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9724VF350 06-16-2017 08:13 AM

Cummins Carillo rods
 
Anyone tried drilling the tops of them to get some oil to the wristpin? Seems like it would be a good idea. Getting ready to put a set in and thinking about poking a hole in the top of them first.

9724VF350 06-16-2017 08:55 AM

Quote:

Originally Posted by blackmega3500 (Post 2622936)
I thought clearancing them on a 6.7 was a must for this reason. Thought it was something like .4 or .04 can't remember.

I think what you're referring to is on the cap end for oil flow. I plan on doing that for sure. .040 off each side of the cap should do it.

Blueboy 06-18-2017 10:09 AM

Most people are taking .015 off a side.
I took .020 off a side.

OZARK FOGGER 06-18-2017 11:55 AM

Does D&J do this on their rods? I've asked different people including some pullers and they think I'm wrong about milling the cap sides.

9724VF350 06-18-2017 05:00 PM

Yes they do. Not the entire side of the cap, but there is a spot machined for oil to get away.

Highwayman 06-18-2017 05:01 PM

In reference to the original question, some people drill (EDM maybe?) a galley down the length of the rod to lube the pin. That's the route I'd look into

9724VF350 06-18-2017 05:03 PM

That would be my preference, but the web in these rods is not thick enough for me to feel comfortable doing that.

Highwayman 06-18-2017 05:21 PM

True. Too late to trade up to a set from D&J or wagler? I think they both drill theirs

zstroken 06-18-2017 05:43 PM

Quote:

Originally Posted by 9724VF350 (Post 2623152)
That would be my preference, but the web in these rods is not thick enough for me to feel comfortable doing that.

very little strength is gotten from the "center " of beam.

Pudge 06-18-2017 06:14 PM

I've seen several sets that have two holes drilled on the top for such a purpose, probably about a 45° angle from centerline on either side. I think that would be a pretty easy maneuver for a hobby machinist/farmer to pull off

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Cflanery88 06-19-2017 12:39 AM

I ordered .080 longer Wagler rods a couple months ago and still haven't seen them yet. But reasoning I went for them is they do have a lube hole in the wrist pin end and caps come already clearanced.

LAmiller 06-19-2017 06:16 AM

D&J's X beam rod is drilled through the center from the rod bearing to the wrist pin to "pressure lube" the wrist pin. This is a lot different then just drilling a hole in the cap.

Lavon

Cflanery88 06-19-2017 07:23 AM

D&J's rods I think are the best design no doubt.

OZARK FOGGER 07-01-2017 02:03 PM

Quote:

Originally Posted by 9724VF350 (Post 2623150)
Yes they do. Not the entire side of the cap, but there is a spot machined for oil to get away.

What I meant to ask is if anyone knows if D&J machines the Carillo caps for oil shedding?

DieseLife 08-30-2017 02:32 PM

On the rod cap machining for oil to escape, are you guys doing .020 on each side or one side only? Would it be better to do more on one side versus both sides?

Sanger 08-31-2017 11:47 AM

Quote:

Originally Posted by 9724VF350 (Post 2622934)
Anyone tried drilling the tops of them to get some oil to the wristpin? Seems like it would be a good idea. Getting ready to put a set in and thinking about poking a hole in the top of them first.

The last set of CR Carrillo rods I installed had 2 holes at the wrist pin side, at about 45 degrees from the top.

OZARK FOGGER 08-31-2017 06:33 PM

I'm going with D&J. Their rods and pin oiling along with their forged piston are too good to pass up.

ctdthrasher 01-09-2018 10:01 AM

Bringing this one back. My Carrillo’s (.080” longer) have a heavy 45 degree chamfer cut into them. Taking .050 per wouldn’t even get rid of the chamfer so is relieving necessary? Is this a new design thing on their end?

ComnRailPwr 01-13-2018 07:41 PM

Mine have the same chamfer and wondered this as well.


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