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Date:         Sat, 18 Aug 2001 16:08:42 -0400
Reply-To:     Vanagon Man <puzerewski@MSN.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Vanagon Man <puzerewski@MSN.COM>
Subject:      Re: Miscellaneous Aircooler Questions
Comments: To: Chgolynch@AOL.COM

Volks, Please do not bash me for the small stuff in my reply to this post........there are a million different answers.

> I have an '80 2.0L motor which needs a new crank (flywheel and fan fell off), cam (lugged to death), and a cylinder head (thermostat failed, cooked the #2-4 side). I'm planning to use a set of OEM Koblenschmidt 914 2.0L pistons for a bit more power, and if I have to buy a new head, I may as well buy ones with bigger valves. The van has a/c, and I'd like to be able to use it on the highway and still be able to pass cars. :)

2.0 liter pistons and cylinders are 2.0 liter pistons and cylinders.......Porshe, Mahle whomever.........it is the crank and higherquality of the other parts of the porshe engine that gave it more power and ability to handle higher rpms. Also, the Porshe's were set to a much higher compression ratio giving more power. You would easily overheat your motor with the same CR's. Put your money in the heads!!! Call Boston bob and send him a good set of rebuildable heads cost a lot but he automatically installs the big valves in them and stands by his work. Now you will have the best of both worlds, and will not have to give up your heat. > > Question #1: > I understand that the 1.8L and 2.0L aircooled bus motors were fairly similar except on the stroke and valve size. Local VW guys claim the 1.8L had bigger valves, but that those heads would have to be bored to accept 2.0L cylinders. What's the straight dope on this?

Main problem would be that the 1.8 has round ports and the 2.0 has square...thus you would have to use j tubes adn eliminate the heat eschangers, or put on type 2 heat exchangers for exhaust purposes...........the cylinders are the exact same in diameter, just shorter in length. > > Question #2: > The cam is toast, due to excessive lugging by one of the PO's. I'd like to keep it hydraulic. Are there any mild street cams out there that can work with the 914 pistons and 1.8L heads?

Webcam makes something, but your Heads MUST be done right. Once again the pistons and cylinders have nothing to do with this. > > Question #3: > The van has an excellent a/c unit, hoses are in good order, etc. However, the compressor is AWOL, as are the mounting brackets. I noticed the motor has a small pulley behind the fan, and the cooling tin is distorted to accomidate a compressor. Supposedly, Bus Depot sells rotary compressor conversions for the older York-equipped vans. Does this include all the hardware I'll need to put a compressor in, and where does the belt go?

I have ordered said kit going on 2 months ago and have yet to recieve it! I did get the compressor, though. Sanden sd-5

> I don't see anywhere on the tin where it could get from that small pulley out to where the compressor would mount.

the belt goes to an idler pulley which in turn has another belt that turned the compressor. My guess is that with the sanden this setup is eliminated. > Thanks! > > Sean L. > > '86 GL "Blitzen" > '83 GL "Belle" > '82 GL Diesel "Donder" > '80 "First Lady" > > All siebensitzers! :) >


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