Converter Flexplate Gap
05-17-2014, 09:33 PM
#1
Converter Flexplate Gap I just installed my Yank SS3600 (stock flexplate) and the gap between the two is .234" (15/64). Do I need to add washers or is it safe to bolt up? Sorry, first converter install and there is some conflicting information about appropriate gap size.
05-17-2014, 10:54 PM
#2
Moderator
The proper gap is between 1/16" and 3/16" (.188). A little past .250 the converter will not fully engage into the pump.
So yes, add washers to reduce the gap. Best are matching spacers for this purpose. Personally, I start with a bunch of grade 8 washers and use calipers to find three within .001 of each other.
So yes, add washers to reduce the gap. Best are matching spacers for this purpose. Personally, I start with a bunch of grade 8 washers and use calipers to find three within .001 of each other.
05-18-2014, 07:33 AM
#3
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I've found that your average graded (meaning grade 8 or 10.9) washer from the auto parts store is about (.10) thick. So if you are at .23 now, one per bolt would reduce you down to .13 which would be perfect.
05-18-2014, 07:43 AM
#4
These guys are correct, also make sure to check bolt length. With a .100 shim you might want to upgrade to a longer bolt to make sure you get good thread engagement. I suggest a 10.9 grade for the best strength. Not to long though, you will bottom out before they tight up.
Chris
Chris
05-18-2014, 08:39 AM
#5
Thanks everyone for the advice! In regards to the bolts. I bought these ARP converter bolts but feel they are too short to use with shims. Would the stock ones be okay to use or should I get new bolts that are stock length plus the washer size?
Thanks again guys!
Thanks again guys!
05-18-2014, 07:49 PM
#6
Moderator
The ARP 230-7304 are only .590 long.
It does seem a bit short; if the stock ones are longer, I would use those.
However, I hope that Chris (Circle-D) will give you a definitive answer.
It does seem a bit short; if the stock ones are longer, I would use those.
However, I hope that Chris (Circle-D) will give you a definitive answer.
05-19-2014, 08:43 AM
#7
No definitive answer, but I would guess the OE bolts are to long. Thread the bolts into the converter by hand and measure how big the gap is before they tighten up. That will tell you which bolt you can use to get the most thread engagement. Hope this helps....
Chris
Chris
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05-19-2014, 02:33 PM
#8
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Get longer bolts, add in the threaded hole, washer and flexplate thickness, and cut to just a hair under your total measurement. They will be perfect that way.
