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1.6 CRANE ROLLER ROCKERS VS 1.5 HS's #1829501
05/18/15 09:12 PM
05/18/15 09:12 PM
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Now - Port Orange,Fla. Former...
MIKES_DUSTER Offline OP
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MIKES_DUSTER  Offline OP
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Heres my dilemma. Im using the 1.6 Cranes due to me running a SB with stock heads and poor rocker geometry and to get a little more lift on my cam. I had a adjuster break and heres my question.....Just buy a new adjuster or switch over to the 1.5 HS rockers????

Thanks!!!!!

Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1829504
05/18/15 09:16 PM
05/18/15 09:16 PM
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las vegas
70AARcuda Offline
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http://www.summitracing.com/parts/crn-99802-16/overview/make/dodge

Did it break while you were adjusting it or ?


Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1829531
05/18/15 09:43 PM
05/18/15 09:43 PM
Joined: Jan 2003
Posts: 6,591
Canton, Ohio
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Sport440 Offline
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Keep the 1.6,s buy a new adjuster. Also, since you broke a adjuster, sounds like your pushrods are to short.

Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1829543
05/18/15 10:04 PM
05/18/15 10:04 PM
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Bend,OR USA
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Cab_Burge Offline
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If you broke one off it is probally time to replace them all now instead of waiting for the others to start breaking one at a time work up twocents

Last edited by Cab_Burge; 05/18/15 10:04 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1829552
05/18/15 10:16 PM
05/18/15 10:16 PM
Joined: Jul 2013
Posts: 561
USA
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B3RE Offline
mopar
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Originally Posted By MIKES_DUSTER
Heres my dilemma. Im using the 1.6 Cranes due to me running a SB with stock heads and poor rocker geometry and to get a little more lift on my cam. I had a adjuster break and heres my question.....Just buy a new adjuster or switch over to the 1.5 HS rockers????

Thanks!!!!!


I'll agree that you have poor geometry, and the Harlands will make it worse. You likely broke the adjuster because the valvetrain is getting pounded. Keep the Cranes, get the geometry fixed, and you shouldn't be breaking any more adjusters.


Mike Beachel

I didn't write the rules of math nor create the laws of physics, I am just bound by them.
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: Cab_Burge] #1829663
05/18/15 11:13 PM
05/18/15 11:13 PM
Joined: Jan 2003
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Canton, Ohio
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Sport440 Offline
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Originally Posted By Cab_Burge
If you broke one off it is probally time to replace them all now instead of waiting for the others to start breaking one at a time work up twocents


That's good advice, as is Br3,s.

If the one adjuster broke the others aren't far behind because of the same geometry problems. Too short of pushrods, IMO, or ETC.

Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1829965
05/19/15 12:39 PM
05/19/15 12:39 PM
Joined: Jan 2003
Posts: 9,146
Now - Port Orange,Fla. Former...
MIKES_DUSTER Offline OP
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OK....The Cranes are BRAND NEW along with my motor. Only had some start up times and maybe a few miles on it and it did not break on start up. Rick (AARLUCAS)set them up for me after buying BRAND NEW Manton pushrods. We also put lash caps on because we didn't like the way the rollers sit on the valve. Rick is in NOOOOOOOO WAY at fault with what happened, he has been AWESOME!!!!!!!

How much are good adjusters??? Should I get them thru Crane???

Thanks again for the help!!!!!

Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1830063
05/19/15 02:38 PM
05/19/15 02:38 PM
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Posts: 561
USA
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B3RE Offline
mopar
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Originally Posted By MIKES_DUSTER
OK....The Cranes are BRAND NEW along with my motor. Only had some start up times and maybe a few miles on it and it did not break on start up. Rick (AARLUCAS)set them up for me after buying BRAND NEW Manton pushrods. We also put lash caps on because we didn't like the way the rollers sit on the valve. Rick is in NOOOOOOOO WAY at fault with what happened, he has been AWESOME!!!!!!!

How much are good adjusters??? Should I get them thru Crane???

Thanks again for the help!!!!!


"We also put lash caps on because we didn't like the way the rollers sit on the valve."

Oh boy, here we go again. How many WOT runs did you make, and how high did you twist it?

If you haven't done so, please read the tech articles on my website. I see way too many Mopar valvetrain issues, and it doesn't need to be.


