Manley Nextek springs? Anyone?
#1
Manley Nextek springs? Anyone?
Anyone running these springs? Doing some spring shopping.
Yesterday I tore into my stuff, as I plan on replacing valve springs. Had isky's. Took a couple springs off, doing some measuring and checking. Didn't like the wear marks in the ID locators. Started looking further. Spring fit sloppy on the locator. The locator shoulder measured .680. Spring's inner ID, .740. It had a nice .060 clearance. Same story on the retainers. Looks like the springs may have been wandering around. Guess is pays once again, to take stuff apart yourself and check it.
I've had good luck with the isky's, but just looking around a bit.
Yesterday I tore into my stuff, as I plan on replacing valve springs. Had isky's. Took a couple springs off, doing some measuring and checking. Didn't like the wear marks in the ID locators. Started looking further. Spring fit sloppy on the locator. The locator shoulder measured .680. Spring's inner ID, .740. It had a nice .060 clearance. Same story on the retainers. Looks like the springs may have been wandering around. Guess is pays once again, to take stuff apart yourself and check it.
I've had good luck with the isky's, but just looking around a bit.
#2
Registered
iTrader: (1)
Joe, Couple questions-
Did the spring wire exhibit loss of material on the ID? This would be seen by flattening of the inner profile and could be measured.
Did the springs display loss of rate, or signs of degradation/uneven pressure?
As an aside, 0.060" clearance is misleading in my opinion. You had 0.030" radial clearance.
Did the spring wire exhibit loss of material on the ID? This would be seen by flattening of the inner profile and could be measured.
Did the springs display loss of rate, or signs of degradation/uneven pressure?
As an aside, 0.060" clearance is misleading in my opinion. You had 0.030" radial clearance.
Last edited by Cole2534; 11-29-2015 at 11:34 PM.
#3
Joe, Couple questions-
Did the spring wire exhibit loss of material on the ID? This would be seen by flattening of the inner profile and could be measured.
Did the springs display loss of rate, or signs of degradation/uneven pressure?
As an aside, 0.060" clearance is misleading in my opinion. You had 0.030" radial clearance.
Did the spring wire exhibit loss of material on the ID? This would be seen by flattening of the inner profile and could be measured.
Did the springs display loss of rate, or signs of degradation/uneven pressure?
As an aside, 0.060" clearance is misleading in my opinion. You had 0.030" radial clearance.
Yes, I guess it technically is .030 radial clearance. Still quite a bit more than it should be. This is why certain springs, go with certain hardware.
Either way, I plan on replacing the springs as they are due for replacement, as they have been on there a while, as well as the hardware.
#6
So far it seems like most guys who set up endurance stuff, like .005-.01 in this area .
#7
Banned
Springs, retainers and locators need to be snug fit IMO. When the engine spends most of it's life near or at peak torque it makes these things all the more critical for longevity and reliability.
Manley Nextec are good springs. Isky Tool Room with the RAD treatment are good springs. Anything I use in these sorts of engines have some sort of endurance treatment like metalax or other stress relief treatments.
Manley Nextec are good springs. Isky Tool Room with the RAD treatment are good springs. Anything I use in these sorts of engines have some sort of endurance treatment like metalax or other stress relief treatments.
Last edited by horsepower1; 11-30-2015 at 01:39 PM.