according to Bentley: compression pressure: 145-190psi wear limit: 116psi max permissible difference between all four cyl: 44psi If your numbers are right, this motor is very tired and in need of a rebuild. factor this into your offer. ----- Original Message ----- From: Gary Shea <shea@GTSDESIGN.COM> To: <vanagon@GERRY.VANAGON.COM> Sent: September 1, 1999 12:13 PM Subject: compression ratios for '87 WBX
> Hi folks, I'm looking at buying an '87 vanagon, I took it to a > local emissions-o-matic joint and it failed with high hydrocarbons > (337 vs max allowable of 220) at idle. CO is fairly high too (1.00 of > max allowable of 1.20), which means they can't easily be rebalanced > using the idle air control on the air box (or at least that's > my understanding). > > The idle is a bit rough, not too bad though. The owner has gone > over the plugs/wires, distributor cap/rotor, O2 sender, and compression. > Timing has not been checked yet. Compression was 120,120,120,110. > Since I have more air-cooled experience than WBX experience, I > don't know how to interpret these numbers. > > Anybody care to tell me what to expect with the WBX engine? This > one has 170k or so. No head leaks at the moment ;) > > Gary > > ----------------------------------------------------------------- > Gary Shea shea@xmission.com > Salt Lake City http://www.xmission.com/~shea > |
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