Author Topic: Internally Balanced Crankshaft?  (Read 7344 times)

April 30, 2026, 04:53:52 am

1.6Lmarine

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Internally Balanced Crankshaft?
« on: April 30, 2026, 04:53:52 am »
Good Morning,

Just a quick question today.

Is the crankshaft on a 1.6L TDI ME from a 1987 Jetta internally balanced?

Thanks so much!

Craig

Reply #1May 14, 2026, 10:02:39 pm

fatmobile

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Re: Internally Balanced Crankshaft?
« Reply #1 on: May 14, 2026, 10:02:39 pm »
I am not sure what that means.
 It is balanced.
Tornado red, '91 Golf 4 door,
with a re-ringed, '84 quantum, turbo diesel, MD block

Reply #2May 15, 2026, 01:38:43 am

VWSmokr

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Re: Internally Balanced Crankshaft?
« Reply #2 on: May 15, 2026, 01:38:43 am »
In 1987, VW Jetta was not offered with any TDI engines, only IDI. However, it seems that you may be asking if, for a Jetta TD engine, an EXTERNAL (weighted & indicated as to position) damper or flywheel is needed to achieve a balanced reciprocating assembly (as is common on many Detroit-built domestics). AFAIK... No. They are all supposed to have the INTERNAL components balanced together. OTOH a $erious performance assembly, especially one intended for high rpm service, could include any damper/pulley, as well as the flywheel & clutch assembly in the balancing process.
J.R.
SoCal