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Old 02-15-2007, 02:50 PM
WD8CDH WD8CDH is offline
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Join Date: Jun 2006
Location: NY
Posts: 710
I think you want the pressure gauge before the filter rather than after if your lift pump is before the filters. The pressure after the filter is mostly controlled by the IP pressure relief on the IP.

If your lift pump pulls from the filters, then you need a vacuum gauge between the filter and the lift pump rather than a pressure gauge.

VDO makes mechanical pressure gauges at 15psi and 30 psi. Unfortunatly, electrical fuel pressure gauges cost about $200 to $300 more than mechanical gauges.
Ron Schroeder
'85 300 Turbo Diesel 2 tank WVO
'83 300 Turbo Diesel 2 tank WVO
Some former WVO vehicles since ~1980:
'83 Mercedes 240D
'80 Audi 4000D
'83 ISUZU Pup
'70 SAAB 99 with Kubota diesel
'76 Honda Civic with Kubota diesel
'86 Golf
Several diesel generators
All with 2 tank WVO conversion
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