5.9 Magnum upgrades?
#21
Does yours need them? Did you see the motor run? Do you know oil pressure is good? If so, just my opinion, but You would probably be ok to reuse bearings. Your already reusing the rod and main bearings....
On the other hand, I replaced my own with a kit like this. https://www.ebay.com/itm/Universal-E....c100011.m1850
But if you have a machine shop close by, usually its a low fee they charge to replace bearings. If I had it to do again, I would have let the machine shop install. Mine went in fine, but its easy to mess up......
Its a gamble reusing, but where do you draw the line? Short of a complete rebuild.
On the other hand, I replaced my own with a kit like this. https://www.ebay.com/itm/Universal-E....c100011.m1850
But if you have a machine shop close by, usually its a low fee they charge to replace bearings. If I had it to do again, I would have let the machine shop install. Mine went in fine, but its easy to mess up......
Its a gamble reusing, but where do you draw the line? Short of a complete rebuild.
#22
Does yours need them? Did you see the motor run? Do you know oil pressure is good? If so, just my opinion, but You would probably be ok to reuse bearings. Your already reusing the rod and main bearings....
On the other hand, I replaced my own with a kit like this. https://www.ebay.com/itm/Universal-E....c100011.m1850
But if you have a machine shop close by, usually its a low fee they charge to replace bearings. If I had it to do again, I would have let the machine shop install. Mine went in fine, but its easy to mess up......
Its a gamble reusing, but where do you draw the line? Short of a complete rebuild.
On the other hand, I replaced my own with a kit like this. https://www.ebay.com/itm/Universal-E....c100011.m1850
But if you have a machine shop close by, usually its a low fee they charge to replace bearings. If I had it to do again, I would have let the machine shop install. Mine went in fine, but its easy to mess up......
Its a gamble reusing, but where do you draw the line? Short of a complete rebuild.
I wouldn't reuse old bearings. They are fairly cheap compared to the aggravation of losing oil pressure on a fresh engine. It's like swapping the front seat on an automatic transmission when you swap engines. Severala hours of aggravation for a $20-30 part when it leaks later.
#23
Does yours need them? Did you see the motor run? Do you know oil pressure is good? If so, just my opinion, but You would probably be ok to reuse bearings. Your already reusing the rod and main bearings....
On the other hand, I replaced my own with a kit like this. https://www.ebay.com/itm/Universal-E....c100011.m1850
But if you have a machine shop close by, usually its a low fee they charge to replace bearings. If I had it to do again, I would have let the machine shop install. Mine went in fine, but its easy to mess up......
Its a gamble reusing, but where do you draw the line? Short of a complete rebuild.
On the other hand, I replaced my own with a kit like this. https://www.ebay.com/itm/Universal-E....c100011.m1850
But if you have a machine shop close by, usually its a low fee they charge to replace bearings. If I had it to do again, I would have let the machine shop install. Mine went in fine, but its easy to mess up......
Its a gamble reusing, but where do you draw the line? Short of a complete rebuild.
#24
[[b]QUOTE=ol' grouch;3489152]I wouldn't reuse old bearings. They are fairly cheap compared to the aggravation of losing oil pressure on a fresh engine. It's like swapping the front seat on an automatic transmission when you swap engines. Severala hours of aggravation for a $20-30 part when it leaks later.[/QUOTE]
Umn...... No, its not. Do you even bother to read the post, or do you just try to contradict everything I write? Its not a fresh engine.
Seal swap = cam bearings swap
Umn...... No, its not. Do you even bother to read the post, or do you just try to contradict everything I write? Its not a fresh engine.
Seal swap = cam bearings swap
Last edited by 93 ragtop; 08-07-2020 at 07:51 AM.
#25
In a nutshell, its risk vs cost-time.
With a engine, especially that you have not seen run, ie: is it smooth, no smoke, and holds good oil pressure, its a gamble.
If I suspected the cam bearings are worn, I would be even more suspect of the rod bearings, not to mention the mains......
At what point, do you say, Ill chance the motor and try it, or do a rebuild? What parts are worth replacing while its out? These are questions you have to weight out yourself.
Through out the years, there have been a lot of cams swapped, with the engine left in the truck.... And those are done, reusing the cam bearings.
Im not saying its a bad idea to swap bearings, but if you are not sure how to do it, or seen it done, assuming you do swap the cam bearings, I would strongly suggest letting a machine shop swap them. Its easy not to get the oil hole aligned, its easy to mushroom the bearing.(and this will make it too tight) And you need a cam bearing tool to remove and install them.
Again, for a one time deal, let a shop swap them. JMO
#26
In a nutshell, its risk vs cost-time.
With a engine, especially that you have not seen run, ie: is it smooth, no smoke, and holds good oil pressure, its a gamble.
If I suspected the cam bearings are worn, I would be even more suspect of the rod bearings, not to mention the mains......
At what point, do you say, Ill chance the motor and try it, or do a rebuild? What parts are worth replacing while its out? These are questions you have to weight out yourself.
Through out the years, there have been a lot of cams swapped, with the engine left in the truck.... And those are done, reusing the cam bearings.
Im not saying its a bad idea to swap bearings, but if you are not sure how to do it, or seen it done, assuming you do swap the cam bearings, I would strongly suggest letting a machine shop swap them. Its easy not to get the oil hole aligned, its easy to mushroom the bearing.(and this will make it too tight) And you need a cam bearing tool to remove and install them.
Again, for a one time deal, let a shop swap them. JMO
Last edited by 00t444e; 08-07-2020 at 10:22 AM.
#27
If the engine still has good compression it isn't going to a machine shop, I'll get the tool and do the cam bearings myself if I have to. I don't want to go through the hassle and expense of taking it to a machine shop . I rebuild and regear axles so I think I can probably figure out how to swap cam bearings.
#30