Mike Beachel

I didn't write the rules of math nor create the laws of physics, I am just bound by them.
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1830088
05/19/15 03:13 PM
05/19/15 03:13 PM
Joined: Sep 2014
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Washington
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madscientist Offline
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Washington
A lash cap is a piss poor way to correct geometry. You have to RAISE and MOVE the shaft towards the intake manifoild if the valves are too long, or LOWER and MOVE the shafts closer to the springs if the valves are too short.

Take the lash capss off, correct the geometry and be done with it.


Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1830094
05/19/15 03:20 PM
05/19/15 03:20 PM
Joined: Jul 2012
Posts: 12
Oregon
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Pstew Offline
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Smith Bros. make great adjusters.

Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1830193
05/19/15 05:27 PM
05/19/15 05:27 PM
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usa
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lewtot184 Offline
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nobody ever looks at push rod/rocker adjuster geometry. everybody is stuck in the old "2-3 threads" showing b.s.

Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1830233
05/19/15 06:50 PM
05/19/15 06:50 PM
Joined: Jan 2003
Posts: 31,078
Oregon
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AndyF Offline
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Big difference between breaking an adjuster by over tightening it and breaking an adjuster because the pushrod was too short.

Also, if you look at the broken adjuster you might be able to figure out why it broke.

If the pushrods are way too short then there will be a lot of side loading on the adjuster and they'll break. Over tightening the adjuster will break it and there have been problems in the industry with batches of adjusters that were heat treated wrong.

Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: lewtot184] #1830293
05/19/15 08:29 PM
05/19/15 08:29 PM
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USA
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B3RE Offline
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Originally Posted By lewtot184
nobody ever looks at push rod/rocker adjuster geometry. everybody is stuck in the old "2-3 threads" showing b.s.


Nobody? Everybody?


Mike Beachel

I didn't write the rules of math nor create the laws of physics, I am just bound by them.
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: B3RE] #1830301
05/19/15 08:41 PM
05/19/15 08:41 PM
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usa
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lewtot184 Offline
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Originally Posted By B3RE
Originally Posted By lewtot184
nobody ever looks at push rod/rocker adjuster geometry. everybody is stuck in the old "2-3 threads" showing b.s.


Nobody? Everybody?
yes.

Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: lewtot184] #1830314
05/19/15 08:54 PM
05/19/15 08:54 PM
Joined: Jul 2013
Posts: 561
USA
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B3RE Offline
mopar
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USA
Originally Posted By lewtot184
Originally Posted By B3RE
Originally Posted By lewtot184
nobody ever looks at push rod/rocker adjuster geometry. everybody is stuck in the old "2-3 threads" showing b.s.


Nobody? Everybody?
yes.


Ok, lol. I am well aware of the effects of pushrod geometry. The question is, are the Mopar rocker manufacturers? I have yet to see one that has the proper design on the adjuster side of the rocker. And, before anyone trots out their favorite brand, that includes every "single shaft" system from ProForm, to T&D. Pushrod length plays a part, but the rest is in the rocker design. They're a bit difficult to change.


Mike Beachel

I didn't write the rules of math nor create the laws of physics, I am just bound by them.
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: Pstew] #1830853
05/20/15 03:32 PM
05/20/15 03:32 PM
Joined: Oct 2004
Posts: 354
Livonia Michigan
440dart Offline
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Livonia Michigan
another vote for Smith Bros.


Yes I live in Michigan, so there is still 1 light on
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: 440dart] #1831294
05/21/15 04:07 AM
05/21/15 04:07 AM
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Posts: 43,307
Bend,OR USA
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Cab_Burge Offline
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Originally Posted By 440dart
another vote for Smith Bros.
Smith Bros use to be five miles from me when they where here in Bend, there in Redmond ,OR now, 20 miles away shruggy I like and use the Manton heat treated adjusters for race motors that will see a lot of spring pressure and RPM up twocents Same thing on pushrods, Manton series 3 for high RPM and spring pressures up scopeI've burnt up some of Mantons pushrod tips do to a lack of oil, no failures with them though, I can't say the same thing about any other brand of pushrods or adjusters I've used work shruggy The choice is yours, buy the good stuff once or buy less than the best and have it fail at the worst posiible time whistlingshruggy


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 1.6 CRANE ROLLER ROCKERS VS 1.5 HS's [Re: MIKES_DUSTER] #1831295
05/21/15 04:09 AM
05/21/15 04:09 AM
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Bend,OR USA
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Cab_Burge Offline
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Are the Cranes your using thier extruded aluminum or the ductile iron 1.6? If the ductile iron RAS may be able to help you get them fixed shruggy


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)






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