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Hello all; long time no post.
Decided to "rebuild' my metering oil pump for my 1985 12a. In removing the pump, the tiny washer that the linkage passes through went flying off into oblivion. Any idea what size this washer may be? Surely I can find something at my local hardware store ...?
Thank you. Is there both a washer and a lock clip? I thought there was a washer with a wire clip pushed through one of the small holes in the linkage. Also, the 1mm space - this is when everything is basically "neutral"? Does that make sense?
Like this on Atkins Rotary site?
Yep, there's a washer and a wire clip that goes through one of the holes. I don't recall anything like that c-clip.
The 1mm space is for free play, when the lever is fully down it pumps as much as needed for idling.
If there's no space or the lever is caught and pulled up a little then more oil will flow, so it's to help reduce oil consumption.
Thank you all. I think I'm good for the washer. I picked up some from the local True Value / Ace Hardware.
Next question - and it's related.
While removing the metering oil line from the oil metering pump, I tore one of the rubber ends. (The actual lines are about 7 or 8 years old). I picked up some "per foot" hose line (MOPHOSE-1) from MazdaTrix. I plan to replace the rubber end of the metering oil line with this stuff, but I assume I need some sort of sealant or something to use for "gluing" the new rubber (?) line to the end of the clear plastic line? Basically replacing the Mazda OEM rubber end with this hose. The rest of my clear lines are good, so I don't really want to replace those. Any suggestions on what to use to "glue" the old to the new?
In the description at Mazdatrix, they cite your exact situation and don't suggest glue, just that "it can be used to splice an OEM metering hose by pushing over the OEM plastic hose." I think you're good doing that, the pressure in the hose isn't high as it's open ended. And as long as you overlap enough to hold it mechanically should be good.
In the description at Mazdatrix, they cite your exact situation and don't suggest glue, just that "it can be used to splice an OEM metering hose by pushing over the OEM plastic hose." I think you're good doing that, the pressure in the hose isn't high as it's open ended. And as long as you overlap enough to hold it mechanically should be good.
Thanks for the reply. I wondered about that, and actually sent them an email today (Sunday, so they probably won't see it until tomorrow). The OEM ends certainly appear to have some sort of adhesive on them. I saw where one guy used zip ties, but that seems kind of risky to me. I do have the Mazda clips for where the rubber end goes over the nipple on the OMP; but I just want to be sure I don't have any seepage where the new rubber will have to go over the old line. Guess I'm a tad nervous.
09-27-22, 04:53 PM
