Project "Blown HD" my 6/8 drop/shortblock/heads/cam/blower/tranny install
12-27-2006, 12:55 PM
#871
Originally Posted by moregrip
just ordered a couple of $15 bolts 
M16 x 2.0 x 180mm
Stock damper bolt is approx 100mm long
Replacement bolt for Innovators West damper for a vette application (what I have) 130mm long
What I actually need is a bolt 180mm long! doh!
I upgraded to a 12.9 rated bolt and made sure this length bolt would contact all threads in the crank snout. (that was a nice 2 hour journey) 
M16 x 2.0 x 180mmStock damper bolt is approx 100mm long
Replacement bolt for Innovators West damper for a vette application (what I have) 130mm long
What I actually need is a bolt 180mm long! doh!
I upgraded to a 12.9 rated bolt and made sure this length bolt would contact all threads in the crank snout. (that was a nice 2 hour journey) 
upgraded to a 12.9
machined nylon to hold crank keyway in place when bolt is tightened (sandwiched), this is the correct length for vette applications, I'll need a different length for my truck application........
I'll be working on the fuel system and blower assembly today
12-27-2006, 01:18 PM
#872
Is that a custom beveled washer on your new bolt? Let us know what the nylon length winds up being. Are ya gonna feed this info back to Innovators West? With the keyway in place now what are your bolt torque plans?
I should have bought stock in ARP before the start of gripp's project
Very cool bro!
Bill
I should have bought stock in ARP before the start of gripp's project
Very cool bro!
Bill
12-27-2006, 02:10 PM
#873
Originally Posted by Bill Reid
Is that a custom beveled washer on your new bolt? Let us know what the nylon length winds up being. Are ya gonna feed this info back to Innovators West? With the keyway in place now what are your bolt torque plans?
I should have bought stock in ARP before the start of gripp's project
Very cool bro!
Bill
I should have bought stock in ARP before the start of gripp's project
Very cool bro!
Bill
From my measurements, what I came up with is distance from crank snout to balancer outer edge (where ECS's machined washer would flush too) is 65.2mm. the inner lip on the machined washer ECS provides is 3.2mm. so I would need a plastic spacer 62mm wide (16.5mm ID/36mm OD) to fill the gap
Last edited by moregrip; 12-27-2006 at 02:24 PM.
12-27-2006, 02:38 PM
#876
Originally Posted by Bill Reid
... and you calculated you'll have enough threads on the new bolt to fully seat and torque? I know its a dumb question... but I've made that mistake before
Bill
Bill
12-27-2006, 02:49 PM
#878
FYI: the beveled machined washer measures 9.5mm wide total, Large OD is 50mm, Large OD width is 6.3mm, Small OD is 36mm, Small OD width is 3.2mm, ID is 16.3mm. If I where going to machine a new washer I would go with a full 10mm of material and add that to the Large OD portion as there is currently only about 1.5mm gap from the end of the 180mm bolt to "butting up" against the back of the crank snout ID 
, oh yeah, and I'd get that sum bitch Zinc plated
, oh yeah, and I'd get that sum bitch Zinc plated
12-27-2006, 03:19 PM
#879
ok, I actually measured the room I had left before the bolt would bottom out, I'm at 2.642 mm of head room before the bolt would bottom; this needs to be enough for any final settling the crank gear/oil pump gear/crank damper may see PLUS torque to spec movement (still not determined)..........does that look like enough?
on a dial caliper that seems like alot of room to me..............
on a dial caliper that seems like alot of room to me..............
Last edited by moregrip; 12-27-2006 at 03:34 PM.