Absolutely DannyG! We had heard of the pipe-cleaner trick from another member recently as well. Had we still been using the standard flow-through pushrods, it surely would have been worth the try, but we had already made the restriction by going with the 60% restricted flow pushrods that are made with the smaller diameter hole.Hang in there, you're going to get it solved !
I think the pipe cleaner in the pushrod idea above was brilliant ...
DannyG
You guys are the best! Just removed hood and preparing to pull engine today. Bubba22349, we will probably be purchasing that lifter galley scoring tool from summit today also. Another forum member shared something with me that said we need to score lifters 2 & 3 galley to allow for better oiling of the distributor gear.
Hi Goldie as the above post by "super4ord" states that 2 of the Lifters have already been Grooved so you won't need to Groove those two Lifter Bores.The lifters for lifter bores 2 & 3 on each side of the distributor were scored for a little leakage to the distributor gear. Two of the 12 lifters were scored & 10 were not. I can't remember if I gave you the lifters in a box to install or if they were already in the engine. I'm pretty sure they were already in the engine. I think I remember worrying if they would slide out of the block with it laying on the side in the container. That is why it was slightly tilted up with the lifter side of the engine on the top side IIRC.
Hi super4ord, grooving of the Lifter bores helps to get a little more Oil onto the Camshaft Lobes and Lifter Faces with the reduction of the Zinc in many Oils now days this is helpful for having a longer lasting Camshaft's and Lifter's, it can also be done with either a Hydraulic Lifter or a Solid Lifter. It will also be a better alternative than using the EDM Type Hydraulic Lifters, this is just a controlled Oil leak to get some extra Oil to the Cam Lobes and Lifter Faces the idea is a good thing, however having that hole in the face of the Lifters also bleeds Lifters down reducing their total Valve Lift.I grooved 2 lifters, not the bores. Check #2 & #3 when you pull them. I hadn't ever heard of grooving the bores. One of the stickies about Yella Terra rockers was to groove the #2 & #3 lifters for increased oil flow to the distributor gear.
Ok the 250 is, two front .375 and the rear is .700 so the 250 rear hole is .075 larger, and the stock pump is 12% more than a 200.I did not even think to look at a 250, I am not able to do pics now but soon. I once started to drill another rear hole but stopped when I realized the I was going to drill into the passage for the oil sender. I will see if I can measure a 250.
You just have to look a see where the oil passages and water jacket is if you look from the top and then the bottom you can get a good idea. I have not added any more holes after the almost screw up just made them bigger especially the rear.Thank you drag-200stang, that's good info to know. I am now wondering how much bigger that rear drain hole could safely be up sized past that .700 size (its close to 3/4 Inch .750) and if there is also another location that could also be drilled in the rear part of the Lifter Galley? This shows me that Ford also relised that they needed a larger Rear Drain Hole for the higher volume capacity of the Oil Pump's used on the 250 Six's.