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I bought a 73 ironhead as a basket. Got it all back together got a new primary cover and it has a hole like to get to the tensioner bolt. None of the other covers have it and im wondering can i just weld it shut or just use a rubber plug? And what is the fill level? Any one have any ideas?
Last edited by RoadPirate; May 4, 2009 at 04:02 PM.
They changed the method for adjusting the primary chain in 1977. So stock for 1973 was inside the primary and 1977 on it was outside using the stud that goes thru that hole. It is much more convenient on the outside so if you could get and install a later primary chain adjuster that would be good.
Otherwise you could, as you say, weld it; or tap it and put in a pipe plug; or whatever.
Here is a pic of the oil level screw. Primary takes approximately 1.5 pints [24 oz]. Remove screw. With bike level [supported with a tie down, eh], add oil until it starts to flow out the hole; wait until it stops; replace screw.
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