Packard Forum Index » Post-War (1946-54)

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Yeah, that won't be as easy as you think. Adapter kits for Packards are more expensive than fixing or finding the right tranny. Just mentioning because you said you were on a very tight budget (to the point of trying to find discounted rings.)

The knocking might be tranny related, but the smoke billowing out the exhaust can only be some kind of motor trouble. Good luck in tracking down the culprits, some things can be so frustrating to figure out. I've been there chasing ghosts of problems pulling your hair out.


Oh wait, i GUESS if a radiator had a breach and was mixing coolant and ATF AND the motor had a head gasket or other issue where it was burning coolant THEN you could have a motor making a ton of smoke AND a tranny acting up like crazy because of the antifreeze in the ATF. That's the ONLY way i can think of that both issues could be cause by the same problem.

Easy to tell, does the antifreeze in the radiator look like a milkshake or gray goo or mud? Does the tranny fluid look the same?


The knock may be a rod knock thats not too bad just manifesting itself under load or getting worse as you put a load on the engine (e.g. in gear.)


I'm assuming you have an automatic? I browsed through and didn't see anything saying one way or the other, and i don't know enough about 51 and up to know if they came both ways or just with one tranny on that car.

Well this is kind of embarrassing.... It turns out the "rod knock" was actually coming from the vacuum pump. My shop teacher and I put the electronic ear all over the engine, and as soon as we put it on the vacuum pump it was obvious. Is this a common occurrence?

I dropped the oil pan today, just to check things out. It appears that it was gone through probably in the 80s before it was parked. The bearings are all almost brand new -still well with factory specs, not even in the wear limit range. The cylinders are clean, very light scoring, but nothing that says "Machine me!" I still suspect it has a stuck or broken ring though, just due to the smoking. Everything is surprisingly clean in there though. Much more so then I suspected.

The crank has 327 cast into it. Does this mean the crank is from a 327? I was pretty sure the engine is a 288, but I suppose somebody have swapped in a bigger crank since apparently it was rebuilt at some point. I don't know how common it is to do that though.

Thanks everybody for all the help! I appreciate immensely.

Good news! I don't know if common would be the proper term but fuel pumps fail and do cause their share of aggravation.

If the engine number starts with a 2 them some one put a 327 crank and rods in the 288 block. If it starts with a 4 then you have a 327 block. It was OK to use a 288 head to raise the compression. A 6 at the start of the engine number would be a 356, good luck and don't for get to brake the glaze on the cylinder walls.

My alleged 2262 complete chassis has a number stamped on a pad on the left side of engine as G257109E. It begins with a "G", not a "2". What does that mean???? I'm not familiar with the streight 8 Packards. Just learning.

My alleged 2262 complete chassis has a number stamped on a pad on the left side of engine as G257109E. It begins with a "G", not a "2". What does that mean???? I'm not familiar with the streight 8 Packards. Just learning.



Courtesy of Kev's engine serial chart.packardinfo.com/xoops/html/downloads/PackardEngineSerials.pdf

22nd series 288 5 main, solid lifters Suffix E explained also.

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Thanks HH56. Hopefully i'll get this engine running in a month or two. It looks real good.

Keith the letter denotes the year. M is 1954, L is 1953, etc......

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Correct, except when a series spans more than one year, like the 22nd, which could be either 1948 or 1949. Otherwise, it is a straight-forward engine numbering system.

(o{I}o)

Hi Fory:

I've run into the smoking problem and it may just be that the motor needs to have a thermostat installed.

If it runs smooth and doesn't miss then put a thermostat in it.

The rings are probably a little sticky.

Nothing makes people more happy than finding out that the $7,000 motor job can be eliminated with a $15 thermostat.

Cheers