looper question

[phil blomquist]

wrist pin bearings,witch is better for wear loose needle bearings or caged? putting togather parts list and i was wondering would one be better on the long run or does it really matter thanks:D phil

[BeefKid]

we use caged.... seems to hold up lol...especially for spinning 8k everytime out:thumbsup:

[phil blomquist]

thanks for reply caged would seem to be easier install for sure i was thinking more bearing surface with loose thats why i asked thanks phil:smiletest:

[racer]

I would not use the loose ones on an engine that will see over 7000 rpm under either is fine. The problem is not the rollers its that washers.

[scc82]

the loose bearings are definetly better, twice the contact surface. mercs use loose bearings and they turn higher then any looper will. im sure either one will work fine for you, but loose is better, for sure.

[Instigator]

we use caged.... seems to hold up lol...especially for spinning 8k every time out:thumbsup:

if they hold up for two hooligan brothers that have boats with light switches (on/off) for throttles, and their only preventive maintenance consists of refilling ice in the beer cooler and they can't break them............;) :p Nuff said.

On a serious note, I've NEVER run the loose bearings in any of my Hi Perf Motors and don't know anyone who has. I've also NEVER had a rod bearing issue in ANY of my 7500 - 8500 RPM motors.

If that ain't enough, check Stokers (racers) reply. End of discussion.

[jenksam]

if they hold up for two hooligan brothers that have boats with light switches (on/off) for throttles, and their only preventive maintenance consists of refilling ice in the beer cooler and they can't break them............;) :p Nuff said.

On a serious note, I've NEVER run the loose bearings in any of my Hi Perf Motors and don't know anyone who has. I've also NEVER had a rod bearing issue in ANY of my 7500 - 8500 RPM motors.

If that ain't enough, check Stokers (racers) reply. End of discussion.

THE BROTHERS ARE FOR SURE THE BEST TEST MULES THAT I HAVE EVER HAD:)

NOW JUST FOR IN PUT, ON THE CAGED BEARING BE CAREFUL WHO YOU GET THEM THROUGH AND WHO MAKES THEM THERE ARE A COUPLE OF VENDORS THAT HAVE HIGH FAIL RATES. I USE ONLY THE INA BEARINGS HAVE NOT HAVE ANY PROBLEMS WITH THEM:thumbsup: JUST MY .02

[phil blomquist]

the results seem to lean towards caged. I have two powerheads . the fingerported2.7 had loose bearings and the 3ltr had caged .None of the bearings failed but why reuse bearings when pistons burnt up. are pro marine bearings ok? thanks phil:smiletest::D

[BeefKid]

the loose bearings are definetly better, twice the contact surface. mercs use loose bearings and they turn higher then any looper will. im sure either one will work fine for you, but loose is better, for sure.

i got a omc thats seen 9400 with caged:thumbsup: id say they are good


if they hold up for two hooligan brothers that have boats with light switches (on/off) for throttles, and their only preventive maintenance consists of refilling ice in the beer cooler and they can't break them............;) :p Nuff said.

On a serious note, I've NEVER run the loose bearings in any of my Hi Perf Motors and don't know anyone who has. I've also NEVER had a rod bearing issue in ANY of my 7500 - 8500 RPM motors.

If that ain't enough, check Stokers (racers) reply. End of discussion.

:rolleyes::iagree: Well put gary:D


THE BROTHERS ARE FOR SURE THE BEST TEST MULES THAT I HAVE EVER HAD:)


:D:D always put your stuff to the test!! LET IT EAT!!

JUST REMEMBER YOU AINT FIRST YOUR LAST!!:D:thumbsup:

[jenksam]

the results seem to lean towards caged. I have two powerheads . The fingerported2.7 had loose bearings and the 3ltr had caged .none of the bearings failed but why reuse bearings when pistons burnt up. Are pro marine bearings ok? Thanks phil:smiletest::d

that is were i get mine through you will have to ask what vendor they have in stock. For awile they had some form china that i would not put in anything. I do belive that they have some of the ina in now.

