IDT Premier or Ultra Oiling problems?

Iam having a engine built and was told that he had to do some oiling mods. I havent heard of any oiling issues with these blocks .Any ideal what these may be?
Thanks

Chevy Guy doing the Building????

dfree383 wrote:Chevy Guy doing the Building????

x2?

must be....

The only mods on those blocks would involve the size and location of the lifter gallery restrictor. Otherwise they are a great piece off the shelf.

dkp

halt them mods . could end up with more problems . your paying for the problem if the shop screws up, then there is the possible legal battle . find out what the shop plans are and come back here with them .

dfree383 wrote:Chevy Guy doing the Building????

X3!!!!!

I would be shutting him down right there and tell him to quit watching Horsepower tv as his source of Ford tech.

yes shut him down ASAP like in 2 days ago...... or he could screw it up big time.....



Randy

The 3-4 page instruction sheet that comes with each new block, which YOU should have, explains in detail everything you need to know about the block oiling circuits. I suggest YOU read it before letting him do anything to that block.

chuck stevens wrote:The 3-4 page instruction sheet that comes with each new block, which YOU should have, explains in detail everything you need to know about the block oiling circuits. I suggest YOU read it before letting him do anything to that block.

Can I get an AMEN!

If mechanical lifters and roller rocker arms are to be installed the oil supply to the lifter gallies can be restricted. In the front of the block there are three oil gallies that are tapped for a 3/8” NPT plug (supplied). The upper oil galley on the right side of the block has also been internally tapped for a ¼” NPT pipe plug. By drilling a minimum of a .060 hole in a ¼” NPT pipe plug and installing the plug in the ¼” tapped hole, oil flow will be restricted to the lifter galley.
NOTE #1: Not recommended when bronze lifter bushings are installed
NOTE #2: Oil pressure taken from upper rear of block may show lower pressure due to the restrictor. Normal oil pressure can be obtained if taken from the front of the

FRONT FACE OF BLOCK 3/8” NPT PIPE PLUGS THAT ARE INSTALLED ON THE RIGHT SIDE (FROM REAR FACE) AT 2 LOCATIONS:
We recommend that the pipe plug that is inserted into the priority oil hole be ground from the rear side with a total material removal of .125” to .150” so as to NOT restrict the oil flow to the main bearing.
block.


copy/paste

He said Engine Systems is the builder. Haven't I heard he works quite well with the BBF? ....with an IDT block I'm not so sure, however.

Lem Evans wrote:If mechanical lifters and roller rocker arms are to be installed the oil supply to the lifter gallies can be restricted. In the front of the block there are three oil gallies that are tapped for a 3/8” NPT plug (supplied). The upper oil galley on the right side of the block has also been internally tapped for a ¼” NPT pipe plug. By drilling a minimum of a .060 hole in a ¼” NPT pipe plug and installing the plug in the ¼” tapped hole, oil flow will be restricted to the lifter galley.
NOTE #1: Not recommended when bronze lifter bushings are installed
NOTE #2: Oil pressure taken from upper rear of block may show lower pressure due to the restrictor. Normal oil pressure can be obtained if taken from the front of the

FRONT FACE OF BLOCK 3/8” NPT PIPE PLUGS THAT ARE INSTALLED ON THE RIGHT SIDE (FROM REAR FACE) AT 2 LOCATIONS:
We recommend that the pipe plug that is inserted into the priority oil hole be ground from the rear side with a total material removal of .125” to .150” so as to NOT restrict the oil flow to the main bearing.
block.

Thanks for the info Lem.

I was unaware of the different mods you mentioned. This will help me understand what is going on.
Thanks to everyone how chimed in. I was just wanting to be informed on possible problems.

copy/paste

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Thanks ever one for the help. Lem answered my question.

