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DUI - flat gasket to block or o-ring?

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62Ranchero200
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DUI - flat gasket to block or o-ring?

Post #1 by 62Ranchero200 » Thu Mar 20, 2014 9:07 am

Greetings Ford Six Fans,

I purchased my DUI many months ago for my old 200, but never had a chance to install it before I realized that the 200 needed to be rebuilt or replaced. Now I want to use the DUI with the new 250, and I'm ready to install it.

It's been so long since I purchased the DUI that I can't remember - does it use a flat gasket between the distributor body and the block? Or just an o-ring that seats into a groove? I can't find a gasket anywhere. I can't find a flat gasket at any auto parts web site, but I have seen O-rings. If it does require a flat gasket, I'll have to either get another one from Performance Distributors, or make one from gasket material.

Thanks
Bob
62 Ranchero, .020 over, 252 cid, early forged 300 rods, forged RaceTek pistons, ARP mains bolts & studs, balanced & blueprinted, CI AL head (milled, ported, dual springs), 1.6 adj rockers, Smith Bros, 280/280/110 cam, CI intake, Holley "500 CFM", DSII, MSD, CI SS headers, duals, FlowMasters, PMGR starter, 1 wire alternator, Optima battery, custom radiator, T-5z, 10" organic clutch, 5 lug 8" w/3.80 Trac Loc, rear drums, front 5 lug discs, Centerlines. Next-carb ?

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wsa111
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Re: DUI - flat gasket to block or o-ring?

Post #2 by wsa111 » Thu Mar 20, 2014 9:57 am

Bob, o'ring should be already on the housing of the distributor.
Before installation lube the housing area & o'ring area. Also put heavy oil or moly lube on the distributor gear to make sure no wear occurs on a dry start.
67 mustang,C-4, with mod. 80 hd, custom 500 cfm carb with annular boosters, hooker headers, dual exh.-X pipe, flowmaster mufflers, DSII dist. MSD-6425CL & MSD-Blaster 8252 Coil. Engine 205" .030" over with offset ground crank & 1.65 roller rockers. 9.5 comp., Isky 262 cam.
2003 Ford Lightning daily driver. Recurving Distributors. billythedistributorman@live.com
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64falconsix
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Re: DUI - flat gasket to block or o-ring?

Post #3 by 64falconsix » Mon Mar 31, 2014 8:42 am

O ring.... the one that came with mine was too thick.... pick up another at ace hardware. 3,000 leak free moles so far.
64 falcon 2dr 200 C.I. .040 decked ,comp. 260 .440, C.I. adjustable timing chain w/ 79 log head 52.cc , offy w/ triple webers , Clifford header , D.U.I. , C/4 2,200 stall , Transgo Stage 2 reprogramming kit , 7 1/4" with 3.20 gears. NX, N2O 75HP shot.

10.29@ 61.91 M.P.H. in the 1/8th mile. 4/12/13

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