[phil blomquist]

caged wins out thanks for all the imput. I put the finger ported 2.7 to the side till i get this 3 ltr. up and going wifes cutting into my motor funds i wanted to get both done now. she seems to scream about my HYDROSTREAM:D thanks again phil

[phil blomquist]

thanks for reply on pro marine bearings. I dont want any china products in my motor chine walking is acceptable though thanks phil:D

[2.5_stoker]

I would not use the loose ones on an engine that will see over 7000 rpm under either is fine. The problem is not the rollers its that washers.

i would say that the man has spoken!...cant really argue with his know how on an omc!

[baja200merk]

if they hold up for two hooligan brothers that have boats with light switches (on/off) for throttles, and their only preventive maintenance consists of refilling ice in the beer cooler and they can't break them............;) :p Nuff said.

On a serious note, I've NEVER run the loose bearings in any of my Hi Perf Motors and don't know anyone who has. I've also NEVER had a rod bearing issue in ANY of my 7500 - 8500 RPM motors.

If that ain't enough, check Stokers (racers) reply. End of discussion.

we try to break em, ask any lake tarpon resident:reddevil:


THE BROTHERS ARE FOR SURE THE BEST TEST MULES THAT I HAVE EVER HAD:)

NOW JUST FOR IN PUT, ON THE CAGED BEARING BE CAREFUL WHO YOU GET THEM THROUGH AND WHO MAKES THEM THERE ARE A COUPLE OF VENDORS THAT HAVE HIGH FAIL RATES. I USE ONLY THE INA BEARINGS HAVE NOT HAVE ANY PROBLEMS WITH THEM:thumbsup: JUST MY .02

bout to test a 3.3 here soon :D

[jenksam]

we try to break em, ask any lake tarpon resident:reddevil:
bout to test a 3.3 here soon :D

KEEP DREAMIN:rolleyes::thumbsup:

[scc82]

racer, not questioning you, but what is the theory behind the caged bearings being better? i know thats what everybody is saying, but no one has given a reason. like i said earlier, im sure either one would work fine for him. i would think that twice the surface area to help bear the load would be a good thing, but i really havent seen worn out wrist pins and bearings since 135 and 75hp omc from the seventys, so im sure the caged are probally ok, i wonder why omc replaced them with twice as many needles and no cage? not trying to argue , but dont understand why you would not want to use loose needles in high rpm motors. all mercs v6 and most other high rpm motors use loose needles. is this just a omc v6 looper thing? again not being smartass just would like to educate myself better, from someone with your credentials:thumbsup:
thanks stan carson,:cheers:

[jenksam]

This is the way that it was explained to me.

With the full complement (loose) roller bearing it is harder to dissipate the heat.with one roller touching the other one will roll one way wile the other the other way.

The the caged bearing you do not have this as well the rollers are in place and rolling in a streight direction.


racer, not questioning you, but what is the theory behind the caged bearings being better? I know thats what everybody is saying, but no one has given a reason. Like i said earlier, im sure either one would work fine for him. I would think that twice the surface area to help bear the load would be a good thing, but i really havent seen worn out wrist pins and bearings since 135 and 75hp omc from the seventys, so im sure the caged are probally ok, i wonder why omc replaced them with twice as many needles and no cage? Not trying to argue , but dont understand why you would not want to use loose needles in high rpm motors. All mercs v6 and most other high rpm motors use loose needles. Is this just a omc v6 looper thing? Again not being smartass just would like to educate myself better, from someone with your credentials:thumbsup:
Thanks stan carson,:cheers:

[phil blomquist]

amen to that my brothers racer will be doing my fingerported 2.7 resleeve job soon as i can i have only been on short time and figured that out thanks again phil:D:thumbsup:

[racer]

I have seen several of the washers on the loose bearing set up break, every time they show signs of heat as sam mentioned

[phil blomquist]

Racer ,thanks for the information on the bearings getting parts ordered soon wanted to get it right. will send ya 2.7 for resleeve soon thanks again phil:smiletest:

[frank jackson]

you may want to open the bores up to 3ltr specs and run pistons from the 4ltr v8 .

[6Killer]

caged bearings and big rods last and last. Gets my vote.

[phil blomquist]

its already bored out to 3ltr not much room left plus somebody machined too far then put std piston in hole flopped around so much ring caught sideop exhaust port and chipped about1/4 out of sleeve see picture on page 4 titled finger ported 200 thanks phil:nonod:

[phil blomquist]

agreed completlythanks

[phil blomquist]

sorry wrong page its on page 6 under finger ported 200