Here is the 48 Super Eight engine specs from Service Counselor Vol21 #11 dated June 15, 47. All planned mechanical specs for the vehicle as introduced are found in that issue which can be downloaded from the literature archive. A later issue, Vol21 #19 also has specifications which could reflect any changes to pre introduction specs.




A 48 wiring diagram can be found in the literature archive too but here is an excerpt showing the distributor cap and approximately where # 1 plug wire would be if the distributor is installed per spec. Distributor rotates counter-clockwise.

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You are correct. I should not have said that as an absolute fact. I will say I have not seen the type with a bolt as shown in the photo in common use but agree dealers could have installed any number of variations. Very possibly there are more like yours and the photo and even some different still. Have even seen some with round knobs instead of the straight bar.

You might verify with Napa if this BK 6601418 item has the correct specs. Napa did not have this listing when I bought my valve several years ago. Specs says 3/8 with 5/8 hose and it does have an angled outlet.

You might send a PM to Mathew Rattray in Australia and see what he uses as a player. He has made several of the YouTube items. Not sure how often he gets on the forum anymore to pick up a PM but if he doesn't respond reasonably fast maybe you could also ask if Mal (Ozstatman) or one of the other Australian members could get him a message. I know some of the old talking or instructional records of the time used a speed of around 16 rpm which many of the record players made in the 50s could do.

My comments about how the extra rear bulb is needed are strictly referring to how the factory chose to do the original turn signal option. You specified the "proper switch" and I agree. If you want to get an aftermarket turn signal setup absolutely the same bulb can be used and many people made add on turn signal switches starting in the 40s and still do. Some of them even had a mechanical cancelling function like yours using the roller against the wheel to operate a mechanism inside the enclosure similar to the factory original setup but most did not. A couple of units made today look a bit like the older switches but both then and now all the aftermarket setups needed different wiring than stock. To use the same bulb requires modifications to the original circuit to be made and there doesn't seem to be a standard circuit with the same colors working for all. Once the aftermarket setups are installed, unless their wiring diagrams are still available to see what was done trying to use the original factory wiring diagrams in tracing a problem will be of little use.

The heater shutoff valves Packard used over the years seemed to all have a twist handle to turn it off. Wonder if the original valve somehow got damaged. Perhaps someone tried to adapt something else or the bolt was used to plug or repair the broken valve. If you cannot get it to turn and shut the flow off new universal shutoff valves can be found at many parts stores. They don't have the angled outlet to raise the hose higher over the manifold though. The threaded end for port in head is 3/8 NPT and outlet would be for 5/8 hose. If you want to replace the valve you could also get a 3/8 male to 3/8 female adapter fitting to raise the valve another inch and better get hose above the manifold.

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They definitely can if you have the proper items and circuitry before the bulbs to separate the functions but without separate switches or a multi function single switch like Packard waited until the 23rd series to use -- or maybe blocking diodes in some type arrangement to steer one of the signals when the other is needed -- I don't see how they could in the rear prior to 49. Selenium diodes were all that was available then and those were large, bulky and fairly expensive so I doubt if they would have been used. Again, the cheapest and least disruptive to what was already used or was common to other models without signals was a second bulb in the optional turn signal equipped cars.

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Don, From what I can see in the wiring diagrams not quite the case until the 23rd series. I cannot see any evidence of rear factory turn signal wires in 41 diagrams but they do show the ready to use wired fronts. For 42 in the 20th series all models diagram they do show a factory T. S. install on a senior car and it is the same as Clippers thru 47. The 48 22nd series with the exception of the panel indicator is the same. 42-7 had R & L indicators while 48s only had a single indicator bulb.

All prewar thru 48 cars with tail and brake light housings on both sides had the dual contact bulbs wired the same --small and large filaments in parallel each fed from a single switch and power wire. With the basic 3 wire switch for turn signals, because the large filaments in the tail light bulbs were already in parallel and used for the brake lights, the two functions could not be easily separated or shared because as soon as brake were applied and lights were on, the bulbs would not turn off when flashing was needed. An extra bulb was added in the rear to accommodate the turn signal.

Adding an LED bulb would not be an issue for the brake and tail light but like the other models I suspect a 6v electronic flasher would be the easiest option when adding them for turn signals. Downside to changing the flasher is the original mounting method and terminals would need to be changed for the new flasher. It appears LEDLight.com has the bulbs and flasher needed including the 1129 single contact rear bulb.

Here is the basic turn signal, brake and tail light circuits used thru 48. The main difference is in the indicator lights. 42-7 used two indicators and as the Clipper extraction shows those are handled differently than the single bulb in 48. I suspect if turn signals were added to 40 or 41 models they would have had a different tail light housing for the second bulb and probably ran a couple of extra wires or loom under the car much like the reverse light option. No idea how they handled the dash indictor but there might have been a spot in the 41 dash overlay to add one.

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  42-7 Clipper turn signal extraction.jpg (153.64 KB)

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If this is the car where the original parking light bulb and location inside the enclosure was converted to accommodate turn signals I am curious how those bulbs are able to be seen or how mounting was done and still let you have a sealed beam conversion. Are your sealed beams the original type 7" diameter bulb used in that era which fills the entire surface of the housing?

Has anyone with the two bulb tail light housings which use the separate turn signal bulb switched to LEDs? If so was it a noticeable improvement? 41-2 conventional and the Clipper based cars thru 22nd series used this two bulb arrangement. While the single LED bulb in the 23rd series housing doing both functions is quite nice, am curious on earlier cars with the dual bulbs if the turn signal flashing above the brake light could still be seen very well if the much brighter brake light was on. With incandescent bulbs the turn signal is visible in daylight but IMO, a bit weak.

The photo is of a Clipper thru 22nd series car with the horizontal split housing and shared lens.