Oil Priming the 340

[Bodyperson]

Mikes geometry correction. PRW shafts and roller tip rockers. It leaked really bad under the shims to start with. I started freaking out thinking I was suffering from the dreaded Speed Master Pedestal problem. They are actually PROMAXX heads. I loosened the shafts and clock the shafts better to eliminate exposure of the oiling holes There is a lot of tolerance there. Probably an eight of inch of rotation. Okay , got that fixed but now I have some significant leakage under some of the retaining bolt washers. I'm thinking some bigger washers may take care of this as the retainer holes have been chamfered a bit to relieve stress. I will be contacting Mike in the AM so no need to tag him.

So here is the question. I am hammering this engine hard with the oil pump, 70 pounds of high volume oil constantly to the head. Am I simply over powering it's ability to contain the oil? There is a lot of oil flowing out of those shaft bushings. Once I marked the balancer to the location of the camshaft oiling holes, on the engine stand, I was able to rotate the engine enough on the stand to pound the oil to it without worry of spilling.

 

[Oldmanmopar]

Sounds like you have shafts for 3/8 bolts and your using 5/16 bolts.You should not be able to rotate the shafts. Get the correct shafts and shims for your application?

 

[gzig5]

Did you have to offset slot the holes in the shafts to get the shaft to the needed position with the shims?
I'm interested what Mike says. I have the exact same combo and I need to get my shim kit.

 

[4spdragtop]

Pretty sure shafts on our 340 didn't rotate/adjust at all.
Post pics of your setup.

 

[Bodyperson]

Left a message with Mike. Ya the bolt holes are slotted for the relocation.

 

[Newbomb Turk]

Left a message with Mike. Ya the bolt holes are slotted for the relocation.

View attachment 1716479633

Then you have it correct.

How much correction did you need? I just redid my garbage and I needed only about a .125 correction.

My shafts are slotted for more correction than that.

Once the bolts are torqued down you should be fine.

Edit: I forgot to ask if you are using full time oil to the rockers or if you are oiling the rockers the factory way?

If you are somehow getting full time oil to the rockers you will need to get a restrictor somewhere in the system.

I always use a set screw in the hole under the rocker shaft. For full time oiling with needle bearings on the rocker shaft I use a .060 hole in the restrictor. It takes very little oil to line needle bearings.

For your rockers with bushings or a plain aluminum rocker I use .080-.090 for flat tappet stuff and for roller cam engines I use a .125ish hole in the restrictor somewhere.

I use more oil for roller cam stuff because the valve speeds (and consequently the spring speeds) are much higher with a roller cam. The extra oil cools the springs and the springs will live longer.

If you are using OE Chrysler oiling don’t sweat it. It is a self restricting system so the engine will have significantly less oil at the rockers when it’s running than when you are on the drill motor with all the feed holes lined up.

 

[Bodyperson]

Then you have it correct.

How much correction did you need? I just redid my garbage and I needed only about a .125 correction.

My shafts are slotted for more correction than that.

Once the bolts are torqued down you should be fine.

Edit: I forgot to ask if you are using full time oil to the rockers or if you are oiling the rockers the factory way?

If you are somehow getting full time oil to the rockers you will need to get a restrictor somewhere in the system.

I always use a set screw in the hole under the rocker shaft. For full time oiling with needle bearings on the rocker shaft I use a .060 hole in the restrictor. It takes very little oil to line needle bearings.

For your rockers with bushings or a plain aluminum rocker I use .080-.090 for flat tappet stuff and for roller cam engines I use a .125ish hole in the restrictor somewhere.

I use more oil for roller cam stuff because the valve speeds (and consequently the spring speeds) are much higher with a roller cam. The extra oil cools the springs and the springs will live longer.

If you are using OE Chrysler oiling don’t sweat it. It is a self restricting system so the engine will have significantly less oil at the rockers when it’s running than when you are on the drill motor with all the feed holes lined up.

Yup that's exactly what Mike said. I'm just really hammering that hole with oil in a static condition. Kind of what I thought too. AND it's the las 2 bolts that are leaking a little. Not a lot. Makes sense as that is where the pressure is building up. No full time oiling, stock oiling other than the pump. My correction is .090. Mike said .125 is the maximum he can do with the kit. What a wealth of knowledge that nice man has.