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Thunder volt coil

R

redgems

Member

I have a SMTA that's been rebuilt ,However L.P. head was pretty bad. Machine shop welded cracks,did guides and valves but It seems I am still getting slight oil from a valve guide in one cylinder and little water in other cyl. At High or low idle I get slight miss.AT full load runs fine. Compression is at 170. I am thinking of putting one of Dennys Carbs 55,000 volt coil on it. Do you think it would help plug fire better?Can points and condenser handle that hot coil? Engine has 4 1/8 flat top pistons with 450 l.p. head.A.L.3116 plugs. I am trying to make it to a show in couple weeks wanting it to run decent until I can tear down again.
Any thoughts, advise,criticisms, welcomed. Tony
 
you will need to get the cylinder head fixed evenntually. you can put umbrella seals on the valves to stem some of the oil problem, and for now, go to napa and get some anti-fouling caps for the spark plugs. they screw on the end of the plug and pull it out of combustion chamber so they dont foul as quick. i havent heard any good reports on dennys, check on buyer seller feedback forum down below for more info on them. last resort on the coolant leak, if it is pulling water in the cylinder, you may try some stop leak in the radiator. be better to fix the head tho.
 
try some stopleak (I like subaru OEM from their parts counter)
The hotter coil omly makes the necessary voltage to fire the plugs. So a coil able to produce 100,000 volts will only make 13,000 to fire the plug! Thus a good coil will make 20,000 easily. Do not waste you money. I would recheck the valve settings, put valve stem umbrella seals on the stems (can be done by removing the rockers, then putting about one foot of cotton rope in the cylinder, then raising the piston by hand to hold the valves shut, then removing the retainer and spring to put on the rubber umbrellas.) Jim
 
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