The Dist. Cap. I bought has 8 contacts, which is 1 on a 152?

xXxNatexXx

New member
Hi there!

New to the forums, got a 67 Scout 800!! :gringrin:



so, the cap I bought at the auto parts store has 8 holes in it, with only 4 actually having brass contacts in them.

I initially thought that the first hole with brass in it clockwise from the one marked as "1" (the hole marked as "1" is a dummy, with no brass inside it) would be number one for my application.

I got a lot of firing back up through the carb, so I figured that wasn't right.

I've since tried all the different contacts as number one, with my efforts proving fruitless, and was hoping to get some clarification on the issue.

I got the firing order correct, 1 3 4 2

thanks!
 
Hi nate. Welcome to the forum. This is a fairly common issue for new owners performing their first tune up. Here is what happened. When you removed all your plug wires from the old cap to place them on the new cap, you got the order of the wires mixed up. Here's what you need to do. Remove all the wires from the cap and start over. You need to rotate the engine (by hand if necessary) and place #1 cylinder at top dead center on the compression stroke. To ensure that you are on the compression stroke, remove the #1 spark plug and gently wedge a small chunk of paper or plastic into the top of the hole. When the piston travels upward, it is in the compression stroke and the compressed air will poof the wad out of the hole. At this point, the scribe notch on your harmonic balancer should be lined up between 0 and 5 degrees before top dead center (tdc) on the index Mark. 0 on the index is tdc. Left of 0 is after tdc. No reason to be there. Right of 0 is before tdc, as shown below: (the dots are just place holders).

..a.tdc.b
..|...|...|...|...|
..5...0...5..10.15
.........|
....hb scribe

with the dizz cap removed, look at where the rotor is pointing. Now set the cap in place and make note of which contact terminal is directly above the rotor. That is your #1 plug wire location. The rest of the wires can be routed in a clockwise fashion from there according to the firing order.
 
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