[AT] 430V update

[Spencer Yost]

The old timers swear by boiling carbs, using something acidic instead of water if there is rust.   Lemon juice definitely works but requires a rinse boil to get the sugars off of it.  Preferably two rinse boils.   So it's time consuming.

If rust isn't a problem I just dip them in my  NAPA carb dip.   If it is I will dip them per normal(430V carb is in the can now) and then do the boil after getting as much carb dip reside off as I can.

One thing I have noticed by boiling. You know that thin, fine grained scale/sediment that is like concrete in the bottom of the bowl that the dip never really gets out? Boiling will get that.

Spencer Yost

> On Jan 23, 2018, at 10:02 AM, Gunnells, Brad R <brad-gunnells at uiowa.edu> wrote:
> 
> Yeah that's a nice feeling when everthing comes apart without stripping or breaking something.
> 
> 
> What is the lemon juice boil? I've never heard of that trick.
> 
> 
> Brad
> 
> ________________________________
> From: at-bounces at lists.antique-tractor.com <at-bounces at lists.antique-tractor.com> on behalf of Spencer Yost <yostsw at atis.net>
> Sent: Monday, January 22, 2018 8:34:29 PM
> To: at at lists.antique-tractor.com
> Subject: [AT] 430V update
> 
> The carb rebuild has started.   I was clearly right in that somebody has been in the carburetor recently. There's a rebuild kit in it, but a couple of important components were not replaced. The throttle bushing was old and probably was a little looser than I had thought. One jet was not seated all of the way, and the float clearly is not adjusted correctly.  Also the water leak that froze the cylinder also put some water in the carburetor.  So there was some rust in two passages, partially clogging  them.
> 
> I may have to do a lemon juice boil for the rust.   It was reasonably localized and minor so we'll see after I soak it and hand twist a drill bit in the passages.   I fortunately have drill bits the exact correct size.
> 
> PS. All the jets (and all the parts for that matter)came out easily.  A first for me. (-;
> 
> Spencer Yost
> 
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