I know this is an old post, but I have a premier engine block and started devloping upper end oiling issues. I did not originally build this engine, but after a couple three rebuilds, I noticed the oil pressure started doing some weird things. I was running a dry sump and when the oil got warmed up it actually increased oil pressure(which is backwards from what I have always seen). After about 8-10 passes, we chewed a pushrod and broke the hard tip in valve. It was late in the year, so I slapped a new valve in and tried to finish the year. 5 passes later it did it again. Same cylinder, other valve(#5 cylinder); this gets me thinking. The way the oil system works is that would be the last set of lifters to get oil. As I tear it down, I noticed as I went up the passenger side from back to front pulling lifters, the closer to the front I got the less oil there was. By the time I got to the front 4 lifters, there was no oil that came out with them. Now I know why I was breaking valve tips, no oil to the front passenger top end. I get checking things over very carefully and found that the plugs that was supplied with the engine could not be machined off .120-.150", it poked a hole in it at about .050 -.060 material removal. The original engine builder ground off that plug, but only removed .015-.020" of material. By measuring the plug and the hole depth, it looks as if the oil gallery coming from the supply to the priority & lifters was closed down to near 5/16" or a little less from approx 1/2". To fix this I used a tapered plug machined it down from both sides so the plug is only about 1/4-5/16" thick. Now when I screw it is flush and does not restrict this orifice at all.

I noticed the oil pressure is rock steady all the time now, and I have oil on the upper end. This engine does have bronze lifter bushings, which I replaced after this issue, making sure they are at .0015 clearance as recommended by the lifter manfacturer.



My main question is when turning the pump with a drill, in order for oil to come out of the pushrods, the valves need to have started to open about .150-.250; is this normal?



Thanks

Mike

Are the lifter bushings being used to restrict the oil to the lifters or still restricter at the end of the oil galliery?

The lifter bushings are used to restrict the oiling.

My main question is when turning the pump with a drill, in order for oil to come out of the pushrods, the valves need to have started to open about .150-.250; is this normal?



Thanks

Mike[/quote]

Mike,

What you are seeing is that the intersection angle of the pushrod to rocker arm cup, is fairly great. The "sides" of the rocker arm cup has the oil hole in the pushrod blocked off. It is not until you get the valve open somewhere around the .150 to .250" lift, that your pushrod and the rocker arm cup are lining up with each other at an intersection angle of approximately 90*, and thus allowing the oil to flow on through the rocker arm cup and out.

So yes, I'd say this might be normal, but I believe that if you installed longer pushrods, you would find that the rocker arms will start oiling earlier. The possible problem with longer pushrods is that they might screw up your roller tip pattern on the valve stem.

With the engine secured, and the spark plugs out of it, use a torque wrench and see how much torque it takes to turn the assembled engine over by hand, with your present pushrod lenght and then again with some longer pushrods.

Hope this helps,
Charlie

That sounds logical to me. I was concentrating more on the valve tip pattern than the cup-pushrod contact angle. I will check that out.

Even with .025 lash, there does not seem to be any oil coming out of the pushrods ends. There is a small hole in the lifter bushings, and I was thinking that they were not getting enough oil to the pushrod until the hole in the bushing lined up with the hole in the lifter? I have made 1 pass since putting it back together, and there is still a "chirp" on the big end after a pull. Not near as bad as before, but man has it got me baffled. It sounds like metal rubbing making a chirp.

Do the lifters have a small notch cut in them from the oil band to the small oil hole? I know some push rod manufacturers recomend this. I use this mod and have plenty of oil up top with the same block and lifters bushed no restrictor in the front.

i have never ran the lifter bushings or thought of any reason i'd need to.your oiling trouble could be too much restriction with the bushings.the oil to the top has to make it into the lifter by the bore it runs in.i think the bushing idea came up when folks put the lifters in wrong and flood the topend.you can cut a small notch like ^^he said and get all you want up top.depends on where the hole is in your bushings tho.JMO!

LETHAL_DOSE wrote:...I was thinking that they were not getting enough oil to the pushrod until the hole in the bushing lined up with the hole in the lifter?

Yes, this is also a possiblity (in addition to Charlie's thoughts). Tight lifter bores with small oil feed(s), etc.

Paul

strokedmyford wrote:Do the lifters have a small notch cut in them from the oil band to the small oil hole? I know some push rod manufacturers recomend this. I use this mod and have plenty of oil up top with the same block and lifters bushed no restrictor in the front.

WE HAVE A WINNER /\

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this happens when certain cams are used,and hole is too far away to receve presser all the time,if bushings are used sometimes even those wind up having the oil hole drilled a little too far away from lifter oil hole,THUS LIFTER MUST BE UP to receve oil flow





-rich