6.9 or 7.3 Lifters Deal....

JSVD

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They may be better for the bigger valve springs... but really i think they're better when your truck goes from stop to go very rapidly. Or if for some reason you're slamming it in and out of reverse cookoo?
 

riotwarrior

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910 springs don't produce enough pressure for us to be concerned....

We are not talking 500 lbs force from springs here our springs are actually quite soft compared to many!
 

ZWilson07

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So I guess the general gist is for the IH applications, 7.3, 6.9, 6.5 etc the roller bearing ones are still the way to go.

Is it worth throwing in that bushing ones that have the oil journal in them might be a good "middle ground?"

I don't think the international/ford ones have oil journals inside of them though according to what we have seen in this thread.
 

chris142

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I too have bought stuff thinking I was getting some one thing and got another style. Bummer
 

wh1056

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An excerpt from the eBay listing:
These are 0.921" in diameter and are the OEM part with the Large Bronze Axle not like the import parts that use a small steel axle with the needles that break.

Sounded like the lesser of two evils to me - unless I wanted to spring for genuine International parts at three or more times the price.

I have read that the oil supply passages to the roller are EDM machined, and it sounds like they are very small. That makes sense to me because if they were too big, the lifter would never pump up or it would bleed off too quickly. I haven't disassembled one of these to look.
I will be stopping at a local automotive machine shop (hopefully tomorrow) and will attempt to find out more about these lifters.
 

ZWilson07

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An excerpt from the eBay listing:


Sounded like the lesser of two evils to me - unless I wanted to spring for genuine International parts at three or more times the price.

I have read that the oil supply passages to the roller are EDM machined, and it sounds like they are very small. That makes sense to me because if they were too big, the lifter would never pump up or it would bleed off too quickly. I haven't disassembled one of these to look.
I will be stopping at a local automotive machine shop (hopefully tomorrow) and will attempt to find out more about these lifters.



Whats the difference between genuine International parts and these listed?

I was under the impression they were factory oem parts?
 
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cpdenton

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I actually emailed the seller, perhaps this is why he posted the new information. I admit, when I took the one apart, it would have been nearly impossible to see an oil galley hat measured in the thousandths.
 

wh1056

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Whats the difference between genuine International parts and these listed?

I was under the impression they were factory oem parts?

I have no idea what International used - only going by what's posted by others in this thread.

I figured that these were Sealed Power, Muskegon, TRW, Wolverine, Melling, etc.
 

cpdenton

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This is what the seller responded with. I understand his reasoning.....

I also like the brand name these are. I have done some looking, and apparently they are oe suppliers to companies like comp and isky.

Dear cpdenton,

Hi, These are solid axle and no needles. All the Heavy duty engines (Cat, Detroit Diesel, Cummins, IH, ect) use lifters with solid axles because the needle bearings wear out to nothing over time because the oil is so gritty in diesel applications. These were bought directly from the manufacture Hy-Lift Johnson. before they went bankrupt in 2002 and ever since then the new manufacture has used the roller type. The new Duramax lifters are also solid axle because the previous needle bearings did not last. If you do not want them I will gladly take them back. I actually have a few sets that I found of the needle bearing design. I sold the needle ones to customers that were looking for rebuilds because they were selling their truck and I wanted to save these solid bearing design ones for the extreme duty marine engines that I built. I never had a failure using these.

Let me know and have a great week.
 

ZWilson07

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I have no idea what International used - only going by what's posted by others in this thread.

I figured that these were Sealed Power, Muskegon, TRW, Wolverine, Melling, etc.



In the ad he listed them as OEM, part number for International/Ford/GM 25342148/E3TZ6500A/5233465

How that corresponds with the above info and who originally made them, I dont know.
 

icanfixall

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Please ask this question on other idi forums.. "Why are some lifters needle bearing and some are bushing bearing rollers and when did International change from bushing to needle bearing rollers"..
 

gingrass179

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this is the place people are going to know...lol I play on the other sites...and If I want facts I start here...if I want out of the box opinions...well you get the point
 

ZWilson07

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this is the place people are going to know...lol I play on the other sites...and If I want facts I start here...if I want out of the box opinions...well you get the point

Exactly.

Im actually shocked in all honesty that the ones on this forum haven't tracked all the info down because they usually know every thing there is to possibly know about these trucks.
 

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