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Author Topic: Differences between JR and CY, JX, KY diesel engines  (Read 3373 times)

November 03, 2020, 01:18:07 am

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Differences between JR and CY, JX, KY diesel engines
« on: November 03, 2020, 01:18:07 am »
Does anybody know what are the differences between a JR engine and CS, JX, KY engines? Mostly in terms of internal tolerances for rebuilding. Or any JR manual?
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Reply #1November 03, 2020, 10:07:43 am

fatmobile

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Re: Differences between JR and CY, JX, KY diesel engines
« Reply #1 on: November 03, 2020, 10:07:43 am »
Well the KY block was used for the 1.7 engine.
 For a vanagon or something.
 The pistons will work with 1.6 block/crank/rods pistons.
 But you'll have to bore it to around 80mm.

 Did you mean CY?
 I heard those were in the Rabbit 1.6 turbo diesels.

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Tornado red, '91 Golf 4 door, with M-TDI 12mm pump, south bend clutch, VNT-15 turbo, 02A trany
MK4s: 2000 TDI jetta, 2003 TDI wagon, 2000 golf 2.0 gasser.
'84 Rabbit with 1.7TD KY block pistons bored to 80mm, VNT-15
'84 GTI with stock 1.6TD starion intercooler.
Reply #2November 03, 2020, 04:18:40 pm

libbydiesel

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Re: Differences between JR and CY, JX, KY diesel engines
« Reply #2 on: November 03, 2020, 04:18:40 pm »
CS is the non-turbo 1.6 Vanagon engine code. 

JR is 1.6TD Rabbit/Golf (Same as MF)

JX is 1.6TD Vanagon.

KY is 1.7 non-turbo Vanagon. 

If your engine is JR engine code, then I would recommend getting the Mk1 Bentley.  Make sure it goes through '84.
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