1200 ouch. But I kept the old governor and going to take my time to see if I can find a suitable seal replacement from a seal manufacturer. If I recall right when adding oil to the governor remove the back and top plugs and fill via the top plug until you have oil coming out the back plug. Then replace both plugs. I think I read a caution in the manual that said you don't want to overfill the governor because it will create too much pressure inside the governor and possibly blow out a seal.
When I ordered my Pertronix electronic ignition I sent Pertronix my distributor number from the side of the distributor shaft to ensure they matched up the new module to my distributor. Just a little wiring and eliminating the resistor and putting in the new coil and it fired right up. Been running perfectly for years.
Hope this helps.
Hey seems u are very well acquainted with the 742b so here goes..have a 1991/1992 (says sept 1991 in one spot an fb 1992 in another so not 100%) 742b.the guy before me did engine rebuild an parts an everything look nice an clean an shiny but there are some wire ends not hooked to anything an even some places that are where hose would connect to an clamp hold that are just the metal nipples without any hose/anything..so I'm wondering what motor exactly it is an if you know where may get a schematic/diagram breakdown so I can try an get all odds and ends button up cause machine runs rough..I seen ur post about ignition so figured I'd reach out any help is appreciated thanks
Hey seems u are very well acquainted with the 742b so here goes..have a 1991/1992 (says sept 1991 in one spot an fb 1992 in another so not 100%) 742b.the guy before me did engine rebuild an parts an everything look nice an clean an shiny but there are some wire ends not hooked to anything an even some places that are where hose would connect to an clamp hold that are just the metal nipples without any hose/anything..so I'm wondering what motor exactly it is an if you know where may get a schematic/diagram breakdown so I can try an get all odds and ends button up cause machine runs rough..I seen ur post about ignition so figured I'd reach out any help is appreciated thanks
By chance do you remember the part number for the pertronix you ordered? Im running into conflicting answersHey Fitz,
My 742B 4G32 gasser manual says to use the same oil that you use in the engine for the governor. I think mine was 10W30. The 90wt gear lube may be way to thick especially in the winter. I would drain the 90wt in the governor and put what the manual calls for which I believe mine was 10w30. You surely don't want to have to replace the governor because the oil weight was too heavy and blew a seal. I had to replace my governor because I couldn't find the side shaft seal and the governor was $1200 ouch. But I kept the old governor and going to take my time to see if I can find a suitable seal replacement from a seal manufacturer. If I recall right when adding oil to the governor remove the back and top plugs and fill via the top plug until you have oil coming out the back plug. Then replace both plugs. I think I read a caution in the manual that said you don't want to overfill the governor because it will create too much pressure inside the governor and possibly blow out a seal.
When I ordered my Pertronix electronic ignition I sent Pertronix my distributor number from the side of the distributor shaft to ensure they matched up the new module to my distributor. Just a little wiring and eliminating the resistor and putting in the new coil and it fired right up. Been running perfectly for years.
Hope this helps.
Have you sold these parts?Here are the electronic ignition parts for the 742B.
Pertronix 1941 Mitsubishi 4 Cylinder Ignitor
PerTronix 40511 Flame-Thrower 40,000 Volt 3.0 ohm Coil
You can currently buy these on Amazon for about $115 together.
I have a brand new set that I can't use, and depending on how much shipping would be, I'd be willing you give you a deal on them If you're interested. Otherwise, Amazon has been the cheapest place that I've been able to find them. I'm trying to get rid of all the extra parts I have lying around for my 742B.
I still have the pats. I started a conversation with you.Have you sold these parts?
I would be interested pending price and shipping