So after a long night of looking up how to use Heli-Coils and the differences between Heli-Coil and Time Sert Thread Repair Kits, I decided to look up prices for replacement blocks and/or new engines all together. Powerland is extinct I think. Only offering the 390 which is out of stock. Northern Tool has a $229 420cc with free in-store pickup.
So I figured I'd take a look at what I've done.....
I was going to back out the bolts, but I only had my Torque Wrench. ARC Video taught me to only use the Torque wrench in 1 direction.
So I set it back to 30 ft lbs and turned that sumnaB til it said CLICK!!!!!!!!
Then I repeated on the other 3 bolts.
Then 40 ft lbs.
Then 45 ft lbs.
I'm not sure what happened between 20 and 30 ft lbs, but it happened on every bolt. Maybe something with the washer?? I don't know and am no longer concerned.
I need to mount the engine before I try to torque any more,
IF I try to torque any more. I don't think I'm comfortable with a 130 lb girl sitting on my engine while I press on the exhaust and pull the wrench. My exhaust might get hurt.
If I could dance, I probably would. LOL
https://www.youtube.com/watch?v=jDOFseZA-iI
---------- Post added at 01:38 PM ---------- Previous post was at 01:28 PM ----------
Carnage pictures please! Did you Loctite red the end of the studs in the block and let it set up before you tried tightening them?
Denny
I guess there will be no carnage photos after all

---------- Post added at 01:48 PM ---------- Previous post was at 01:38 PM ----------
I'm thinking it was a lube issue. I always use arp lube with arp bolts. I've seen wheel studs pulled in two at 100ft/lbs when anti seized up real good.
I thought about getting the recommended ARP Lube and then thought any lube would be as good. I hate being sold extra stuff I don't need and am a skeptic. I went with antiseize because I felt the 54 ft lbs was high already. I normally just use motor oil with stock bolts.
---------- Post added at 02:28 PM ---------- Previous post was at 01:48 PM ----------
Can't find the valve lash specs in the PD420 manual.
I'll use what I saw in the Predator 420cc manual.
Intake 0.10 - 0.15mm
Exhaust 0.15mm - 0.20mm
So I'll try 0.004" Intake
and also 0.006" Exhaust