|
Post by fatguppy on Jan 24, 2015 14:24:24 GMT -5
Yeah, I know I need to keep reading, but what manual?? What page? Where are finding this info? You say you have it....now prove it. You want me to take you seriously..be straight forward and honest.
Hey, you're giving bad info to people, I'm calling you out on it. Simple as that. It's not a personal attack on you or your project, but the info you give out is going to cause someone to damage their engine.
Not sure how a tool that your buddy has is going to show the redline of the engine??? Are you confusing redline with the injection pump governor? If that's the case, unless your pumps been monkeyed with, the governor is set to limit the engine speed to 4250. How'd I get this info? Good question! See the numbers on the side of the injection pump? Those read out kind of like the Vin on your truck. They all mean something. I'm not going to decipher them for you, cause I'm not looking at your numbers, but you should see towards the end of the string of numbers ....2125..... Which indicates the governed limit. Now wait, I said the engine limit was 4250??? Ohhhh, the pump turns at half the rpm of the crank, hence the 2125! Cool huh! Different inj pumps have different governors, the S2 was equipped with 2125.
Redline of the engine is another matter....the manuals from Perkins don't list this info. So unless you have access to another manual, not from Perkins, it's not revealed and the number 4950 is a typo by you or just something made up. Which is probably why you didnt share the info with us on this board, but shared with the guys at the DP? but if you have another manual, by all means share with us, cause thats what we're all about, right!
If you can't substantiate your claims, then I must conclude that you just made up the info. Just take the time to substantiate and explain your info, simple as that.
|
|
|
Post by widetrack212 on Jan 24, 2015 16:39:14 GMT -5
Yeah, I know I need to keep reading, but what manual?? What page? Where are finding this info? You say you have it....now prove it. You want me to take you seriously..be straight forward and honest. Hey, you're giving bad info to people, I'm calling you out on it. Simple as that. It's not a personal attack on you or your project, but the info you give out is going to cause someone to damage their engine. Not sure how a tool that your buddy has is going to show the redline of the engine??? Are you confusing redline with the injection pump governor? If that's the case, unless your pumps been monkeyed with, the governor is set to limit the engine speed to 4250. How'd I get this info? Good question! See the numbers on the side of the injection pump? Those read out kind of like the Vin on your truck. They all mean something. I'm not going to decipher them for you, cause I'm not looking at your numbers, but you should see towards the end of the string of numbers ....2125..... Which indicates the governed limit. Now wait, I said the engine limit was 4250??? Ohhhh, the pump turns at half the rpm of the crank, hence the 2125! Cool huh! Different inj pumps have different governors, the S2 was equipped with 2125. Redline of the engine is another matter....the manuals from Perkins don't list this info. So unless you have access to another manual, not from Perkins, it's not revealed and the number 4950 is a typo by you or just something made up. Which is probably why you didnt share the info with us on this board, but shared with the guys at the DP? but if you have another manual, by all means share with us, cause thats what we're all about, right! If you can't substantiate your claims, then I must conclude that you just made up the info. Just take the time to substantiate and explain your info, simple as that. I have a perkins manual that my uncle gave me when I bought the truck and I was talking to him if he had any clue of what the redline was, he told me he had all of that wrote in the book, he bought the actual perkins 200 series book, the same one that's online, he bought it before they had internet, and he had wrote some numbers and info in the book and the one said "Max RPM 4950, REDLINE" he wrote that in the book, it wasn't printed in there. I don't know the page it was on since I've got to find the book in the attic and it's been awhile since I've looked at it. So I'm going off of what was in there, so if I'm already given the wrong info, you can't ridicule someone for being wrong. I figured he used the same kind of tool that my buddy/family friend has to figure it out. I don't remember if you put a piece of tape or a magnet or whatever it is on the crankshaft, and it's sort of like a timing light, you point it at the crankshaft at the piece of tape or whatever it is, and it shows your rpms, to find out redline hold it to the floor, atleast that's what he told me, I assume when he said redline he meant redline and not governed rpm. He has all kinds of specialized tools since he builds racing, and truck pulling engines. That's about as straight forward and honest as I can be, I don't know how I really need to explain this more, or if I can, cause that's all I KNOW. And yes I understand that the camshaft turns half the speed of the crankshaft and the inj. Pump spins the same speed as the cam. Next time I see my uncle I will ask him how he figured out redline or if he had the injection pump played with to make more rpms. That's all I know on this subject.
|
|
|
Post by fatguppy on Jan 25, 2015 22:12:30 GMT -5
That's cool. I couldn't find it in any of my Perkins manuals, so I just wanted to know. Yeah, before the internet we had to have all this stuff written down! It's amazing how many notes I have in my manuals too!
The procedure you mentioned is pretty typical of finding and adjusting the pump governor for farm and industrial equipment. Sometimes I use a pump rebuild shop in Canada that has Bosch test equipment and they can set the pump to be pretty close, right on the bench. Sometimes there are some minor adjustments that have to be made in the field tho. One thing I've always wanted to do, but never have, is see what the governor spring tension is rated at. The cummins guys swap those springs out to increase the pump governed rpm, but since the S2 pump already peaks at 4250, not sure if there are any higher spring rates available.
I would be nervous taking the S2 past 4500 tho. I'm not sure the valve train could handle it. I have a factory Ranger tach for the later turbo diesel and it has a yellow band starting at 4000, and red line at 4500. That's always been my rule of thumb for the NA engines too. So far I've never broken anything adhering to my rule of thumb.
|
|
|
Post by widetrack212 on Jan 25, 2015 23:43:06 GMT -5
That's cool. I couldn't find it in any of my Perkins manuals, so I just wanted to know. Yeah, before the internet we had to have all this stuff written down! It's amazing how many notes I have in my manuals too! The procedure you mentioned is pretty typical of finding and adjusting the pump governor for farm and industrial equipment. Sometimes I use a pump rebuild shop in Canada that has Bosch test equipment and they can set the pump to be pretty close, right on the bench. Sometimes there are some minor adjustments that have to be made in the field tho. One thing I've always wanted to do, but never have, is see what the governor spring tension is rated at. The cummins guys swap those springs out to increase the pump governed rpm, but since the S2 pump already peaks at 4250, not sure if there are any higher spring rates available. I would be nervous taking the S2 past 4500 tho. I'm not sure the valve train could handle it. I have a factory Ranger tach for the later turbo diesel and it has a yellow band starting at 4000, and red line at 4500. That's always been my rule of thumb for the NA engines too. So far I've never broken anything adhering to my rule of thumb. I thought about buying a pump just to have the local diesel performance shop go through it and do some work, bigger plungers, all the internals redone, and see if they could get it to fuel up to 5500 rpms, of course redoing the valve train with custom pushrods and let's say 65lbs valve springs.. Maybe stainless steel valves? One day when I get the funds together, I'd like to do a full out build on one of these engines. I think 200hp with reliability is possible with these engines, it would take experimenting, quite a bit of cash and some time. But it's a perkins, know a guy that had a 1150 massey that he tractor pulled, it was well over 850-900hp and it had a stock bottom end... 4800 rpms too. They're a pretty overbuilt engine. Had a perkins 4 banger turbo in a vermeer grinder that we stuck new rod bearings in due to the previous owner ran it low on oil. Very overbuilt..
|
|