Increase Your Performance

Transcription

Increase Your Performance
Product Catalog
Rockerarm Shaft Assembly
Our task at hand was and is to provide superior valve train products capable of performing in applications where engine
speeds will exceed 10,000 RPM. When first approaching this project we found several issues needing attention. As we
worked through the design process we incorporated a solution to each one:
Rockerarm Geometry: Proper rockerarm geometry is critical in any engine assembly, especially with engine
speeds in excess of 10,000 RPM. There is nothing magic or mysterious about the subject, so instead of just a guess we
followed some basic rules and corrected the geometry of our Top Alcohol rockerarm assemblies.
Oil Transfer and Oil Leaks: We oil our assembly through the forth cam bearing as with most Chrysler type
blocks. From there, through a series of transfer passages, the oil fills both shafts. Radial passages provide full time oiling
to the intake and exhaust through the pushrod adjusting screw. Very tight clearances between the rockerarm stands and
the shafts help to eliminate the majority of the excess oil loss. Threaded plugs are used in each shaft to minimize the
possibility of pressure loss out the ends of the shafts. When changing over from the stock rockerarm assembly to the
Manton assembly you can expect an oil pressure increase of 10 to 15 pounds.
Strength, Stability and Rigidity: By adding the strength and support of a load screw at each rockerarm we
have more than doubled the strength of the assembly. By using heavy duty rockerarm shafts and attaching the shafts
to the stands with the load screws we have again strengthened the assembly. Each of the materials used have been
selected for their ability to do its specific job. The heat treat procedure and preparation for each material also has been
carefully selected. Bottom line is we have produced a finished product that has the ability to maintain valve train control
at engine speeds over 10,000 RPM. The service life of the valve springs and all of the valve train hardware can be
expected to improve.
We refer to our stands as Low and High ratio. This designation refers to the type of exhaust rockerarm that is to be used.
At this time, the most common exhaust rocker being used is the High Ratio (1.70 to 1). If you have a question about the
ratio that you are now using our tech staff will be happy to explain.
Part Number
RA 44030 RA 44040 RA 44039
RA 44049
Description
Rockerarm Assembly (Hi-Ratio)
Rockerarm Assembly (Lo-Ratio)
Rockerarm Assembly (Hi-Ratio w/ Reid Billet Exhaust Rockerarms)
Rockerarm Assembly (Lo-Ratio w/ Reid Billet Exhaust Rockerarms)
Additional intake rockerarm information: See page 3.
Each Complete Assembly Includes:
Stands (10), Shafts (4), Intake Rockerarms (8) Springs (16), Shims (64),
Load Screws (10), Flange Washers (10), Oil Plugs (4),
Rockerarm Adjusting Screws (16), Jam Nuts (16), Billet Exhaust Rockerarms (8).
2 Manton Rockerarms Tech: 951.674.2212
Intake Rockerarms
Top Alcohol / Pro Mod
We have taken an aggressive approach in the design of our new Top Alcohol and Pro Mod intake rockerarm. It has been
designed to be an upgrade replacement for the intake rockerarm being used today in the Top Alcohol, “A” Fuel and Pro
Mod categories.
Changes have been made in several areas to improve the performance of the valve train. This will help correct some
physical geometry issues that have come about through cylinder head changes over many years. The increase in
valve lift, increased spring pressure and installed height and changes in the location of the intake rockerarm shaft
have made it necessary to increase the valve side fulcrum length. This change locates the roller bearing closer to the
center of the valve which decreases the possibility of the bearing running off the edge of the contact patch. The fulcrum
length, on the pushrod side of the rockerarm, has also been increased which provides additional pushrod clearance. In
applications where a 7/16” diameter pushrod is being used it may be possible to increase the pushrod diameter to 1/2”.
This improves the stability of the valve train at engine speeds above 8500 RPM, and as high as 11,000 RPM.
Standard Features:
Oil Pressure fed 7/16” diameter adjusting screws.
Replaceable axel pin and roller assembly.
Valve side fulcrum length 1.675”.
