Re: [Amc-list] windshield squirter location on an American (now vacuum storage for wipers)

[Matt Haas <mhaas@xxxxxxx>]

The hot rod type parts places sell vacuum pumps but I have no idea if 
they can  handle the volume you'd need for a constantly running wiper motor.

Matt

Wrambler242@xxxxxxxxxxx wrote:
> 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
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-- 
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.

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