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What is this Gray Marine engine?

Old Marine Engine » Gray Marine Gas Engines - 4, 6, and 8 cylinder » What is this Gray Marine engine? « Previous Next »

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MichaelRidout
Visitor
Posted on Thursday, May 05, 2005 - 06:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I just bought a Gray Marine 4 cylinder on Ebay, but the owner doesn't know what it is and I don't either. If you can tell by looking at pictures, could someone go to Ebay #4545610681 and tell me what they think it is. Also it does not have a carb on it. Would it be a Zenith M63 or a Carter BB-1

Mick Ridout
m.ridout@worldnet.att.net
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andrew
Moderator
Username: andrew

Post Number: 1142
Registered: 11-2001


Posted on Thursday, May 05, 2005 - 08:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Here is the link.

Mick: I guess there is no nameplate on the engine... or information the cover of the transmission?
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gannet
New member
Username: gannet

Post Number: 1
Registered: 04-2005
Posted on Friday, May 06, 2005 - 06:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Mick
It looks like a 4-162 to me. Both of those carbs will fit. I
guess it depends on how fast you want to go.
Doug B.
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MichaelRidout
Visitor
Posted on Friday, May 06, 2005 - 10:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

As far as I know there is no nameplate on the engine and I cannot see anything on the tranny. Mind you I am only looking at the pics just like you. I will not see the engine in the flesh for at least a week. If it is indeed a 4-162, what would the specs be including rpm's, what years would it have been made and about how much horsepower would it have with either of the two carbs?

Mick Ridout
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MichaelRidout
Visitor
Posted on Friday, May 06, 2005 - 10:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Also, my boat plans which are from 1924 call for a Gray Marine Model "Z" or similar up to 50 HP and 600 lbs. What are the specs for a Model "Z". I can't find any references to it anywhere.

Mick Ridout
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larry_from_maryland
Senior Member
Username: larry_from_maryland

Post Number: 227
Registered: 07-2003
Posted on Friday, May 06, 2005 - 12:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I agree it looks like a continential.You should be able to find CWC and F00 3u as casting marks.In tractors they were listed as 32hp @ 1800rpm.In other places you see much higher numbers like 60hp @ 3600 rpm.Grey used this engine in differant series with differant rpm's.
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gannet
New member
Username: gannet

Post Number: 2
Registered: 04-2005
Posted on Saturday, May 07, 2005 - 08:52 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I believe Graymarine used this continental block from roughly the late 30's to the early 60's or whenever they went out of buisness. The Whole Gray range was based on several basic blocks that were offered in Lugger, Fireball, Phantom, etc. state of tune. The Lugger 162 would make 42hp @ 1800; while the Phantom would make 75 @ 3600. My research( based on replacement part numbers) indicates that the only differences between the models were in carburation, exhaust manifold and ignition, not in the basic block. I have seen references to a racing model that makes 95 hp @ 4000 rpm. The 162 in my sailboat loafs along at 1600 and makes around 22hp based on fuel usage. Hope this helps

Doug
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Kim Perkins
Visitor
Posted on Wednesday, July 20, 2005 - 01:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I also have had some difficulty finding out what engine I have. I have a Gray Marine diesel engine package on a mount. The brass information plate is in great shape, so I know the following info: Model no. 4D157, engine no. F7402.

I need a shop manual for this marine engine package. What make of engine is it? Other than the fact that its a 4 stroke per cycle diesel engine, I am in the dark here. Its got the marine reduction gear and it runs, but has an oil gallery problem resulting in crankcase oil getting into the fuel injection pump after a minute of normal running.

Please help me with information or direct me to someone who can.

Kim
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larry_from_maryland
Senior Member
Username: larry_from_maryland

Post Number: 247
Registered: 07-2003
Posted on Wednesday, July 20, 2005 - 05:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

4D157 is allso a continential diesel number.Alot of the old diesel injector pumps had parts of them lubbed by engine oil.I could probably find out which pump you have with some more looking later.The 2 oils are seperated by seals and it depends which side has the higher preasure when the seal goes bad as to which way the it flows.On farm engines the fuel useally goes into the oil.
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Kim Perkins
Visitor
Posted on Thursday, August 04, 2005 - 04:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Continental GD157 dsl engine (GD157A500 is stamped in starboard side of engine block): The fuel injection pump is American Bosch PSB4A-70FH-5349A1, spd 600/2000, serial no. 7D20418, ? no. 157F244.

The problem is: Crankcase oil enters the fuel tank after a short period of good running, then the engine runs rough.

Need specific diagnostic advice.

Kim
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larry_from_maryland
Senior Member
Username: larry_from_maryland

Post Number: 251
Registered: 07-2003
Posted on Thursday, August 04, 2005 - 05:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have service manuel that covers that pump well(its 25 pages just on the pump)And have one machine left with one of them on.I have never come across that problem myself.I will have to look in the book.Allso have 2 shows this weekend so i can't say when i can post back.
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larry_from_maryland
Senior Member
Username: larry_from_maryland

Post Number: 253
Registered: 07-2003
Posted on Friday, August 05, 2005 - 04:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Well the manuel was no help at all.It shows how to do everything on the pump,but your problem is NOT discused at all.
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Kim
Visitor
Posted on Monday, August 08, 2005 - 02:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Larry:

Thank you for looking for the pump problem/fix. I ordered a Continental GD157 Service manual. If its the manual I need, maybe this specific problem is discussed in it.

Otherwise, if upon looking at the pump manual you come up with an idea on where exactly the oil mixing would likely occur, please post it here.

Kim
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yselmeer
New member
Username: yselmeer

Post Number: 1
Registered: 08-2005
Posted on Thursday, August 25, 2005 - 05:00 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Looking for left & right Gray Marine 50 HP 6 cylinder lugger engine with hydrollic gears, gasoline. In excellentt working order.
OR
Replacement gearbox (left turning or anticlockwise) + cylinder head for Gray Marine 100 HP 1959 gasoline engine.
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yselmeer
New member
Username: yselmeer

Post Number: 2
Registered: 08-2005
Posted on Thursday, August 25, 2005 - 05:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Looking for left & right Gray Marine 50 HP 6 cylinder lugger engine with hydrollic gears, gasoline. In excellent working order.
OR
Replacement gearbox (left turning or anticlockwise) + cylinder head for Gray Marine 100 HP 1959 gasoline engine.

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