Materials:
17-4 Stainless Lost Wax Investment Cast Body
H-13 Tool Steel Adjusting Screw
CPM1V Tool Steel Roller Bearing
9310 / Copper Masked and Case hardened Axel Pin
Aluminum Bronze Bushing
Part Number
RA 1701 RA 1702
RA 1801
RA 1802
RA 1851
RA 1852
Description
Intake Rockerarm Intake Rockerarm Intake Rockerarm Intake Rockerarm Intake Rockerarm Intake Rockerarm 1.70 to 1
1.70 to 1
1.80 to 1
1.80 to 1
1.85 to 1
1.85 to 1
Ratio with 5/16 Ball
Ratio with 3/8 Ball
Ratio with 3/8 Ball
Ratio with 3/8 Ball
Sales: 951.245.6565 Manton Rockerarms 3
Exhaust Rockerarms
This “NEW” Roller Tip Rockerarm has been added to our product upon
request of several engine builders and race teams. The standard
features of the Manton “I-Beam Rockerarm” were incorporated
into the design with the prime intention of increasing the strength,
stiffness, stability, and reliability required in the Top Alcohol and Pro
Mod categories which have engine speeds in excess of 10,500 RPM,
and A Fuel engines with extreme cylinder pressures.
Top Fuel engine assemblies produce cylinder pressures approaching 22,000
PSI. In this case the exhaust Rockerarm must be as strong as possible and at
the same time be stiff enough to maintain valve train control.
The Manton Roller Tip, I-Beam Rockerarm provides the highest strength to weight
ratio of any design configuration. Manufactured from a solid bar of 4340 steel, and heat treated to 305,000 P.S.I. This is
not a forging; this is a true billet Rockerarm providing perfect grain alignment and reliability consistency.
An oil passage supplies engine oil pressure to the adjusting screw which minimizes the possibility of pushrod galling.
This also limits unwanted and unnecessary oil spillage and oil pressure loss. The roller bearing has been increased in
size to a very large .5710” diameter and the pin to .2756”. The increased size is necessary to maximize the strength of
the roller which has become increasingly important as cylinder pressures continue to increase.
Part Number
Description
Application
RA 1520 RT
Top Fuel (1.52 to 1)
Top Fuel / funny Car using AJPE or Dechelis Stands
RA 1700 RT
Hi-Ratio (1.70 to 1)
Alcohol Head using Manton, BAE, Medlin Stands
RA 1520
Top Fuel (Reid)
Top Fuel / funny Car using AJPE or Dechelis Stands
RA 1600
Lo-Ratio (Reid)
RA 1700
Hi-Ratio (Reid)
Adjusting screws are sold separately. See section below.
Adjusting Screws
Top Fuel, Top Alcohol and Pro Mod rockerarm screws are produced
from H-13 tool steel and are heat treated, triple tempered and salt
bath nitrided. This screw is, by far, the strongest and most durable
rockerarm adjusting screw available today.
Features include: Rolled threads and a ball shape
design to be compatible with a cup depth that exceeds its
own radius.
RA 0825
RA 0826
RA 0830
RA 0850g
RA 0850
Part Number
Description
“Screw” 7/16 x 20 Thread 5/16 Ball with Pressure Feed Side Hole
“Jam Nut” 7/16 x 20 x .620 O.D. 12 Point
“Jam Nut” 7/16 x 20 x .700 O.D. 12 Point
Spark Plug Tubes
Small diameter spark plug tubes minimize the possibility of rockerarm to tube contact. These tubes are a
direct replacement for your existing tubes. Top and bottom ends are billet aluminum and the tube body is
4130 steel. The steel body will not dent or wear if the rockerarm rubs during operation. The tube diameter
allows for an additional .040 of clearance. (O.D. = 1.180).
Part Number
RA 0250
RA 0255
RA 0260
RA 0265
Description
Small Plug Hole Large Plug Hole
Large Plug Hole
Small Plug Hole
Application
Spark Plug Tube (BAE V, AJPE Muscle, Total Flow)
Spark Plug Tube (BAE VI & VIII, AJPE Muscle, Total Flow)
Spark Plug Tube (Custom Length)
Spark Plug Tube (Custom Length)
Top Fuel Billet Intake Rockerarms
Fulcrum Length 1.600”
We took on the task of producing a Billet Rockerarm to replace the existing
stainless steel casting. This design will outperform all it’s competition.
To stay in line with the existing valve train format being used by all
of the NHRA and IHRA Top Fuel and Funny Cars, at this time,
we have decided to maintain the design geometry all of us are
familiar with. This is to have a fulcrum length of 1.600.
The design incorporates an I-Beam design which strengthens
and stiffens the part, minimizing deflection, and additional
material has been added around the back side of the oil
pressure fed adjusting screw. This eliminates the possibility
of the adjusting screw from being torn away from the rocker
body.
The roller bearing axle pin has been designed to allow for easy replacement in the field. Adjusting screws are H-13 Tool
Steel and incorporate an oil band for an all pressure fed rocker body.
The Manton Billet Intake Rockerarm is produced from 4340 Chrome-Moly on a four axes milling center. The proven
Heat Treat procedure is the same used by Manton Pushrods.
