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Is This an Acadia?

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David Eric Lees MD
New member
Username: bobthedog

Post Number: 1
Registered: 08-2017
Posted on Friday, August 11, 2017 - 11:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I was recently asked to help with the restoration of this antique marine motor. There are no markings on it, but I believe it to be an Acadia two-stroke, three port, dome head monobloc jump start engine. It still has the original vaporizer, water pump and Essex oiler, but most of ignition timing mechanism is missing. I would appreciate any thoughts?Old Acadia One-Lunger?
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Ned Lloyd
Senior Member
Username: ned_l

Post Number: 146
Registered: 08-2012
Posted on Friday, August 11, 2017 - 09:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I don't know what it is, but I don't think it is an Acadia. (At least it looks to have just about nothing in common with my 5hp Acadia.)
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Ernie
Senior Member
Username: ernie

Post Number: 2397
Registered: 01-2002


Posted on Saturday, August 12, 2017 - 07:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I agree with Ned
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J.B. Castagnos
Senior Member
Username: jb_castagnos

Post Number: 1321
Registered: 07-2002


Posted on Saturday, August 12, 2017 - 10:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

All of the Acadia engines I've seen were ignitor fired, did they make a jump spark engine?
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Ernie
Senior Member
Username: ernie

Post Number: 2398
Registered: 01-2002


Posted on Sunday, August 13, 2017 - 07:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Yes Acadia did make jump spark engines. They were rated at an additional 1 HP. I had the remains of a 4 HP years ago. I still have the Acadia rotary timer.
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Bruce Hall
Senior Member
Username: bruce

Post Number: 613
Registered: 07-2002
Posted on Sunday, August 13, 2017 - 08:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

not saying Acadia but the flywheel is the same..
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Ernie
Senior Member
Username: ernie

Post Number: 2399
Registered: 01-2002


Posted on Monday, August 14, 2017 - 07:45 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

My best guess is Rochester from Rochester,NY
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David Eric Lees MD
New member
Username: bobthedog

Post Number: 2
Registered: 08-2017
Posted on Tuesday, August 15, 2017 - 10:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks to all for their assistance in determining the provenance of this motor. I do know that it was in use in the Canadian maritime provinces where Acadia was popular engine. One mechanic thought it was an Acadia because of the flywheel design. I have uploaded a side view of the motor in the hopes it may provide more clues.Side View of Acadia(?) Motor
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jamie hurry
Senior Member
Username: primetrucks

Post Number: 69
Registered: 03-2004
Posted on Tuesday, August 15, 2017 - 01:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

looks like a grasser marine engine
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David Eric Lees MD
New member
Username: bobthedog

Post Number: 3
Registered: 08-2017
Posted on Tuesday, August 15, 2017 - 03:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Two additional facts may help in identification. (1) It doesn't have a carburetor, bur rather a vaporizer wherein fuel flow regulated by a needle valve and a one-way valve controls air intake. (2) What remains of the timing mechanism is a fiber disk (approx. 3" diameter and 1" thick.) attached to the crankshaft behind the flywheel. The fiber disk has a brass insert that makes contact with a stationary spring-loaded brush once on each revolution. The mechanism for advancing/retarding spark, however, has been lost.
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Scott Noseworthy
Senior Member
Username: scott_n

Post Number: 299
Registered: 02-2008
Posted on Wednesday, August 16, 2017 - 08:16 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I call that a mixing valve
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Bruce Goss
Member
Username: bruce_g

Post Number: 19
Registered: 12-2009
Posted on Wednesday, August 16, 2017 - 10:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I do not think this is an Acadia. Acadia pumps are on the front of the engine and there is no recess around the sparkplug. Bruce
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miro forest
Senior Member
Username: miro

Post Number: 917
Registered: 11-2001


Posted on Friday, August 18, 2017 - 08:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Speaking of that spark plug, it looks as if it can be repaired.
It's not common to see the priming cup integrated with the spark plug.
The upper hex can be unscrewed and the ceramic body should come out.
With some luck, you should be able to find a replacement ceramic and put it all back together.

miro
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David Eric Lees MD
Member
Username: bobthedog

Post Number: 5
Registered: 08-2017
Posted on Friday, August 18, 2017 - 05:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

The spark plug is a Champion #34, which has dual electrodes at the tip. It is no longer available. The top was missing, but it was otherwise OK, so I MIG welded about 1 " of 3/16 threaded rod to tip. A strong spark is present when connected to a "buzz box". An Autolite 3095 is the modern suggested replacement. I tried it, but it doesn't work as well as the #34 in the reconditioned motor. (see attached photo).

The picture may be misleading, as the priming cup is to the side of the dome head at the very top and not integrated with the spark plug.

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