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49 Chrysler with no compression
I recently pulled my uncle's 1949 chrysler Royal out of storage. It
was sitting for 27 years in the garage... anyway, aside from the wiring being totally useless and in need of replacement, the only problem i have is the engine has no compression. I have put marvel mystery, motor oil, even a little gear oil down the cylinders, but no return of the compression. This has the flathead "spitfire" 6 cylinder engine. It spins over freely... way too freely. Anyone have a method i might not have considered? I'm willing to try a lot of things before i pull the engine from the car... i'm hoping to at least get it running before I have to do that. The thing only has 92,000 original miles on it. |
#2
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49 Chrysler with no compression
.... ?anyway, aside from the
> wiring being totally useless and in need of replacement, the only > problem i have is the engine has no compression. I have put marvel > mystery, motor oil, even a little gear oil down the cylinders, but no > return of the compression. NZA I had a 29 6 cylinder Chrysler like this. After determining that the oil pump was indeed pumping oil I took it out on a country road and gave it a long push. It did eventually start but burned oil like crazy for a long time. But I solved that problem too. Also maybe the timing chain is broken or skipping a lot. As for the wiring. There are places that will make you a new wiring harness. And if you do this strongly consider converting to 12 volts. Bob AZ |
#3
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49 Chrysler with no compression
On Jul 29, 2:26 am, Bob AZ > wrote:
> ... ?anyway, aside from the > > > wiring being totally useless and in need of replacement, the only > > problem i have is the engine has no compression. I have put marvel > > mystery, motor oil, even a little gear oil down the cylinders, but no > > return of the compression. > > NZA > > I had a 29 6 cylinder Chrysler like this. After determining that the > oil pump was indeed pumping oil I took it out on a country road and > gave it a long push. It did eventually start but burned oil like crazy > for a long time. But I solved that problem too. Also maybe the timing > chain is broken or skipping a lot. > > As for the wiring. There are places that will make you a new wiring > harness. And if you do this strongly consider converting to 12 volts. > > Bob AZ Well, I reckon if i'm going to try the push-start method, i need to make the brakes work again first.. LOL I ordered a new harness already. I decided to stick with 6 volts for now. That decision was made mainly because i already purchased an 8 volt battery to try it out (the regulator was 'turned up' to 8 volts years ago). From what i've been reading on the internet, the bigger wiring of the 6v harness will accomodate 12 volts easily, should i decide to go that route in the future. |
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49 Chrysler with no compression
Nza wrote:
> Well, I reckon if i'm going to try the push-start method, i need to > make the brakes work again first.. LOL SISSY!! Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x') |
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49 Chrysler with no compression
On Jul 29, 11:36 am, Bill Putney > wrote:
> Nza wrote: > > Well, I reckon if i'm going to try the push-start method, i need to > > make the brakes work again first.. LOL > > SISSY!! > LOL ! Hey, i just thought of something... this car has the Fluid Drive tranny, so do you think it will push start at all ? |
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49 Chrysler with no compression
On Sun, 29 Jul 2007 18:14:20 UTC, Nza > wrote:
> On Jul 29, 11:36 am, Bill Putney > wrote: > > Nza wrote: > > > Well, I reckon if i'm going to try the push-start method, i need to > > > make the brakes work again first.. LOL > > > > SISSY!! > > > > LOL ! > Hey, i just thought of something... this car has the Fluid Drive > tranny, so do you think it will push start at all ? Yes, I have done that with my 49 Windsor and 40 Royal. FluidDrive came in two different varieties, a regular 3 speed transmission with fluid drive, and the M4/M6 dual range fluid drive. -- "What do you mean there's no movie?" |
#7
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49 Chrysler with no compression
Nza wrote:
> The thing only has 92,000 original miles on it. Wouldn't that be considered a lot of mile between rebuilds for that vintage (materials and motor oils of the day)? Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x') |
#8
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49 Chrysler with no compression
On Jul 29, 10:21 am, Bill Putney > wrote:
> Nza wrote: > > The thing only has 92,000 original miles on it. > > Wouldn't that be considered a lot of mile between rebuilds for that > vintage (materials and motor oils of the day)? > > Bill Putney > (To reply by e-mail, replace the last letter of the alphabet in my > address with the letter 'x') I reckon it could be considered such. My dad said he drove the thing 750 miles right before he put it in storage for those 27 years and it ran pretty well. Obviously, "ran great when parked" doesn't really mean anything when the rings are stuck in the pistons.. |
#9
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49 Chrysler with no compression
Bill Putney wrote:
> Nza wrote: > >> The thing only has 92,000 original miles on it. > > > Wouldn't that be considered a lot of mile between rebuilds for that > vintage (materials and motor oils of the day)? My '49 Plymouth went about 120,000 miles before its first overhaul (which my granddad had done in 1964 for about $300- and the engine still runs today after that overhaul). It was still running at the time he decided to overhaul it- Mopar flaheads were a lot tougher than a number of contemporaries. The Chevy Stovebolt six was a crappy lawnmower engine by comparison (splash oiling whereas the Mopar had full pressure), and the Ford flathead v8s had a lot more problems with overheating and consequent damage. Its pretty darn hard to wear out a Mopar flathead from the 40s to the point where it just wont run anymore. So yes, it may be getting close to overhaul time, but its likely got a good bit of life left based purely on mileage- certainly enough to fire up and run. Sitting for 27 years probably did it more harm than the 92k miles, though. |
#10
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49 Chrysler with no compression
"Nza" > wrote in message oups.com... >I recently pulled my uncle's 1949 chrysler Royal out of storage. It > was sitting for 27 years in the garage... anyway, aside from the > wiring being totally useless and in need of replacement, the only > problem i have is the engine has no compression. I have put marvel > mystery, motor oil, even a little gear oil down the cylinders, but no > return of the compression. Lack of compression could be stuck valves, a rudimentry form of leakdown testing could be performed by positioning each cylinder to TDC on the firing stroke and injecting compressed air through the spark plug hole to check for the sourse of the leakage. Pressurized sump points to stuck rings, air escaping from the intake or exhaust indicates stuck valves. |
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