Posted by mtraven on July 13, 2017 at 19:12:19 from (73.208.121.1):
I am currently working on an overhaul of my ford 1320 tractor (Shibaura 1.3L 3cyl diesel). I am about to bolt the head back on (for the second time) and I noticed that 1 of 3 glow plug holes have a plug & vent shown here:
I think the intend purpose is to protect the head gasket & cylinder walls from the direct heat of the glow plug. I think this because of the damage seen on my original head gasket & the one I ran for <15hrs after the rebuild.
But the fact that the original is damaged on #1 & 3, tells me there were no plugs to begin with (ie I didn't loose them). Additionally, the 2 photos I have from the manual both picture plugs in all 3 glow plug ports. This begs the question, why don't I have them? were they intentionally not installed? was this a manufacturing error?
After seeing what it did to my head gasket after only 15hrs & very minimal glow plug use, I am leaning towards machining plugs to protect the rest. Does anyone think this is a bad idea? if so why?
turning the plugs is well within my skill set, however, I lack the expertise to know from what type of cast iron these should be made?
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