The Manton Billet Rockerarm can be used in Top Alcohol / Pro Mod / Injected Fuel applications as a direct replacement
for Stage V rockerarms of the same ratio designation.
Part Number
RA 1609
RA 1659
RA 1709
RA 1759
RA 1809
RA 1859
Description
Billet Intake Rockerarm Billet Intake Rockerarm Billet Intake Rockerarm Billet Intake Rockerarm Billet Intake Rockerarm Billet Intake Rockerarm Application
(1.60 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
(1.65 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
(1.70 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
(1.75 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
(1.80 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
(1.85 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
Top Alcohol Billet Intake Rockerarms
Fulcrum Length 1.675”
The Manton Top Alcohol Billet Rockerarm is an I-Beam replacement for our 17-4 Investment Cast rockerarm, and is
primarily designed to be used on a Manton Top Alcohol Rocker Assembly.
The primary difference between our Fuel Rockerarm and our Alcohol Rockerarm is the fulcrum lengths. Fuel rockerarms
used on Dechelis, Medlin, AJPE, and BAE rocker shaft assemblies have a fulcrum length of 1.600”. The Manton Top
Alcohol Rockerarm has a valve side fulcrum length of 1.675”. This was done to allow the use of larger diameter pushrods
and correct the roller bearing contact point on the valve.
The I-Beam Billet Top Alcohol Rockerarm incorporates all of the same features as the Billet Top Fuel Rockerarm.
The roller bearing axle pin has been designed to allow for easy replacement in the field.
Adjusting screws are H-13 Tool Steel and incorporate an oil band for all pressure fed rocker bodies.
Part Number
RA 1807
RA 1808
RA 1857
RA 1858
RA 1907
RA 1908
Description
Billet Intake Rockerarm Billet Intake Rockerarm Billet Intake Rockerarm Billet Intake Rockerarm Billet Intake Rockerarm Billet Intake Rockerarm Application
(1.80 to 1 Ratio) w/ 7/16 x 20 x 5/16 ball
(1.80 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
(1.85 to 1 Ratio) w/ 7/16 x 20 x 5/16 ball
(1.85 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
(1.90 to 1 Ratio) w/ 7/16 x 20 x 5/16 ball
(1.90 to 1 Ratio) w/ 7/16 x 20 x 3/8 ball
Rockerarm Shafts
With valve train stability being our main concern we manufacture our shafts to be as stiff as possible. Our choice of
material is .250” wall thickness 4130 Chromoly steel. Each pre-heat treated shaft is prepared in a four axis milling
center, then center less ground undersize, hard chromed oversize, and finally finish ground to size. This leaves a
hard chrome surface .008“deep. Which provides an excellent wear protection in any application including use in your,
everyday driven, street Hemi. Our Fat Head shafts feature a new type of radial oil transfer passage which provides full
time oiling to the pushrod and adjusting screw. Without this new oiling feature the stock oiling passage is shut off as
soon as the rockerarm starts to open the valve. All of our shafts use a threaded plug to seal each end. This eliminates
any chance of an oil leak from worn or poor fitting O-rings.
Part Number
Description
RA 3010
Rockerarm Shaft (Intake) RA 3020
Rockerarm Shaft (Exhaust)
RA 3030
Rockerarm Shaft (Exhaust) RA 3050
Rockerarm Shaft (Exhaust) SizeApplication
.8725 x .250 Wall 426 Chrysler Hemi
.8725 x .250 Wall 426 Chrysler Hemi
.8725 x .250 Wall Fat Head using “Manton” Stands
.8725 x .250 Wall Fat Head using “Manton” Stands
.8715 x .250 Wall Fat Head using “BAE”or “Medlin” Stands
.8715 x .250 Wall Fat Head using “BAE”or “Medlin” Stands
Valve Spring Checking & Replacement Tool
(Leanders Bros.)
This valve spring tool comes to us from Ulf and Jörgen Leanders of Alfta Sweden. Being the 2008
Top Alcohol European Champions they understand the critical need to maintain the valve train
in their BAE powered funny car, and found a real need to check and replace valve
springs within the 75 minute rule. This is the device Jörgen designed to allow the
quick and safe removal of springs between rounds.
Four rocker stand attaching nuts on each head are replaced with four mounting
nuts which stay with the car. These nuts are the mounting hardware for
the spring tool. After a run you remove the valve cover and, in a mater of 30
seconds you install the tool assembly. Rotate the engine to allow the valve to
seat, insert the pressure gauge. Add pressure to the spring using the load
screw until the valve just moves. This will show the seat pressure of the
spring. If replacement is required, you simply replace the gauge with the
compression tool and remove the spring. Turn the load bar over and check
the second spring on the same cylinder. Move to the next cylinder and
repeat the process. Switch sides and check the other head.
