Sorry, but compression tests are not that reliable on their own. There are many variables such as engine cranking speed, throttle position etc that can change the results. Leakdown gives good measurements and full pressure into the cylinders will tell you where the leaks are. On Waterboxers, this should also be done with the pressure cap removed to detect leakage into the cooling system. I just did a compression test on a van with readings of #1-125, #2-145, #3-130, #4-150. Guess what, the leakdown should all cylinders except #4 had leaking intake valves. No wonder the idle is rough. Dennis -----Original Message----- From: wilden1@juno.com [mailto:wilden1@juno.com] Sent: Monday, June 30, 2003 9:53 PM To: dhaynes@optonline.net Cc: vanagon@GERRY.VANAGON.COM Subject: Re: Used Van Need help Hot damn! Dennis choke that seller down to the last penny. This is a used Vanagon? Right? Anything above about 135 psi is uncommon on these things. Stan Wilder
On Mon, 30 Jun 2003 18:49:34 -0400 Dennis Haynes <dhaynes@OPTONLINE.NET> writes: > With those compression numbers, a leak down test is definitely in > order. > > Dennis > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On > Behalf > Of rmstewart@mac.com > Sent: Monday, June 30, 2003 5:01 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Used Van Need help > > Hey everyone, > > Just got the report from the Mechanic in Florida, the van sounds to > be > in > good shape. > > Here the numbers from the compression test, the mechanic says the > numbers > are excellent for the vanšs age and mileage of 150K, herešs what he > said > in > the positive: > > Engine Compression # > 125/130/130/130 > > Shifts very smooth, like new. > > Engine is rock solid, no leaks, gasket problems, no evidence of oil > or > coolant leaks. > > Shocks are good, looked like they have been replaced. > > Tires good life 60% or more life left, spare is full size tire, > decent > tread > needs air. > > > The Bad: > > Problems found: > > Lic. Plate bulb out > > Rear wheel cylinder and brake shoes need replacing > > Right passenger side window motor not working > > Tail pipe rusted out 8˛ piece > > Rear hatch lifters need replacement > > AC Needs recharging, blows cool but not cold. R12 he believes > > Cost Estimate for parts and labor repair $400-500 dollars > > Is the price for the repairs to high? > > Thanks Robert > NYC > > ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today! |
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