Trivia Question 8 - What is A ...... - 63/64 Cadillac Website2024-03-29T06:26:10Zhttps://6364cadillac.ning.com/forum/topics/trivia-question-8-what-is-a?feed=yes&xn_auth=noWith any engine service that…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1680722018-01-02T16:39:07.398ZJason Edgehttps://6364cadillac.ning.com/profile/jasonedge
<p>With any engine service that required removing the carb, it would have run just fine with or without the shim prior to drilling the idle spoil ports, and guess they felt it was being left out enough that they should force reinstallation of the shim by adding the spoil sport. Sounds like a brute force fix, but 54/55 years later we are still forced to install that shim if you want it to idle correctly with stock setup. </p>
<p><strong>I will also note: <br></br></strong> <strong>1st:</strong> it…</p>
<p>With any engine service that required removing the carb, it would have run just fine with or without the shim prior to drilling the idle spoil ports, and guess they felt it was being left out enough that they should force reinstallation of the shim by adding the spoil sport. Sounds like a brute force fix, but 54/55 years later we are still forced to install that shim if you want it to idle correctly with stock setup. </p>
<p><strong>I will also note: <br/></strong> <strong>1st:</strong> it has often been incorrectly surmised and stated that this shim was simply needed because of the design of the Carter AFB. The ports were actually added to the Carter Carb as a later adaption to the Carb, during late 1962 model year production, to force the entry of the shim, and not that the shim was added to address original design of the carb.<br/><strong><br/>2nd:</strong> it has also been incorrectly stated that the shim was simply a heat shield for the carb, however, it was to prevent long term corrosion from the exhaust gases. Heat is a factor, however, simply heating the base of the carb up is not going to make it corrode. It is the constant direct exposure of the hot exhaust gases over time that will make it corrode. </p> Interesting. Wonder how/why C…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1681822018-01-02T14:01:08.990Z24ro8f5mbs2jchttps://6364cadillac.ning.com/xn/detail/u_24ro8f5mbs2jc
<p>Interesting. Wonder how/why Cadillac came up with this solution? If the shim was fitted these holes would not be needed and the car came equipped from the factory with the shim. So how many cars had the shim removed to force Cadillac to do this modification? If this problem would have been on one car Cadillac would have done nothing. Same with ten or maybe even hundred. So that gets me thinking that a lot of owners and/or shops removed the shim. Why would they have done that?</p>
<p>Interesting. Wonder how/why Cadillac came up with this solution? If the shim was fitted these holes would not be needed and the car came equipped from the factory with the shim. So how many cars had the shim removed to force Cadillac to do this modification? If this problem would have been on one car Cadillac would have done nothing. Same with ten or maybe even hundred. So that gets me thinking that a lot of owners and/or shops removed the shim. Why would they have done that?</p> BINGO! Colin gets the Cigar!…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1683362018-01-02T12:54:57.817ZJason Edgehttps://6364cadillac.ning.com/profile/jasonedge
<p><strong>BINGO! Colin gets the Cigar!</strong> As noted in the October 1962 Serviceman Bulletin page 50, 2 idle spoil ports were drilled into the carb on late 1962 cars and all 1963 cars, to prevent the engine from idling if the stainless steel shim on the Carter carb is omitted. It goes on to note the shim is needed with the Carter Carb to prevent corrosion from exhaust gases. Here is a scan of the Serviceman entry:…</p>
<p></p>
<p><strong>BINGO! Colin gets the Cigar!</strong> As noted in the October 1962 Serviceman Bulletin page 50, 2 idle spoil ports were drilled into the carb on late 1962 cars and all 1963 cars, to prevent the engine from idling if the stainless steel shim on the Carter carb is omitted. It goes on to note the shim is needed with the Carter Carb to prevent corrosion from exhaust gases. Here is a scan of the Serviceman entry:</p>
