Re: New Prop
Posted: 16 Dec 2016, 00:27
Dave
This sounds like a much better fix than pipe cleaners which has been suggested by a few people. I have actually heard of pipe cleaners being used and that they came out of the top of the push-rod. With the roll pin because it is a tap fit into the push-rod and squeezes down as it goes in and is made of spring steel it gets a decent grip on the inside of the push rod. Apparently this fix is not known for the roll pins coming out and has been around for a while, it's just that I had never heard of it before. The idea is to put the end of the push-rod with the roll pin in it down to the lifter so that if one does get blown through it just goes into the push-rod.
Dave I understand where you are coming from, it doesn't take much to stuff an engine but I'm over the oil issue. If it works its a cheap fix as it cost me $4.00 for 20 roll pins. This compared with $3500 for a dry sump which is one of the fixes which has been suggested and I still can't see how a dry sump will change anything as you still have to pump the oil into the same oil galleries that it is currently pumped into. Having put 16 roll pins into 16 push-rods I can tell you that they are not a loose fit and it takes a bit to tap them in, I am not expecting that they will be just popping out at the drop of a hat.
I will let you know how it goes, but if my mate can run a sprint car engine to 8000 rpm with this roll pin setup in his push-rods and not have any over oiling issues from his rocker covers and not have the roll pins come out it has to be worth a try. He tells me that his engine has been this way for a long time now.
I guess that every one has to figure out what they want to do with their engine to fix any issues that they might have with their engine. This is what I am doing to fix the rocker cover over oiling issue I have with my engine.
Bob
This sounds like a much better fix than pipe cleaners which has been suggested by a few people. I have actually heard of pipe cleaners being used and that they came out of the top of the push-rod. With the roll pin because it is a tap fit into the push-rod and squeezes down as it goes in and is made of spring steel it gets a decent grip on the inside of the push rod. Apparently this fix is not known for the roll pins coming out and has been around for a while, it's just that I had never heard of it before. The idea is to put the end of the push-rod with the roll pin in it down to the lifter so that if one does get blown through it just goes into the push-rod.
Dave I understand where you are coming from, it doesn't take much to stuff an engine but I'm over the oil issue. If it works its a cheap fix as it cost me $4.00 for 20 roll pins. This compared with $3500 for a dry sump which is one of the fixes which has been suggested and I still can't see how a dry sump will change anything as you still have to pump the oil into the same oil galleries that it is currently pumped into. Having put 16 roll pins into 16 push-rods I can tell you that they are not a loose fit and it takes a bit to tap them in, I am not expecting that they will be just popping out at the drop of a hat.
I will let you know how it goes, but if my mate can run a sprint car engine to 8000 rpm with this roll pin setup in his push-rods and not have any over oiling issues from his rocker covers and not have the roll pins come out it has to be worth a try. He tells me that his engine has been this way for a long time now.
I guess that every one has to figure out what they want to do with their engine to fix any issues that they might have with their engine. This is what I am doing to fix the rocker cover over oiling issue I have with my engine.
Bob