It may be different. Take a look at the photos my canister above. From the top, looking into purge valve housing you can see the .030" bleed to the cylindrical chamber. Looking inside there is a dot of light coming through both .030" bleed and the .040" passage (which goes up the center of the purge valve housing).
Was yours was arranged differently? Your photo of the inside looks similar, but its hard to be sure. Did they just change materials of the
housing from off white to black, or was there also a design change?
The parts book from cfsja shows the same p/n for 1981-1985 US sold v-8 wags and most J-10s.*
The p/n for the 1986 US sold SJ V-8 is the same as the 1981-85 6 cyl. SJ & J10.
(There is also an additional "restrictor plug" generically listed with the hoses - not clear for what application or which hose lines /ports it fits. Wasn't on my '85 which was pretty factory orignal in this respect when I got it.)
I agree there also a draw on the vapor separator. But that bleed is much much smaller. In terms of area its around a tenth of the main purge. It just isn't flowing very much because the .030" restriction is a much easier path for the air.
Further, when the secondary purge opens, the vapor separator gets exposed to additional manifold vacuum through the far less restrictive .040" passage in the the top of the charcoal canister.
*edit: The number stamped or molded into the top of my vapor canister housing is 3232956 and matches the parts book number for the 81-85 SJ v-8s.
Was yours was arranged differently? Your photo of the inside looks similar, but its hard to be sure. Did they just change materials of the
housing from off white to black, or was there also a design change?
The parts book from cfsja shows the same p/n for 1981-1985 US sold v-8 wags and most J-10s.*
The p/n for the 1986 US sold SJ V-8 is the same as the 1981-85 6 cyl. SJ & J10.
(There is also an additional "restrictor plug" generically listed with the hoses - not clear for what application or which hose lines /ports it fits. Wasn't on my '85 which was pretty factory orignal in this respect when I got it.)
I agree there also a draw on the vapor separator. But that bleed is much much smaller. In terms of area its around a tenth of the main purge. It just isn't flowing very much because the .030" restriction is a much easier path for the air.
Further, when the secondary purge opens, the vapor separator gets exposed to additional manifold vacuum through the far less restrictive .040" passage in the the top of the charcoal canister.
*edit: The number stamped or molded into the top of my vapor canister housing is 3232956 and matches the parts book number for the 81-85 SJ v-8s.
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