Originally Posted by
grizz1
Well, you can't argue with that.
The guy who owns the show should know whats going on (hopefully
).
We were told different, but it seems there was some confusion on this subject. You have to believe what the guy at the top says is correct.
I will bake up a little serving of humble pie for dessert tonight
Thanks for sorting that out Trey.
Just as a footnote: With the Govarossi motor, we tried a 21-0600 rod on the Nova crank, but it was a little sloppy (worn crank pin maybe we thought). We tried a 28-0600 rod and it was a real nice fit ?? Just a difference in tolerances between batches maybe? I don't really wanna know. End of debate as far as I'm concerned, but I will still be keeping the older 28-0600 rods in stock just in case the big guy got misinformed too
As Previously Mentioned the Rod and Crank tolerance change was made during the Gen 5 phase of engine build. The Part number remained the same till the Gen 5.5 was released then the same rod was changed in part number. So there is no need for Humble Pie , the information that was given is correct.
The fact that you tried a 21-0600 and found it was sloppy means its a larger diameter than the original 28-0600 illustrating my point , id say the rod you had was before the tolerance change , the way to tell other than measiuring it is to look at the bottom yoke and lightening groove , the 28-0600 the groove dosent square off or it may have no groove at all , the newer ones with larger bottom yoke does.
NOW realise that the 28-0600 is still in production but its been relegated the number of the RTR Rod , its not meant to be in the GX or MG range of engines. . It shares the new dimensions changed in the range of rods and crank pins.
I hope this clears things up.
Cheers MM