You can check all of the valve springs on a Top Alcohol or Injected Fuel engine
in less than ten minutes.
Part Number
RA 0200
RA 0201
Description
Checking & Replacement Tool
Checking & Replacement Tool
Application
Top Alcohol / “A” Fuel using Manton, BAE, T&D Rocker Stands
Pro Mod using Manton, BAE, T&D Rocker Stands
Manton Pushrod Length Checking Kit
Chrysler Hemi Pushrod Checking Kit
Includes 4 pushrod length checking tools (10.000”
to 14.000”), with two 5/16 cup ends, two 3/8 cup
ends and two valve checking springs. A must for
all Top Alcohol / Top Fuel engine builders.
Part Number RA 0630
Tools
Part Number
RA 0630
RA 0120
RA 0125
RA 0102
RA 0103
Description
Chrysler Hemi Pushrod Checking Kit
Pre-Oiler (One Gallon)
Spark Plug Wrench T-Handle
MSO-68 Assembly Lube (4oz)
Ultra Gel Moly Lube (3oz)
Rockerarm Shaft Springs
Rockerarm shaft springs have been preferred by most over locating clamps. Springs are maintance free and allow you
to service the engine without the worry of leaving a screw un-torqued. Coiled from music wire they provide 7.5 pounds of
pressure at 1.950” height. This pressure is slightly higher than the common spring. Rockerarm shaft shims are stamped
from 1085 spring steel and heat treated for wear resistance.
Part NumberDescriptionApplication
RA 2200
Spring Kit (7 Long / 1 Short / 24 shims)
Chrysler Hemi (One Head)
RA 2201
Spring Kit (8 Long / 24 shims)
Fat Head (One Head)
RA 2210-16 Shims .876 x .1210 x .016 (16 each)
All with .875 Diameter Shaft
RA 2210-32
Shims .876 x .1210 x .016 (32 each)
RA 2210-48
Shims .876 x .1210 x .016 (48 each)
Hardware
Part Number
RA 0851
RA 0220-20
RA 0250
RA 0255
RA 2315-20
RA 2400-8
RA 2405-8
RA 2410-8
RA 2420-8
RA 2430-8
Description
Rockerarm Stand Nuts 3/8 x 24 12 Point
Rockerarm Stand to Head Studs 3/8 x 2.750 x Course & Fine Thread
Spark Plug Tubes (Fat Head - Stage V)
Spark Plug Tubes (Fat Head - Stage VI)
Rockerarm Stand Load Screws - 5/16 x 1.750 Socket Head (20 each)
Pipe Plugs 1/16 Pipe Brass - Socket Head (8 each)
Pipe Plugs 1/8 Pipe Brass - Socket Head (8 each)
Oil Restrictor 1/16 Pipe x .080 - Socket Head (8 each)
Oil Restrictor 1/16 Pipe x .125 - Socket Head (8 each)
Shaft Plugs 3/8 x 24 - Socket Head (8 each)
Part NumberDescriptionApplication
RA 0737
3/8” Flange Washer
Rockerarm Stand Mounting / Intake Manifold Washer
RA 0743
Rockerarm Stand Mounting / Head Bolt Washer
RA 0750
RA 0756
Shipping
Orders will be shipped UPS ground unless another shipping method is requested. Remember we are located in California so if you are located far from us you may want to request faster service. It may take a week for packages to reach the east coast. The carrier has full responsibility for all merchandise once the package leaves our facility. All damage or shortage claims must be reported to the carrier immediately.
Returns
No returns will be accepted without prior authorization. Any merchandise returned due to manufacturing defects or shipping errors will be
corrected at no charge.
Warranty
Manton Rockerarms will repair or replace at our discretion any item manufactured by our company that is found to be defective in material
design and/or workmanship. The invoice must accompany the merchandise to verify the purchase. We reserve the right to inspect any merchandise returned for misuse, abuse, modification or defective installation. All merchandise distributed by Manton Rockerarms is guaranteed
in accordance with the manufacturers own terms of warranty.
Terms
All orders are C.O.D., cashiers check or credit card unless prior arrangements have been made. We accept Mastercard and Visa only. If
you are an open account customer and you exceed 30 days to pay an open invoice you may be put on C.O.D. without notice. If you are a
customer approved for business or personal checks and your check bounces, you will be responsible for all check charges incurred by us and
you may also be put on certified check or credit card.
601 Crane Street, Building C • Lake Elsinore, CA • 92530
Tech Line: 951.674.2212 • Sales Line: 951.245.6565

Increase Your Performance

Transcription

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