Re: Engine very sticky
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Forum Ambassador
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I'd be interested in what others think too. Is the Super 8 a post 40 356 or earlier? Packard had issues with sticking valves on the 356 due to rusted stems and guides.
I know there was a fellow on the forum a year or two ago that had started a car after a long sit. He had a running car then shut it off and parked it for a few days. Tried to start again and had no luck. His engine turned over but he had no compression in several cylinders. When he pulled the head to check and then do the valves some of them were stuck so badly that it took brute force to remove them. I believe several here blamed the situation on varnish buildup from using some old rotten gas that was still in the car. Apparently that sticking valve issue and old gas has happened more than once. I suppose it is possible one or two valves stuck long ago and not being able to raise now could cause your problem. As far as turning the engine by hand, I don't think I have ever been able to do that as some have said it is possible to do by grabbing the fan or belt. Have been able to use a breaker bar on the crankshaft nut or a prybar in the flywheel teeth though. Your bolted on lever sounds as if it should provide plenty of force though.
Posted on: 2017/5/11 18:39
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Howard
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Re: Engine very sticky
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Home away from home
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Good Afternoon...Many of us use a 50-50 mixture of Automatic Transmission fluid and Acetone...it will break things loose a bit quicker. There are other products on the market that are also more powerful than what you are using...Basically, don't force it, soak it. Be patient with the old girl. Ernie
Posted on: 2017/5/11 18:41
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Caretaker of the 1949-288 Deluxe Touring Sedan
'Miss Prudence' and the 1931 Model A Ford Tudor 'Miss Princess' |
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Re: Engine very sticky
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Home away from home
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Hi all, Appreciate your responses. The engine is a 385. I don't think it was run with old gas because the mechanic had disconnected the fuel line from the tank (it still is) and run the car from a portable gas can. It might be the rings have detached from the cylinder walls but are still corrosion-bound and/or not flexing in their grooves. I'll try the acetone/ATF method. If anyone else has an idea, please shoot it this way! Thanks.
Posted on: 2017/5/11 19:24
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Rob
1930 Custom 8 Club Sedan |
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Re: Engine very sticky
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Forum Ambassador
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WD-40 is really a very poor choice, it's for dispersing water and really has no useful properties when it comes to rust. Kroil and PB Blaster are the traditional choices for loosening rust.
Of course you should be able to turn the engine over by hand, for years the 385 engine came with a hand crank for emergency use. Not saying it's easy with the plugs in, quite easy with them out.
Posted on: 2017/5/11 19:48
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Re: Engine very sticky
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Forum Ambassador
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To check if the valves are moving or not, remove the cover from the side of the block and observe if any are stuck as you do your turns. Have you tried turning the engine back the other way? You could observe valve action by marking the valve stems when you do that.
Posted on: 2017/5/11 19:50
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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: Engine very sticky
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Home away from home
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Owen D, you are right. Turns out the vaunted WD-40 is not a good rust dissolver, merely a preventative. Thanks for the tip. I just put 50-50 acetone/ATF down the cylinders. That is supposed to be the strongest of all, or so they say.
Posted on: 2017/5/11 20:05
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Rob
1930 Custom 8 Club Sedan |
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Re: Engine very sticky
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Home away from home
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Oz, I shall try that if, after giving the acetone/ATF mix a good shot at it, there is still untoward resistance.
Posted on: 2017/5/11 20:08
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Rob
1930 Custom 8 Club Sedan |
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Re: Engine very sticky
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Home away from home
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I would be very careful with those stuck valves: If you force them by rotating the engine you could easily damage the roller followers. The cam profile will generate a huge force well beyond what the followers were meant to transmit.
Might be good to take the valve covers off and work the valves loose with a punch and some Blaster.
Posted on: 2017/5/12 5:14
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Re: Engine very sticky
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Forum Ambassador
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Just adding emphasis to Ross' point about damaging the cam follower arm and roller, seen the results of this several times. If in fact the problem is frozen valves, don't try to free them by rotating the engine!
Posted on: 2017/5/12 8:13
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