Author Topic: Rod length of 1.2l tdi ?  (Read 7677 times)

Reply #15April 16, 2012, 02:15:28 pm

R.O.R-2.0

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Re: Rod length of 1.2l tdi ?
« Reply #15 on: April 16, 2012, 02:15:28 pm »
Some 1.9 diesel engine conrod specs.

1Y IDI NA = 150mm long, gud pin 24mm
AAZ IDI TD = 144mm long, gud pin 26mm
1Z TDI = 144mm long, gud pin 26mm

I investigated a longer conrod rod for the petrol engines a while back. Here is some more info on CGTI.
http://www.clubgti.com/forum/showthread.php?t=222440

ABA has 159mm length, and a 22mm wrist pin.

how come the diesels have SHORTER RODS than the mk3 2.0 ABA?
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #16April 16, 2012, 02:26:59 pm

billybobf

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Re: Rod length of 1.2l tdi ?
« Reply #16 on: April 16, 2012, 02:26:59 pm »
probably shorter rods for a longer stroke but keeping the same deck height?

Reply #17April 16, 2012, 02:30:03 pm

R.O.R-2.0

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Re: Rod length of 1.2l tdi ?
« Reply #17 on: April 16, 2012, 02:30:03 pm »
probably shorter rods for a longer stroke but keeping the same deck height?

dur de dur..

your right..

the TDI has a 95.5mm crank, not 90mm like the ABA.
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #18April 16, 2012, 04:05:10 pm

danster

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Re: Rod length of 1.2l tdi ?
« Reply #18 on: April 16, 2012, 04:05:10 pm »
Different rod lengths and pin sizes for for the 1Y and AAZ are probably down to the turbo pistons being more substantial to cope with boost.

ABA like the other 1984cc 82.5 x 92.8 gasser tall blocks (ABF 16v and 2E, AGG, ADY 8v) use a 159mm long rod and a 21mm pin.

Most of the gasser short blocks including 1595cc 81 x 77.4mm, 1781cc 81 x 86.4mm and 1984cc 82.5 x 92.8mm use a 144mm long rod with a 20mm pin. Some 1781cc 20vTs use a 144mm rod with a 19mm pin.

Earlier engines use a smaller bigend / crankpin journal.

Reply #19January 09, 2013, 02:31:18 am

JRD

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Re: Rod length of 1.2l tdi ?
« Reply #19 on: January 09, 2013, 02:31:18 am »
Does anyone got more information about this rod length?

Reply #20January 09, 2013, 10:26:33 am

theman53

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Re: Rod length of 1.2l tdi ?
« Reply #20 on: January 09, 2013, 10:26:33 am »
Nope

Reply #21January 10, 2013, 04:36:48 pm

danster

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Re: Rod length of 1.2l tdi ?
« Reply #21 on: January 10, 2013, 04:36:48 pm »
My local garage just replaced a 3 cylinder TDI engine in a Polo. It looks like a shorter PD engine judging by the cam cover.
Apparently it had been run with a duff injector that eventually filled the sump with diesel till it went runaway and boom.
If the old engine does not need to go back as an exchange I will try to grab it for dissection.

Reply #22January 13, 2013, 04:06:24 pm

snakemaster

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Re: Rod length of 1.2l tdi ?
« Reply #22 on: January 13, 2013, 04:06:24 pm »
My local garage just replaced a 3 cylinder TDI engine in a Polo. It looks like a shorter PD engine judging by the cam cover.
Apparently it had been run with a duff injector that eventually filled the sump with diesel till it went runaway and boom.
If the old engine does not need to go back as an exchange I will try to grab it for dissection.

thats the 1.4 PD tdi , as you said looks like a cut down 1.9 , had the chance of a 1.4 tdi engine a good one to ,then looked at it and its a pd you can keep that junk .
Glenmorangie  single highland malt

Reply #23February 13, 2013, 02:05:52 pm

UnderPSI

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Re: Rod length of 1.2l tdi ?
« Reply #23 on: February 13, 2013, 02:05:52 pm »
There is a 1.5 idi that's has been converted to a tdi with all factory vw parts.
Suzuki Samurai 1.6

Reply #24June 26, 2013, 02:32:01 am

JRD

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Re: Rod length of 1.2l tdi ?
« Reply #24 on: June 26, 2013, 02:32:01 am »
There is a 1.5 idi that's has been converted to a tdi with all factory vw parts.

Can we have more information on these conversion?