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racnod
J15 engine
#1
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2008/9/24 0:52
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Can anyone tell me the difference between a J15 and an A15 engine?

Posted on: 2008/9/24 12:49
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Dodgeman
Re: J15 engine
#2
No life (a.k.a. DattoMaster)
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A bit like night & day really, but if the small pushrod engine has an external aluminium oil pump, on the right side of the block near the front, driven by a horizontal shaft, then chances are that it's an A series engine.

If it looks like an Austin A40 engine, if it has a cast iron head, then it's probably a J series engine.

An examination of the engine number will reveal all. These two Datsun engines have the engine letter code & the engine capacity code as a prefix to the engine number.

Posted on: 2008/9/24 16:32
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racnod
Re: J15 engine
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Thanks Dodgeman

I was looking at the 3 j15s advertised on ebay. They look like A15s to me. Shows you how much I know

Cheers

racnod

Posted on: 2008/9/24 23:43
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D
Re: J15 engine
#4
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From under the Firmament LOL no twiglight effect BS
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austins and MG type A or J series like motors also have cast iron heads be careful as you dont want those boat anchors.

Posted on: 2008/9/25 0:52
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Pendles
Re: J15 engine
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have a look in my photos, there afew of different angles of a J15, the most obvious difference being the row of visible head studs along the side of the rocker cover(above the spark plugs).

Posted on: 2008/9/25 9:37
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Dodgeman
Re: J15 engine
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First engine.

Open in new window






















Second engine.

Open in new window






















Third engine.

Open in new window


























Posted on: 2008/9/25 11:30
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biggles
Re: J15 engine
#7
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these are my engines, definately j15's...

Posted on: 2008/9/26 10:59
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clyons8
Re: J15 engine
#8
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The flywheels look similar to the A10 ones, they look quite light to me.

Posted on: 2008/9/26 23:21
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