<p><a href="http://storage.ning.com/topology/rest/1.0/file/get/2175952378?profile=original" target="_self"><img width="450" class="align-center" src="http://storage.ning.com/topology/rest/1.0/file/get/2175952378?profile=RESIZE_480x480"/></a></p> I seem to remember seeing som…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1680482018-01-02T04:16:01.304Z1ffoyvhfg8texhttps://6364cadillac.ning.com/xn/detail/u_1ffoyvhfg8tex
<p>I seem to remember seeing something about this years ago before swapping my carb for a Edelbrock.Something about two ports in the bottom of the carb that will not let the car idle correctly if the metal shim is not installed correctly ?!?!</p>
<p>I seem to remember seeing something about this years ago before swapping my carb for a Edelbrock.Something about two ports in the bottom of the carb that will not let the car idle correctly if the metal shim is not installed correctly ?!?!</p> You could be on to something…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1681502018-01-02T03:16:22.642ZJason Edgehttps://6364cadillac.ning.com/profile/jasonedge
<p>You could be on to something there.</p>
<p>You could be on to something there.</p> Ahhhhhh .......No!!!tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1681472018-01-02T03:14:29.586ZJason Edgehttps://6364cadillac.ning.com/profile/jasonedge
<p>Ahhhhhh .......No!!!</p>
<p>Ahhhhhh .......No!!!</p> It's mounted to the throttle…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1681432018-01-02T03:09:08.929Z2o93f8rdftyzjhttps://6364cadillac.ning.com/xn/detail/u_2o93f8rdftyzj
<p>It's mounted to the throttle linkage near the Carb and will only activate, if you really nail the throttle.</p>
<p>Because, every good wife, will be sipping "port" while hubby chauffeurs her around in a 63/64 Cadillac, these cars have a very, and I mean, very rare fitting attached to prevent the initial surge of power, to cause the wife to spill her port, thus "spoiling" her dress, or even worse, the upholstery.</p>
<p>It will activate and return the car to "idle" immediately.</p>
<p>Thus,…</p>
<p>It's mounted to the throttle linkage near the Carb and will only activate, if you really nail the throttle.</p>
<p>Because, every good wife, will be sipping "port" while hubby chauffeurs her around in a 63/64 Cadillac, these cars have a very, and I mean, very rare fitting attached to prevent the initial surge of power, to cause the wife to spill her port, thus "spoiling" her dress, or even worse, the upholstery.</p>
<p>It will activate and return the car to "idle" immediately.</p>
<p>Thus, they are called, the IDLE SPOIL PORT.</p>
<p>A very rare option on all of the peasant models, but standard equipment on the Fleetwood Sixty Special.</p>
<p>Some small portions of the above post, may contain large portions of bullshit too.</p> That's a toughie. don't know…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1683222018-01-02T03:08:07.800ZRobert Alan Shannonhttps://6364cadillac.ning.com/profile/RobertAlanShannon
<p>That's a toughie. don't know why you'd want to spoil your idle hmm</p>
<p>That's a toughie. don't know why you'd want to spoil your idle hmm</p> Robert, carb related but not…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1680432018-01-02T02:59:16.549ZJason Edgehttps://6364cadillac.ning.com/profile/jasonedge
<p>Robert, carb related but not AC or idle speed-up. Applies to both 63 & 64.</p>
<p>Robert, carb related but not AC or idle speed-up. Applies to both 63 & 64.</p> I'm guessing it's on the carb…tag:6364cadillac.ning.com,2018-01-02:6543066:Comment:1683192018-01-02T02:24:24.167ZRobert Alan Shannonhttps://6364cadillac.ning.com/profile/RobertAlanShannon
<p>I'm guessing it's on the carb & has something to do with the A/C ; cause the idle speeds up when A/C is turned on.(?) I don't remember reading about this, is this a '64 only trick question?</p>
<p>I'm guessing it's on the carb & has something to do with the A/C ; cause the idle speeds up when A/C is turned on.(?) I don't remember reading about this, is this a '64 only trick question?</p>