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Lincoln Mark 7 Roller in an AT 79 F100

 
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Old 06-12-2017, 12:57 PM
Rick94110
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Lincoln Mark 7 Roller in an AT 79 F100

Hey All, My friend put a roller engine from a 85 or 89 Lincoln Mark 7 into an automatic 79 Ford F-100, flareside, Redwood Empire color. He's a motorhead, I'm an amateur do it yourselfer. It's now mine. When I got it, it had been loaned out and neglected. He used the carburetor from the f100 and was significantly losing power on acceleration. Using the tag on the carburetor, I got an f100 replacement carburetor from China. What a difference. It has the glug glug sound, and I think it's because of the single exhaust plus the fact that this Lincoln was probably fuel injected, and in addition, the designed gas pressure, I read somewhere is almost three times what I've got going which is an electrical gas pump located near the gas tank. I'm only required to have the old smog pump in there, and in the 79 smog system, it blows air into the valve covers, and also just before the catalytic converter. Except I'm missing the hose that goes just before the CAT. When I renew the smog, i'll put in another new catalytic converter along with the requisite hose from the smog pump. Putting in a new cat helped me pass smog (they didn't catch the 2nd hose right before the CAT). Otherwise, it's running fairly well, I'd like to do it justice, though. Currently, I'm using 42c spark plugs (the ones designed for the old 300 V6). the plugs have no oil, and am running the 1, 3, 7 firing order. and the local mechanic put it at 14 BTDC by ear. I took it down to 10 and moved it up to 12. Almost perfect. The pickup, plus the c4 transmission work nice (except for the a lazy second, unless I give it more gas), I'd say it's a 140 horsepower. I understand the engine ID number on the block will only tell me the year it was designed. Is the Spark plug the right one? Should the gaps be .042 or .52? The local mechanic said he can put a turbo on it. I went to the Lincoln Mark 7 Forum, and have had no feedback. I'm proud of my truck here in SF, the land of hills, Variable Valves, electric and Foreign makes. The 4C transmission has neat surprises. Just wondering why some v8's make a glug glug and others don't. Thanks.
 
 
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