Well, we are done with our second in-frame on our 8V92TA. It runs like a charm now, but I'm having starting problems. We've traced the problem to a Kysor pressure switch at the fuel filter. I have bypassed the switch temporarily, as we really wanted to get out of the shop, and they did not have a replacement in stock.
Now I'm having trouble finding one, and I thought I would call on the collected wisdom of the group to help.
The switch is marked Kysor Cadillac (Kysor was in Cadillac, Michigan) PressureStat 33130-10 NC. PressureStat is just their trade name for a pressure switch/sender, NC stands for normally closed, and -10 is, I think, the pressure setting, but I am not sure if that is in PSI or Bar.
Kysor Industrial was split up years ago, with parts going to Kysor HVAC (air conditioning), Borg-Warner (fans and belts), and Medallion Instruments (gauges and senders). As a side-note, the old Kysor plant in Cadillac is now a SuperFund site. So Medallion is the place I would need to go for a genuine "PressureStat" replacement, but I could not find a cross-reference to this part number (33130) anywhere. PEDCO gave me a "new" part number of 1042-08240-10, which looks right (single setpoint, 1/8" NPT, single screw terminal, grounding type, normally closed).
Enough of the background, here are my questions:
(1) What does this do? It's not on my schematic, so I can only guess. And that guess is: it prevents the starter from cranking once fuel pressure has built to the indicated setpoint. This prevents you from trying to crank an already running engine, and it also cuts out the starter once the engine is running. Does this sound correct, or am I all wet?
(2) What is the correct setpoint for this switch? Would it be 10psi, or 10 Bar (about 145 psi)?
I'm asking because Cole-Hersee and others make similar switches, and it will be much easier to locate a part if I can cross-reference it to a more common manufacturer. If I know the pressure setting, I can probably find a fuel pressure switch at NAPA.
Any thoughts?
-Sean
http://OurOdyssey.BlogSpot.com
Sean,
You're right in that this is a starter protection switch and a stock switch from NAPA should work fine. If it's a one wire grounding circuit type then standard oil pressure switch might work but if the set point is too low (1-2 PSI) it might disable the starter too soon. I think a 10 PSI set point is fine and the max pressure is probably not more than 60-70 PSI.
Len
here's some very very helpful info about switch
http://www.colehersee.com/pdf/master_cat/l_oil.PDF
http://www.egauges.com/vdo_send.asp?Sender=Pressure_Switch_6_8
http://www.egauges.com/vdo_send.asp?Sender=Pressure_Switch_15
I would think it's to prevent starting an already started engine
my educated guess the switch is rated PSI not bar
got it
http://www.colehersee.com/catalog_top/index.htm
go to SWITCHES and hit the + to expand
HIT OIL/AIR/VAC to expand
look for switch # 8643
perfect
oooops
Replacement for: Chrysler 136080A, 14272A, 1527574, 1594936, 1704329, 1818830, 2822176, 3004106, 617, CH-2468
Replacement (continued) Delco C-1801, Jeep 941968, 9309386, 938092, Motorcraft SW-332, SWC-332
gets even simpler
it's also a WELLS PS30 (button type push on terminal) (accepts push on female) just like Cole Heerse
autozone # ps30
almost any automotive store
Sean, did you find the source of your engine dirt intrusion?
Sean, I too would be interested in hearing what the issue was and how Pedco treated you.