KDP jig bolt

[Six_Man_Diesel]

Is it a must that the bolt is countersunk??? And what about the shavings, should be caught by the filter right... . ??

 

[CWeidenkeller]

If you don't countersink the bolt, you will probably run into clearance problems trying to get the fan pulley back on. I didn't have air when I did mine, so I used a heavy grease on the drill bit and tap. Pulled them out every couple turns to clean the shavings off. Any chips that might have fell through were just aluminum, and I would expect the oil filter got 'em.

 

[SlyBones]

When I did mine I did the countersink first. No hole for shavings to get into at this point.



After seeing the jig and how it works, and how tight the tolerances were on those pieces, I didnt think it was a problem doing the countersink first. Normally I would think that doing the countersink first would give alignment problems and make it so the main hole was not drilled straight. That may be a problem when drilling by hand. Or at least make it harder. But with the jig it seems thats not a issue. You should be able to drill the countersink first, then drill the main hole and have it go right in, in the proper place, depth and all that. -- Worked for me.

 

[pwknapp]

Did mine last Sat. and with two psi can't see how any aluminum could have made it into the case. Chips were blowing out no problem. my . 02

 

[Six_Man_Diesel]

DId you countersink your bolt?? Has anyone done it without countersinking it?? CWeidenkeller said I may have clearance problems. What size, and how long of a bolt do I use?

 

[CWeidenkeller]

The bolt is a 1/4 -20 by 1". The jig I had came shipped with the 1/4-20 flathead hex screw. I wondered the same thing, and the bolts just happened to show up with the jig. It only takes the time to change bits and c/s the hole, so why not? Slapped a little loctite on it (also supplied) and buttoned it up.



BTW, in case you weren't aware, the jig comes with the drill, tap, and countersink. It's virtually impossible to screw it up a long as you lube everything and proceed at a reasonable pace... ...

 

[Six_Man_Diesel]

That sounds great, the package comes with everything. TDR members are a lifesaver, thanks again guys.