Mechanical govenor injection pump oil level plug

[chrism0dwk]

Hi folks,

Can anyone tell me what is the correct size of oil level plug bolt for the mechanically governed Simms fuel injection pump on my Super Dexta? It seems some previous owner has bodged an overlong hex-head screw (seems like it's metric, too), complete with washer, into the hole and it's leaking like a seive. I'd like to replace it with the correct size.

Thanks,

Chris

[Brian]

If someone has fitted a "new" plug I would suspect that they have crowded the threads out of the pump housing. This was easily done if the plugs were overtightened with a long ring spanner. You are probably going to have to drill and tap a larger hole in the housing as you will not get it back to the original.