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

My 49 288 didn't have a thermostat, so I'm putting one in. Which way does it install? Does the thermostat spring/round barrel face the block or the radiator?

Believe the thermostat sensing capsule is in the head or the side toward the engine so the hot water can act upon it.

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this should help

I've installed so many but i always triple check.

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The issue is do you have the sleeve(retainer)? If it is there a little bit difficult to get out. Find the gap and work from there carefully

i believe the jr. housing uses a spring, if u need one i have an extra. dell

Thanks everyone for help! My housing has a wire clip to secure the thermostat.

Orv

Howard, your reply has two images, one is an exploded view of the parts involved. This image looks like it is for a 356 engine. If so, it does not show a stud for the front of the housing, just a bolt is shown. Does this mean that only bolts were used and not the the bolt and stud as discussed in another thread? Just curious.

(o{}o)

I don't know. The plate is labeled 22-3 and typical of 24-54th series.

Believe O_D mentioned seeing the studs on prewar engines but didn't remember them postwar. At least one member did have a stud on his postwar yet several did not.

I was wondering how much the radiator hose angled on the conventional body prewars -- if as much as it does postwar. If it went more in line or directly over the hole then I could see a stud. Clippers angle significantly off to the side so not really a need.

Howard, seems Packard would have had a good reason for the stud and bolt to fasten the thermostat housing to the cylinder head. I wonder what Joe's '40 Super 8 Convertible Sedan has? No wait, his car got converted to a junior engine. A minor curiosity.

(o{}o)

As mentioned in the previous thread-my 47 has a bolt and a stud. I was a bit surprised by the stud.