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#1
10-19-2025, 02:04 PM
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wiper motor pump blues
I replaced the motor and lines as well as the reservoir and I get no flow even though the pump is working. is there some sort of trick to prime it or other secret to getting it going ?
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1981 Trans Am project -YJ 400 stroked to 488 CID-74cc Eheads-10.95:1-Northwind Intake-Holley Terminator-TH400-3:55 Moser rear-Dougs Headers.... |
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#2
10-19-2025, 06:10 PM
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Did you check the bellows? Be sure that you are, in fact, sucking when the piston is moving.
In my experience 3, 4, 5 cycles should get you something unless there is a blockage at the jet, a bad supply line, or a bellows not sealing tightly against the wall and not producing any suction. Best advice OTTOMH.
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Lewis -------------------------- Lewis Rosenthal '63 Bonneville Convertible '56 Safari '82 Firebird SE POCI #3596 (since 1978) |
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#3
10-21-2025, 11:25 AM
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It helped when I took a mouth full of water and pushed the water into the pump through the suction line.
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79 T/A,WS6,403,A3 96 T/A,WS6 (#1344) ,M6 72 442,W30,A3 96 Vette convertible Grand Sport (#713),F45,M6 13 Vette 427 convertible (#1425),Z30/Z25,M6 |
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#4
10-21-2025, 04:35 PM
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I haven had fluid in mine in 40 years. Who know if it even works. You actually use the pump?
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#5
10-22-2025, 06:12 PM
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I would if it worked. Would be nice to be able to wash the windshield occasionally when needed
__________________
1981 Trans Am project -YJ 400 stroked to 488 CID-74cc Eheads-10.95:1-Northwind Intake-Holley Terminator-TH400-3:55 Moser rear-Dougs Headers.... |
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#6
10-23-2025, 10:30 AM
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Since I posted, I removed my pump ant tested it, I forgot I put a new one in like 25 years ago, I’d bench test the one you have. I picked up 5 pumps years ago for the stash. Prob won’t need any, Get a 12v supply, bench test yours.
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