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Re: Mal's '41 120 Coupe
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Home away from home
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Oh, and that 'switch' is a switch, either mercury or ball roller switch. Here is a site that might get you started on finding a replacement:
allproducts.com/ee/oncque/01-tilt_switch.html Cheers, Tom
Posted on: 2008/9/5 7:59
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Re: Mal's '41 120 Coupe
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Forum Ambassador
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My 56 trunk lite had cartridge a lot like yours with a ball that was oxidized and rusty but as 34PackardR said, mercury could well have been used also. You may be able to take yours apart and clean but if mercury, then maybe not a good idea these days--don't know how you would tell by just looking.
The company I daylight for uses the ball type which are a continual source of intermittent issues. If the reference link 34Pack supplied doesn't work out, another option is a glass enclosed mercury switch such as the Philmore brand shown. Over here they are available at almost any electronic supply store. What I do is either take our switch apart, remove the ball, and solder the glass switch in or just put the glass one in parallel on outside--depends on application. Don't know if your cartridge is big enough for former but maybe an option.
Posted on: 2008/9/5 11:57
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Re: Mal's '41 120 Coupe
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Forum Ambassador
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A common error when doing brake relining on cars with the trunnion block, at least the ones with 2-shoe brakes thru 1936, is to use the same brake lining width on all four wheels. If you check your specifications you'll see that the left-front wheel used a narrower lining, 1/2 inch narrower on the Eights and Super Eights and 5/8 inch narrower on the Twelves (data for 1934).
EDIT: Yes, of course I should have picked up on it. If the car is RHD then the trunnion is on the right side and that side then I presume has the narrower brake lining.
Posted on: 2008/9/5 12:15
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Re: Mal's '41 120 Coupe
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Forum Ambassador
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Quote:
Tom, Yesterday, Wade did mention it's called a trunnion block but I couldn't recall the term so left it out of my narrative, thanks for the background to it's development and usage. On Kevin's '35 it is on the right front spring probably because it is a RHD car. Tom and Howard, I think I've found a supplier of switches closer to home, Dick Smith Electronics, an Aussie electronics chain see link.search.dse.com.au/search?w=tilt+switch&x=0&y=0&asug=&sessionid=48c1980600806e82273fc0a87e01069f&ts=new Quote:
And Dave, I had noticed the difference in brake lining size in some research for other matters and was curious as to why, now I know! To all you guys - A BIG
Posted on: 2008/9/5 16:16
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Mal
/o[]o\ ==== Bowral, Southern Highlands of NSW, Australia "Out of chaos comes order" - Nietzsche. 1938 Eight Touring Sedan - SOLD 1941 One-Twenty Club Coupe - SOLD 1948 Super Eight Limo, chassis RHD - SOLD 1950 Eight Touring Sedan - SOLD What's this? Put your Packard in the Packard Vehicle Registry! Here's how! Any questions - PM or email me at ozstatman@gmail.com |
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Re: Mal's '41 120 Coupe
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Forum Ambassador
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Was sure you would find something close. The mercury switch looks about the same we have here and rating looks good. The rolling ball looks marginal. If you choose that one, would suggest checking how many mA your lamp draws at 6V. The 20mA rating of switch isn't very much.
Posted on: 2008/9/5 17:43
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Re: Mal's '41 120 Coupe
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Home away from home
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Trunnion Block.
Referring to Tom's comment that the trunnion block was introduced on the 1930 7th Series cars. At the risk of being picky, the trunnion block was introduced on the 1929 6th Series. According to the Turnquist book it can also be found on some late 443 Series (1928). Turnquist also says that it was invented by a Frenchman and the right to its exclusive use was purchased by Packard. The trunnion block is on the LHS of both of my 6th Series cars, they are both RHD. David
Posted on: 2008/9/5 20:47
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Re: Mal's '41 120 Coupe
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Quote:
David, I don't think Wade's '34 has a Trunnion Block either side but I'll check next week when I'm back in the workshop.
Posted on: 2008/9/5 23:42
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Mal
/o[]o\ ==== Bowral, Southern Highlands of NSW, Australia "Out of chaos comes order" - Nietzsche. 1938 Eight Touring Sedan - SOLD 1941 One-Twenty Club Coupe - SOLD 1948 Super Eight Limo, chassis RHD - SOLD 1950 Eight Touring Sedan - SOLD What's this? Put your Packard in the Packard Vehicle Registry! Here's how! Any questions - PM or email me at ozstatman@gmail.com |
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Re: Mal's '41 120 Coupe
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Forum Ambassador
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The trunnion block is on the LHS of both of my 6th Series cars, they are both RHD.
David Thanks Dave for that observation. I guessed (perhaps incorrectly) that the trunnion would be on the steering side. But a last question, were your 6th series cars built as RHD at Detroit for export, or were they converted locally? I think the answer to that would conclude the question.
Posted on: 2008/9/6 8:40
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Re: Mal's '41 120 Coupe
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Home away from home
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David,
Thanks for the correction on the series number. My memory failed me, and it was the 6th, not the 7th series where it first appeared. My source (the Kimes book) seems to indicate that it was a Packard development: "A happy accident had seen to the adoption of the 'loose trunnion' mount for the rear end of the left front spring. During testing, one of the cars seemed to be free of wheel fight and shimmy when others were not, over the same test road. Examination showed that the left front spring rear mount was loose. This led to the design of a rocker mount held in place by four short compression springs, ..." Anyone know of any other source to corroborate either version of events? Tom
Posted on: 2008/9/6 12:22
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