0 or 1 Crank code for backlash measurement

[BartdeBruijn]

Hi,

While measuring backlash I found the codes on my case, on my intermediate shaft gear but I can not find the 1 or 0 on my crank gear……

Anyone can give me a clue where to find it!?

Merry Christmas!
Cheers,
Bart

[gled49]

Mix and match crank and intermediate shaft gears to get results, sometimes “0” intermediate shaft gear works best in “1” case. Sometimes gears aren’t marked.

[BartdeBruijn]

Thans for quick reply!
For sure I do not see these ‘writen’ numbers….
Was expecting a similar indention like in case and aluminium intermediate shaft gear.

The tolerances are depending on the coding of the three, will see now if I end somewhere inthe middle ;-)

[Locker537]

From my limited experience, the crank gear is generally not marked. The engine case is marked.

Case is marked. IMS gear is marked.

Bentley manual has a mix and match table.

[targa72e]

Mix and match gear chart referenced above.




john

[BartdeBruijn]

Thank you gents!

So not knowing what the crank gear code is I will aim for 0.03-0.042 to be safe.

Cheers,
Bart

[Henry Schmidt]

When considering the intermediate gear backlash the crank gear is generally a non-issue.
The crank and crank gear are precision machined to a much closer tolerance the the case.
Check you backlash keeping in mind that when a magnesium case heats, the inconsistent expansion provides for ever changing clearances.

The 964 gears are numbered/matched because the gears are both steel and prone to high harmonic vibrations. They match the gears on a machine that checks vibration at operating speeds.

[BartdeBruijn]

Thanks Henry!
Always good if someone put things back in perspective ��