Re: [Amc-list] vacuum wipers

[Jim Blair <carnuck@xxxxxxxxxxx>]

I put 2 hoses to my '66 IH motor (one to intake and another to ported vacuum) and ran them to a vacuum ball with check valves in the lines. That gave me vacuum at idle and rev!

Jim Blair, Lynnwood, WA '87 Comanche, '83 Jeep J10, '84 Jeep J10

From: Tom Jennings 
Subject: Re: [Amc-list] vacuum wipers
To: "AMC/Rambler owners, drivers and fans." 
Message-ID: 
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
 
Victor the Cleaner wrote:
> It's been many years since I last attempted to mess with them, 
> so perhaps it's time to survey the collected wisdom.
> 
> First of all, what sort of vacuum should I be measuring on the
> fuel pump's wiper port?
 
Should be manifold worst case, with a good booster pump, I'd guess(*) 
around 16 - 20 InHg all the time.
 
(*) The TSM has a hilariously vague spec that says something like 
'sufficient' in it. It assumes you are fully conversant with the physics 
of the thing. We got a good guffaw out of that about a year ago.
 
 
> Second, how best to perk up a groggy wiper motor? 
 
Peter Stathes? Mac McCoy? rebuild them about $100/pop. I've done 
quickies on mine, OK if they're not too far gone. Complete disassembly, 
clean and lube. Vaseline is about right.
 
Everyone complains about them, but I like them better than electrics. 
Most of the complaints, as I see it, are based on the behavior of 40 - 
50 year old units which are of course worn out. Rebuilt or rejuvenated 
they're fine. You do have to have a booster pump else accelleration 
means no wiping. I've lived with that on my Classic for 20 years (I'm an 
idiot).

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