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Chrysler. Crowns…history lesson…a...

Old Marine Engine » Multi Cylinder Gas Inboards » Chrysler. Crowns…history lesson…a little primer… por favour? « Previous Next »

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pk4
New member
Username: pk4

Post Number: 1
Registered: 08-2008
Posted on Friday, August 29, 2008 - 10:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I’m restoring a 1935 CC 19ft runabout, originally outfitted with a Crown (# 6a 1783 6a (6’s maybe “G’s”))as per paper work. That’s long gone and I would like refit it a Crown of some sort but know nothing about them.

I have seen references to all sorts of model numbers and model years and would like learn what they correspond to (hp, displacement, # of carb, etc) .Can any one enlighten me a bit or point me in the right direction for info?

Regards. PK
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larry_from_maryland
Senior Member
Username: larry_from_maryland

Post Number: 311
Registered: 07-2003


Posted on Saturday, August 30, 2008 - 09:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Chrysler #6 engine 230 ci, 63hp @ 1800rpm, this from a 1946 book. The same ci engines were upgraded and came out with larger model numbers higher compresion ratios and more hp.
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pk4
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Username: pk4

Post Number: 2
Registered: 08-2008
Posted on Saturday, August 30, 2008 - 11:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

THanks Larry,

That motor won't be missed, No wonder someone replaced it with a Herc.


I wonder if the later crowns with more resonable hp look enough (or can be made) to look like the early ones.

Regards, PK
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miro
Senior Member
Username: miro

Post Number: 343
Registered: 11-2001


Posted on Monday, September 01, 2008 - 08:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Not so fast pk4
That's 63 hp at 1800 rpm.
In today's terms where engines are rated at 4500 rpm, the hp would be about 160 .
For a 19 ft runabout 1935 vintage that's about right. You won't get up on a plane but I suspect it never was designed to do that.
I get a lot of fun out of going real slow and just cruising along.
If you want to have a fast boat, get a tupperware boat or a jetski.
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pk4
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Username: pk4

Post Number: 3
Registered: 08-2008
Posted on Tuesday, September 02, 2008 - 03:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Personally I look forward putting around the bay down here, listening to s big six burbling away. Tying up here and there for a coffee. Drifting along pecking at my laptop…

With that said, I also used to love water skiing, would like to start again and if I’m going to have a boat…why not make it as flexible as possible while retaining it’s mid century charm.

I take Issue with your hp calculations, My car is rated at 270 @ it’s 6700 redline. That’s the way it’s old. Same with my other cars and same with every “write up” I’ve seen;;; hp at redline, not 4500 .Hp calculation requires something like a fixed load from idle to readline.

I have learned that the basic crown puts out 95 hp at it’s readline of around 3100 rpms. The herc redlines around 2100 rpms where it hits its max hp. At 4500, Both engines would be throw parts into orbit .

Why not get a jet ski? I like the look, style, romance and functionality old runabouts.

Regards, PK.
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bruce
Senior Member
Username: bruce

Post Number: 182
Registered: 07-2002
Posted on Tuesday, September 02, 2008 - 10:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Bob Speltz Real Runabouts Volume II; Page 180 lists the 1935 CC 19' Runabout with either a Chrysler Ace-PC rated at 70 HP turning a 12X 14 prop(CC PN#7526). Also listed is the Chrysler Crown-CA rated at 92 HP turning a 12x14 Prop(CC PN# 7526).Not listed for the 19" but available in the 22" runabout is the (exceedingly rare engine)125Hp Chrysler Imperial-LM for 1935 turning a 15x14 prop PN# 7514.
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pk4
Member
Username: pk4

Post Number: 4
Registered: 08-2008
Posted on Wednesday, September 03, 2008 - 01:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks, that’s some very interesting information. Through some cross referencing, my motor appears to have been a 95 hp.

Regards, PK
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Drrot
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Posted on Wednesday, September 03, 2008 - 08:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Most likely you had a CA they were produced from 5/2/34-3/9/36 there were 555 units produced. 93HP@3200RPM Serial numbers were from 1301-1855
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pk4
Member
Username: pk4

Post Number: 5
Registered: 08-2008
Posted on Wednesday, September 03, 2008 - 07:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks

Well, my paper work says "6a 1783 6a" (":6" could be anything that resembles it). So that would Identify it as being th the range.

But a number on the block of engine I removed is 40381. At some time I through I had identified it as a Hercules.

Regardless, It's rusted throough so I have to find a crown. (Or a K if I find out what its about)

Regards, PK
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pk4
Member
Username: pk4

Post Number: 6
Registered: 08-2008
Posted on Wednesday, September 03, 2008 - 09:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I take that # back. It was on the block. On the manifold it's LC 8311. that rings a bell as it being a garden variety Herc.

So now I need a crown.

Regards, PK
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Drrot
Visitor
Posted on Thursday, September 04, 2008 - 06:34 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Can you post a photo? "Generally" Chryslers have rectangular tappet covers where Hercules are rounded on the ends. The LC 8311 on the manifold, is it cast in or on a brass tag?
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pk4
Member
Username: pk4

Post Number: 7
Registered: 08-2008
Posted on Thursday, September 04, 2008 - 02:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I think mine are round but I'll take a look & maybe a pic. Right noew it's sort off covered with ivy. The outdor bench I made colapsed

Regards, PK

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