What I thought about doing that would be super for an efi car was to use a V-belt drive off the rear axle for a vacuum pump. Probably be too complicated and not worth the effort, but it would work! -- Mark Price Morgantown, WV 1969 AMC Rambler, 4.0L, EFI, T-5 " I was different before people dared to be different" -------------- Original message ---------------------- From: Matt Haas <mhaas@xxxxxxx> > The dual action pumps aren't all that bad. They can still be had for > about $90 (same price I paid for one 10 years ago) or you can have them > rebuilt for about the same amount. You can also get rebuild kits for the > pumps if you want to tackle the job yourself. I haven't had to deal with > a bad vacuum motor yet. The one on my wagon is original, the one on my > 68 was in a bag of them that came with the car so I know nothing about > it's history. > > Matt > > Frank Swygert wrote: > > You hit the nail on the head Matt! When everything in a vacuum wiper system is > up to snuff, it works great! Not as noisy as electrics either. But few people > replace the motors and pumps due to overall cost. After finding an electric > system and taking the time to install it I'm pretty sure the vac system is > cheaper. The vac motor should last another 20+ years, especially since rebuilds > use a synthetic grease that doesn't dry out and harden like the old stuff does. > > > > The fuel pump vacuum booster is another story. Those fuel pumps are getting > expensive too. Still, replacing both the fuel/booster pump and vac wiper motor > together isn't going to be much more than an electric setup, especially > considering installation time. > > > > If you use an electric or non-booster mechanical pump the wipers need a bit of > help during periods of low engine vacuum. A storage cannister is the easiest way > to do this. You will only have 20-30 seconds of boost from a cannister, but > that's usually enough to get you around a vehicle you're passing or up a hill. > The wipers may still slow, but shouldn't slow much. If the wiper motor is new > (or recently so) there should be little noticeable difference, just as Matt > pointed out with the stock system in good working order. > > > > If the motor is 20+ years old just break down and get a new rebuild! The only > time an electric conversion may make economic and safety sense is if the car > will be driven in all kinds of weather -- a true daily driver like mine! > > > > --------------- > > Date: Mon, 05 Nov 2007 20:34:04 -0500 > > From: Matt Haas <mhaas@xxxxxxx> > > > > One thing I do want to mention is that with a motor that makes good > > vacuum, a good booster pump, and a good wiper motor, the wiper speed > > difference going up hill (or accelerating from a low speed with the gas > > pedal mashed down) is very, very small. It's hardly noticeable on either > > of my Americans. It's slightly more noticeable on the wagon since it has > > a 199 and an automatic but it's hardly worth doing anything with. > > > > Matt > > > > -- > mhaas@xxxxxxx > Cincinnati, OH > http://www.mattsoldcars.com > 1967 Rambler American wagon > 1968 Rambler American sedan > ================================================================= > According to a February 2003 survey of Internet holdouts released > by UCLA's Center for Communication Policy, people cite > not having a computer as the No. 1 reason they won't go online. > > _______________________________________________ > Amc-list mailing list > Amc-list@xxxxxxxxxxxx > http://www.amc-list.com/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list