Go Back   Ford Mustang Forums > Mustang > Classic Mustang > Classic Tech

Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.

You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.

Classic Mustangs Tech Forum

Technical discussions specific to 1964-1967, 1968-1970, and 1971-1973 Classic Mustang. Discuss all tech related to in-line six cylinder and V8 powered Vintage Mustangs here.

Classic Forums | Classic Talk | Classic Tech | Classic Pictures | Introductions | Mustang Tech | Mustang Lounge 


Closed Thread   Post New Thread
Unread 08-04-2010   #1 (permalink)
mlstang is offline Apprentice


Joined: Feb 2009
Posts: 79 Threads: 37
 mlstang's Country Flag
Louisville   Kentucky
mlstang is on a distinguished road
Default 1967 Mustang 289, Help with roller rockers

I have a 67 coupe with a rebuilt 289. I have about 2000 miles since rebuild. I have Pro form roller rockers that make to much noise for me. They have been adjusted and are a little better. Do the roller rockers just make noise or did I get the wrong ones, any suggestions?
mlstang is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Sponsored Links
Advertisement
 
Unread 08-04-2010   #2 (permalink)
Pig Muffin is offline GT Member

Classic Member


Joined: Sep 2009
Posts: 1,555 Threads: 90
 Pig Muffin's Country Flag
Amelia / Cincinnati   Ohio
Pig Muffin is on a distinguished road
Default

Quote:
Originally Posted by mlstang View Post
I have a 67 coupe with a rebuilt 289. I have about 2000 miles since rebuild. I have Pro form roller rockers that make to much noise for me. They have been adjusted and are a little better. Do the roller rockers just make noise or did I get the wrong ones, any suggestions?
they should have 0 valve lash which means there is always contact somewhere and there should not be any noise.
__________________
1968, 302 .030 / Comp Cams Magnum 270h #31-414-3 501 lift @ .050 dur 224/224
Comp Cams Magnum Lifters and Pushrods Comp Cams 1.6 Full Roller Rockers
Edelbrock RPM heads (2.02 / 1.60) / RPM Air Gap
Holley Street Avenger 670 carb
Edelbrock 110gph Fuel Pump
Cloyes Street True Roller Timing Chain / Professional Products Harmonic Balancer
MSD Pro billet Dizzy, 6AL Box, Blaster 2 Coil
Flowtech Long Tube Headers
Pig Muffin is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Unread 08-04-2010   #3 (permalink)
Sick467 is offline GT Member

Classic Member
V6 Member


Joined: Aug 2009
Posts: 2,038 Threads: 141
 Sick467's Country Flag  View Sick467's 69 photos
Sedalia   Missouri
Sick467 is on a distinguished road
Default

I am assuming they are making the traditional tapping noise that comes from rockers that are NOT tightened down enough. Make sure your studs are not pulling out from the head, which would act like a rocker not tightened enough. Also make sure the roller tip is centered (both ways) on the valve stem. Close is good, noise is not likely to accurr from being off center unless it's very close to the edge. This problem would be from the wrong size pushrods and/or the wrong rockers. Make sure the rockers where installed correctly. I know that some can be installed with the pivot section turned 180 out.
__________________
Ride On,
Noel

"I'll fix it or break it, Guaranteed!"
Sick467 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Unread 08-04-2010   #4 (permalink)
silver69 is offline GT Member

Classic Member
5.0L Member


Joined: Feb 2005
Posts: 1,502 Threads: 11
 silver69's Country Flag  View silver69's 8 photos
Pinson   Alabama
silver69 is on a distinguished road
Default

go to the comp cams website and you can read thier tech notes on how to properly adjust the valve lash if that does not fix it you probably have a weak lifter or too strong of a valvespring.
silver69 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Unread 08-04-2010   #5 (permalink)
.boB is offline Made Member

Classic Member
V6 Member
S197 Member


Joined: Feb 2008
Posts: 1,207 Threads: 8
 .boB's Country Flag  View .boB's 9 photos
Colorado Springs   Colorado
.boB is on a distinguished road
Default

Cheaper roller rocker arms (like Pro-Form) tend to be noisy. I don't know why, they just are. As I see it you have three choices.

1. Live with it. Turn up the stereo.

2. Replace with comp cams steel magnum rockers.

3. Install a thicker cast alum rocker cover.
__________________
.boB
'08 V6 Pony
'65 Monster FFR Cobra
.boB is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Unread 08-04-2010   #6 (permalink)
mlstang is offline Apprentice


Joined: Feb 2009
Posts: 79 Threads: 37
 mlstang's Country Flag
Louisville   Kentucky
mlstang is on a distinguished road
Default

Thanks for the response I forgot to mention that they get louder after the engine is up to operating temp if that means anything. Starts out sort of quiet.
mlstang is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Unread 08-05-2010   #7 (permalink)
Lizer is online now SHELBY GT 350 Member

Classic Member


Joined: Dec 2009
Posts: 5,847 Threads: 100
 Lizer's Country Flag  View Lizer's 10 photos
Kalamazoo   Michigan
Lizer is on a distinguished road
Default

I'm not trying to be snide, but most of the problem is your roller rockers being Pro Form. They are notorious for being noisy and many problems are associated with them. If you search around on the internet you'll see what I'm talking about. In fact, the company that built my long block refuses to use Pro Form parts, and if a customer insists, they will not warranty that engine (they normally have a 70,000 mile/7 yr warranty).

If you want an affordable, full-roller rocker, I'd suggest looking at Scorpion. They are a little cheaper than the others but are still recognized as a quality product.
Lizer is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Unread 08-05-2010   #8 (permalink)
mlstang is offline Apprentice


Joined: Feb 2009
Posts: 79 Threads: 37
 mlstang's Country Flag
Louisville   Kentucky
mlstang is on a distinguished road
Default

Thanks for the response. I,ll get new rockers.
mlstang is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Unread 08-05-2010   #9 (permalink)
PaulS is offline Made Member


Joined: Mar 2009
Posts: 1,815 Threads: 3
 PaulS's Country Flag
Seattle   Washington
PaulS is on a distinguished road
Default

Just mail me the Proform rockers....
They either need press-in studs or good locks on the adjuster nuts. There is nothing in the rockers to make noise.
send them to:
__________________
1966 Coupe
351W
Top Loader
rebuilt, rewired, modified for slalom and hill climb
No racing - just a fun car built by and for me.
Project in process
PaulS is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Sponsored Links
Advertisement
 
Closed Thread   Post New Thread



Thread Tools



Mustang Photos
Mustang Links    Top Sites    RSS    Link To Us    Add to Favorites    Archive    Terms of Use    Site Rules    Privacy    Contact    Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2011 All Auto Enthusiasts Network

Search Engine Friendly URLs by vBSEO 3.5.2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172