Crankshaft Woodruff Key Differences
12-22-2019, 06:37 PM
#1
Rennlist Member
Thread Starter
Crankshaft Woodruff Key Differences
While assembling my stroker I noticed the woodruff key on the GTS crank did not set as proud as an S4 crank I have.
S4 woodruff key on left GTS woodruff key on right
According to my parts PDF the 87 and GTS woodruff key part numbers are the same.
The S4 woodruff key is thicker, too.
S4 woodruff key on left GTS woodruff key on right
According to my parts PDF the 87 and GTS woodruff key part numbers are the same.
The S4 woodruff key is thicker, too.
12-22-2019, 07:25 PM
#2
could just be differences in manufacturing. Measure the key.I had to clean mine up with some sandpaper, and make sure there are not any burs. measure the with and the height of the key and compare to the damper. Also make sure the tolerances on the OD of the crank and the ID of the balancer are within tolerances. several threads on this.
12-22-2019, 07:51 PM
#3
Rennlist Member
Thread Starter
Here's another view.
Way different.
Way different.
12-23-2019, 12:24 PM
#4
Rennlist Member
Thread Starter
Ended up using the correct woodruff key. I was worried about the possibility of shearing the woodruff key with the stroker.
You can see the difference in the depth as evidenced by the gap between the key and the crankshaft gear.
First the smaller key
Second the larger key
You can see the difference in the depth as evidenced by the gap between the key and the crankshaft gear.
First the smaller key
Second the larger key
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dzaprev (12-23-2019)