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OMP lines, I need to prefab them.

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Old 11-17-10, 07:37 PM
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OMP lines, I need to prefab them.

Might have to fix a leaky PD duing a 'free day' in my auto shop at CC. Only have 3.5 hours, but all the tools I'll need. I want to prefab the oil injection lines so I can just R&R them when the LIM is taken off. I need:

-Hose material (and cost)
-The lengths the 4 hoses need to be
-The size banjo bolts and clamps to use.

Thanks.
Old 11-17-10, 08:14 PM
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Originally Posted by sv51macross
Might have to fix a leaky PD duing a 'free day' in my auto shop at CC. Only have 3.5 hours, but all the tools I'll need. I want to prefab the oil injection lines so I can just R&R them when the LIM is taken off. I need:

-Hose material (and cost)
-The lengths the 4 hoses need to be
-The size banjo bolts and clamps to use.

Thanks.
j/p
Old 11-17-10, 08:22 PM
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Originally Posted by Innovation
A little confusion here. Your title says OMP, oil metering pump. Your post says PD, pulsation dampner. I don't know of banjo bolts associated with the OMP?
I'm replacing the PD, and the OMP lines have been described multiple times by members here as having the resilience of 'spun sugar' around this age. So, I'm going to replace them when I swap the PD. And if not banjo bolts, then what does one call the connectors at both ends of the OMP lines?
Old 11-17-10, 08:35 PM
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Originally Posted by sv51macross
I'm replacing the PD, and the OMP lines have been described multiple times by members here as having the resilience of 'spun sugar' around this age. So, I'm going to replace them when I swap the PD. And if not banjo bolts, then what does one call the connectors at both ends of the OMP lines?
Your right there is four banjo bolts that hold the lines in place at the OMP. The only thing I have heard about the other connectors are called oil nozzles.
Old 11-17-10, 08:43 PM
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Here you go.

https://www.rx7club.com/2nd-gen-archive-72/rebuilding-omp-oil-injection-lines-348068/

You're welcome.

I would recommend getting some new intake gaskets, and some hylomar sealant to use during reassembly.
Old 11-17-10, 08:50 PM
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Thanks, 'Critter. I was looking for that thread.

So, what about the banjo bolts though? I want these prefabricated, anyone know what size/type is closest to stock?
Old 11-17-10, 09:23 PM
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I'm unsure of the size, but if I remember in a little while I'll see if I have the one's off the NA engine still out there. If so I'll measure them and get back to you.
Old 11-18-10, 08:21 AM
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Have some vacuum hose and fuel line handy as well. The vac lines get old and hard, and can break. The fuel lines can get hardened and seem to fuse to the rail, removing them can result in tearing.
Old 11-18-10, 09:16 AM
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To the other poster - there are banjo fittings at both ends of the lines (the oil nozzles go throught the banjo fitting and thread into the housings/intake.

How much does the dealer want for these? It's almost something I woudn't make myself, since the originals are pre-curved/molded.
Old 11-18-10, 09:48 AM
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Originally Posted by pfsantos
To the other poster - there are banjo fittings at both ends of the lines (the oil nozzles go throught the banjo fitting and thread into the housings/intake.

How much does the dealer want for these? It's almost something I woudn't make myself, since the originals are pre-curved/molded.
Mazdatrix has prices listed here.
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