| From | Message |
Bill in Katy
Dodge Dakota
9/10/2001
10:31:26
|
 Subject: Roller rocker question for Eric
IP: Logged
Message:
Eric, I saw your post regarding the 1.7 roller rockers.
How "easy" was the install? Was it basically removing the valve covers and replacing the rocker arms? Did you have to replace the push rods also? Did they self adjust? What brand did you go with? Approximate cost?
I read somewhere (in a sales ad) that you can expect 30-35 HP increase??? Did you experience a notable increase??
Thanks
Bill
|
kota on 20s
Dodge Dakota
9/10/2001
12:42:39
| RE: Roller rocker question for Eric
IP: Logged
Message:
i went with the mopar 1.7's. i talked the sales guy down to $300 for the kit. they come with rockers, studs, guideplates, pushrods, and all the hardware. that is cheaper than just the crower rockers alone! ONE BAD THING...the MP rockers DONT COME WITH INSTRUCTIONS.
here is what you have to do. set the engine @ TDC on the compression stroke. unbolt the stock rockers, take out the pushrods, install the new studs (the jam nuts that come with the kit suck, i wen to kragen and bought new nuts) tighten to 20-25ft lbs of torque.
install new pushrods, slide rockers onto studs, and there are cirtain rockers that have to be tightend down when the enine is like this (i have to get my dads book and let you know the order). after thoes are tightend (set valve lash to zero and turn the nut 1/2 of a turn more). turn the crank 1 full turn (which would turn the engine 1/2 turn) and tighten the rest.
after that turn the engine over by hand to pump up the lifters and try to start it.
when i did mine, i didnt notice that much of a differance. latter i found out my cat was bad, and when the dealer replaced it...holly sh1t!! my truck MOVES now.
Eric
ps if any of this dosent make sence, let me know ill try to explane it better, im wrighting this fast because i need to go to work
|
4wDakota
Dodge Dakota
9/10/2001
13:06:26
| RE: Roller rocker question for Eric
IP: Logged
Message:
Where can you get the 1.7 Mopar Rockers (web site) I'm a little worried about my dealer and performance parts. I can't find any info on any rockers other than Crower. PLEASE HELP!
|
Bill in Katy
Dodge Dakota
9/10/2001
14:48:16
| RE: Roller rocker question for Eric
IP: Logged
Message:
I found the roller rocker kit on Mopar.com.
P5007404 1.7 ratio
P5249800 1.6 ratio
Is there much performance difference in the 1.6s and 1.7s? Why choose one over the other? Mopar apparently recommends HP (high performance?) springs with either rocker. Did you change springs or cam? Did you have to change/modify valve covers?
|
kota on 20s
Dodge Dakota
9/10/2001
19:06:00
| RE: Roller rocker question for Eric
IP: Logged
Message:
the stock rockers are a 1.6 ratio. the mopar 1.6 is a roller roller rocker. maby 8 hp because of the less friction than the stock rockers. the 1.7 actually opens the valves farther (like if you changed to a slitly bigger cam).
I did buy the MP springs and retainers, but have not installed them yet because i need to buy a spring compressor...the stock springs work good for the 1.7's though
i went with the MP valve covers because the look better, and also because i didnt want to spend the time and take out the baffles on the stock covers.
Eric
|
Hot RT
Dodge Dakota
9/10/2001
22:19:47
| RE: Roller rocker question for Eric
IP: Logged
Message:
If you buy the Crowers, they are stainless, not aluminum, much better longevity. Stainless does not "work harden" and fail down the road. You do not need to remove the baffles, just adjust them about a 1/4" and they work fine. To properly (and easily) adjust your new rockers do it this way. Use the exhaust opening/intake closing method. EOIC method. Turn the motor until the exhaust valve is just opening. Adjust intake rocker 3/4 turn, tighten. Turn motor until the intake valve is 1/2 to 3/4 closed, adjust exhaust rocker 3/4 turn, tighten. Do all rockers this way, adjust baffle, assemble motor, enjoy. Roller lifters need .045 to .060 preload. You get the proper preload with 3/4 turn, not the 1/2 everyone tells you to use. With 1/2 and the 1.7's you will get lifter noise. Good luck.
|
kota on 20s
Dodge Dakota
9/10/2001
23:01:36
| RE: Roller rocker question for Eric
IP: Logged
Message:
i only turned the nut 1/2 turn, but there is no clattering comming from the rockers. do i need to turn them another 1/4?
Eric
|
Hot RT
Dodge Dakota
9/11/2001
21:41:40
| RE: Roller rocker question for Eric
IP: Logged
Message:
If you have no noise, and it runs fine, don't worry about it. Just my advise on the install to use 3/4 turn.
|
Hersbird
Dodge Dakota
9/11/2001
22:13:12
| RE: Roller rocker question for Eric
IP: Logged
Message:
Try www.manciniracing.com they have almost all of the MP stuff listed with a good price. They don't list the 1.7:1's yet but I bet they have them. The complete kit on the 1.6:1 rollers, pushrods, guides, and studs is $278, the 1.7:1 may be the same. I would only use the 1.6's if you were changing the cam, otherwise the 1.7's and the stock cam probably isn't as good as the R/T cam but is easier to install and saves about $100 in parts. I think I'll go save the $100 and time and get 90% of the power in the cam with the 1.7:1's as well. I think I also want that sleeper look of the stock valvecovers and will keep them.
|
New Polara
Dodge Dakota
JOIN HERE
5/15/2009
06:03:47
| RE: Roller rocker question for Eric
IP: Logged
Message:
Hi
I am about to buy a 60's Mopar with a 413, roller rockers, but apparently it also has a noisy lifter, is it likely that particular rocker may have come loose.
I didn't think roller rockers made any noise.
Not too sure weather to drive the car back 5 hours or trailer it? or just a quick re tighten
What do you think?
Thanks, Grant
|
Avg Joe
Dodge Dakota
JOIN HERE
5/16/2009
16:59:25
| RE: Roller rocker question for Eric
IP: Logged
Message:
This thread is nearly 8 years old.
|
oellrichm
GenI
8/04/2009
10:33:55
| RE: Roller rocker question for Eric
IP: Logged
Message:
I bolted up a set of Harland Sharp 1.7's, took me about and hour total, they a pedestal mount self aligning super easy literaly unbolt oe's and bolt on new ones. just keep in mind you will need prybar to break the baffles out of the stock valve cover. Mine have been in about month I like em' :)
|
eddie
Dodge Dakota
JOIN HERE
4/18/2010
00:37:08
| RE: Roller rocker question for Eric
IP: Logged
Message:
do you have the 5.2 or the 5.9 liter oellrichm i am thinking about getting those harlends from summit and you say it is really easy do they self adjust or do i have to do anything when instalation is complete
|
eddie
Dodge Dakota
JOIN HERE
4/18/2010
00:43:47
| RE: Roller rocker question for Eric
IP: Logged
Message:
and well that take away the little ticking i hear under the valve cover on the passanger side
|
T.C.
Dodge Dakota
JOIN HERE
6/22/2010
10:13:44
| RE: Roller rocker question for Eric
IP: Logged
Message:
eddie, my 318 did same little ticking noise on passenger side, i installed the 1.7 harlandsharp RR's on about a month ago and it doesn't tick anymore so yeah it does
|
| | P 1 |
|
Post a reply to this message:
Username Registration: Optional
All visitors are allowed to post messages
|
