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Sun Oct 18, 2015 3:05 pm

Juanito84 wrote: If it's hard to turn wouldn't that mess up the torque reading?
You already know the answer to this. Get some new nuts and bolts, or knock some good ones out of a spare rod. If they're hard to turn, I just won't trust them, even on a stock build.

Sun Oct 18, 2015 4:05 pm

Does anyone else think there is a correlation in cheap ibeam rods (whatever the brand) and spun rod bearings? Seems every engine i tear down that is grenaded has some aftermarket I beams in it. Maybe just the builders using them dont know what they are doing? I wont use them because of it, i see too many for it to be coincedent.

Sun Oct 18, 2015 4:18 pm

I for one have never used thread locker on my rod's nuts. I only use moly lube(cam nueton/lifter lube) .or engine oil. if you dont have a spec for the moly use oil. I dont recall ever seeing a locktight spec any where. I also have never had any rod bolt issues. I do the threads and the nut&rod face where they mate. if there is burs or somethen fix that first.

Sun Oct 18, 2015 7:41 pm

SamT wrote: Does anyone else think there is a correlation in cheap ibeam rods (whatever the brand) and spun rod bearings? Seems every engine i tear down that is grenaded has some aftermarket I beams in it. Maybe just the builders using them dont know what they are doing? I wont use them because of it, i see too many for it to be coincedent.
no
the correlation is setting clearances verses assembling it and praying.

Mon Oct 19, 2015 5:16 am

modok wrote: SamT wrote: Does anyone else think there is a correlation in cheap ibeam rods (whatever the brand) and spun rod bearings? Seems every engine i tear down that is grenaded has some aftermarket I beams in it. Maybe just the builders using them dont know what they are doing? I wont use them because of it, i see too many for it to be coincedent.
no
the correlation is setting clearances verses assembling it and praying.

Well the last 2 engines i used I beams in i had to have the crank polished to get proper clearance. Maybe they are tigher than stock rods and people dont notice. Anyways, I have also noticed the massive pile of scat I beam rods a friend of mine that does dirt track motors has. There has to be something to it. Maybe they are too tight and people dont check, maybe people dont know how to torque them and wing it, or maybe the rev the piss out of it because they have " good rods". But i dont see those issues with stock rods or h-beams coming my way. So maybe its superstition, but you wont see me using any i-beams.

Mon Oct 19, 2015 5:20 am

modok wrote: SamT wrote: Does anyone else think there is a correlation in cheap ibeam rods (whatever the brand) and spun rod bearings? Seems every engine i tear down that is grenaded has some aftermarket I beams in it. Maybe just the builders using them dont know what they are doing? I wont use them because of it, i see too many for it to be coincedent.
no
the correlation is setting clearances verses assembling it and praying.

So True ....

Mon Oct 19, 2015 10:31 am

SamT wrote: modok wrote: SamT wrote: Does anyone else think there is a correlation in cheap ibeam rods (whatever the brand) and spun rod bearings? Seems every engine i tear down that is grenaded has some aftermarket I beams in it. Maybe just the builders using them dont know what they are doing? I wont use them because of it, i see too many for it to be coincedent.
no
the correlation is setting clearances verses assembling it and praying.

Well the last 2 engines i used I beams in i had to have the crank polished to get proper clearance. Maybe they are tigher than stock rods and people dont notice. Anyways, I have also noticed the massive pile of scat I beam rods a friend of mine that does dirt track motors has. There has to be something to it. Maybe they are too tight and people dont check, maybe people dont know how to torque them and wing it, or maybe the rev the piss out of it because they have " good rods". But i dont see those issues with stock rods or h-beams coming my way. So maybe its superstition, but you wont see me using any i-beams. Assembling anything in an engine without making sure it is correctly done is just stupid. Dont let that dirt track friend of yours do any work for you.

Mon Oct 19, 2015 11:11 am

esde wrote: Juanito84 wrote: If it's hard to turn wouldn't that mess up the torque reading?
You already know the answer to this. Get some new nuts and bolts, or knock some good ones out of a spare rod. If they're hard to turn, I just won't trust them, even on a stock build.
Uhoh! So I see the threads on the bolts are a little damaged. So then, if spinning a die on them is not an option, are there any guidelines on how to remove them and install them? Or can I use a die on just the tip of the bolt seeing how the nut will be passed that part of the bolt when installed?

Most of them spin on just fine. I'll double check but I think this is the only one that has problems. Or should I just get all new bolts and nuts anyway? I do plan on getting new nuts. But the places I get parts from only have ARP bolts that look very different. Wouldn't I need to replace all of the bolts with new ones in that case?

Like I said, this is, in reality, just a stock performance engine. And no. I do not have any spare rods lying around. These are stock forged VW rods.

Mon Oct 19, 2015 12:37 pm

Just clean up the 2 dingd threads and use

Mon Oct 19, 2015 1:45 pm

I ordered the nuts from ACN! I'll just clean up those threads with a die, but only on those first two. The rest look fine so I'll leave them alone.

Tue Oct 20, 2015 9:20 am

Get a thread file. Easier to use correctly then a die, and you can remove only the material you want.

Brian

Tue Oct 20, 2015 5:43 pm

SamT wrote: modok wrote: SamT wrote: Does anyone else think there is a correlation in cheap ibeam rods (whatever the brand) and spun rod bearings? Seems every engine i tear down that is grenaded has some aftermarket I beams in it. Maybe just the builders using them dont know what they are doing? I wont use them because of it, i see too many for it to be coincedent.
no
the correlation is setting clearances verses assembling it and praying.

Well the last 2 engines i used I beams in i had to have the crank polished to get proper clearance. Maybe they are tigher than stock rods and people dont notice. Anyways, I have also noticed the massive pile of scat I beam rods a friend of mine that does dirt track motors has. There has to be something to it. Maybe they are too tight and people dont check, maybe people dont know how to torque them and wing it, or maybe the rev the piss out of it because they have " good rods". But i dont see those issues with stock rods or h-beams coming my way. So maybe its superstition, but you wont see me using any i-beams.
I could go on and on about bearing crush and oil clearance, but the short and sweet answer would be:
CB hones the big ends to the highside, and maybe others do too.

Eagle were on the lowside
So, if this was 15 years ago you'd see the opposite.

Rods with thinner caps, the cap stretches more so you get more clearance. That's very odd, but....it's true!!