The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

71RestoRod · 03-11-2010, 08:23 PM

You might be able to use an oil pressure gauge for the off-idle test if you're careful. The line pressure on the low side is only about 10-20psi but if you rev it at all it will quickly build up to 100-200psi which would probably blow the fittings off of the gauge.

If you can swing it, take the time and find a 300psi gauge. It will probably come in handy diagnosing your problem. You might also call AAMCO or some local trans shop to see if they'll hook up a gauge and diagnose no charge.

03-11-2010, 08:23 PM	#77
71RestoRod Registered User Join Date: Sep 2003 Location: Evergreen, CO Posts: 494	Re: TH350 to 700R4 You might be able to use an oil pressure gauge for the off-idle test if you're careful. The line pressure on the low side is only about 10-20psi but if you rev it at all it will quickly build up to 100-200psi which would probably blow the fittings off of the gauge. If you can swing it, take the time and find a 300psi gauge. It will probably come in handy diagnosing your problem. You might also call AAMCO or some local trans shop to see if they'll hook up a gauge and diagnose no charge. __________________ 71 Blazer / GMPP ZZ383 / MPFI / 700R4 / 4-Wheel Disk / Ground-up frame off almost completed resto-mod