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Ford 9N, 2N & 8N Discussion Board

Re: 8n with a 9n motor

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Posted by Dell (WA) on September 25, 2012 at 12:54:36 from (

In Reply to: 8n with a 9n motor posted by thommoos on September 25, 2012 at 08:57:22:

thommoos........while the 4-nipple frontmount is rated at 23hp and the 5-nipple sidemount is rated at 26hp. (sidemount has 6.5:1 compression while frontmount has 6.0:1 compression) ALL new replacement flatheads ($150, cheap) are rated at 6.5:1 compression. That is certainly cheaper than $1500 for engine rebuild.

Learn how to do a "tune-up", new points (0.015), condenser and NEW sparkies. Recommend AutoLite AL-437, gapped 0.025" Keep yer itchy-twitchy fingers away from them handy-dandy carb tweek-ums. Iff'n you could not RESIST, ask and we'll instruct you how to re-adjust yer M/S carbie.

Learn how to test yer engine compression, Ford specs: 90psi minimum (new $1500 engine rebuild tests 125psi) ...and... learn how to change and adjust yer points (0.015) on yer kitchen table. Ittza 2-bolt, 15-min job to remove yer weird 4-nipple frontmount and change the points (0.015) on the kitchen table. Just un-snapple yer capple and letter dangle. Installation is a reversal of the removal ...except... finger start the 2-bolts and install yer rotor. Now rotate yer rotor until the backside drive tang drops into the camshaft drive slot. Now tighten yer 2-bolts and re-snapple yer capple. Simple, eh?

Remember to "polish" the INVISIBLE corrosion from between the points (0.015) after installation. I use a clean $1-bill clamped between the points and pullet thru. Iff'n yer really cheap, tear a strip from HEAVY brown paper grocery sack and use that. .......Dell, yer self-appointed sparkie-meister


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