FE-FC Holden Discussion Forum
June 28, 2024, 04:27:29 AM
Welcome,
Guest
. Please
login
or
register
.
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
News
: The FE-FC Holden Car Club of NSW are proud to host the
19th FE-FC Holden Nationals
. Check out the
announcement video
for more.
Home
Help
Search
Calendar
Login
Register
FE-FC Holden Discussion Forum
>
Technical Board
>
General Technical
(Moderators:
RET
,
Glenn 'Stinky' Stankevicius
,
gp
) >
Rocker Gear
Pages: [
1
]
Go Down
« previous
next »
Add bookmark
|
Print
Author
Topic: Rocker Gear (Read 2255 times)
KFH
qld-club
Senior Member
Offline
Model: FC
Posts: 683
Rocker Gear
«
on:
April 11, 2013, 10:24:27 PM »
0
Today I had occasion to take the tappet cover off of an EJ motor I have in the shed. I noticed that the posts supporting the rocker gear is totally different to the ones in my original "L" motor I am running. The supporting posts in the FC motor are the same height on each side where the bolts go through. The EJ has one side the same height as the FC while the other side of the in much shorter. Is this a later and improved design. Is it any better than the ones I am running in my FC. I was always under the assumption that they were all the same.
Keith
Logged
I was born with nothing and still have most of it left
ardiesse
nsw-club
Guru
Offline
Model: FC
Posts: 1307
Re: Rocker Gear
«
Reply #1 on:
April 12, 2013, 01:43:25 PM »
0
Keith,
Your EJ motor has FJ-to-early FC rocker gear on it. That's really odd. A recommended upgrade for FX-FJ owners has long been the late-model rocker gear with two long bolts on each pedestal. The early pedestals were quite prone to breaking because the stress of holding the valve springs open is taken on the short-bolt side.
Just for info's sake - where is the oil hole on the rocker arms - right on the top, or closer to the adjusting locknut? Similarly, what does the oil pipe fitting look like? Is it brass and hexagonal, or is it cast, with a screw in the side? Even among "early" rocker gear, there were variations.
Does the cylinder head on the EJ motor have provision for just a temperature sender, or a sender plus a heater outlet as well? If it's a "single-outlet" head, it may be that the motor has had an early-series head fitted, complete with early rocker gear.
Maybe you could read the date code off the head, and that'd put us all out of our misery . . . The date code will have a single digit, a letter, and two digits. I forget the order, but it will tell you when the head was cast.
Rob
Logged
Remember: if your Holden's not leaking oil, it doesn't have any.
ardiesse
nsw-club
Guru
Offline
Model: FC
Posts: 1307
Re: Rocker Gear
«
Reply #2 on:
April 12, 2013, 01:44:40 PM »
0
Keith,
One other thing. Does the engine number have a J prefix?
Rob
Logged
Remember: if your Holden's not leaking oil, it doesn't have any.
KFH
qld-club
Senior Member
Offline
Model: FC
Posts: 683
Re: Rocker Gear
«
Reply #3 on:
April 13, 2013, 06:15:22 PM »
0
Rob
Thanks for the information. I had a look today and found the following. No oil holes on the top of the rocker like my FC has. There is a brass hex where the oil feed goes into. The block has a J prefix. Casting info on head is H279 and there is no water outlet drilled into the front spot on the head.
Keith
Logged
I was born with nothing and still have most of it left
ardiesse
nsw-club
Guru
Offline
Model: FC
Posts: 1307
Re: Rocker Gear
«
Reply #4 on:
April 15, 2013, 05:36:06 PM »
0
Keith,
I think H279 means August 27th, 1959. So you have a 1962 block with a 1959 head and early FJ rocker gear. The FJs ditched the complicated cup-and-spring arrangement the FXs had, for a hex brass fitting. And then somewhat later the oil hole was moved to the top of the rocker to improve lubrication to the tip of the valve stems.
At some stage in the motor's history it went through a major rebuild, and was assembled with whatever was within easy reach.
Rob
Logged
Remember: if your Holden's not leaking oil, it doesn't have any.
Pages: [
1
]
Go Up
Add bookmark
|
Print
« previous
next »
Share this topic...
In a forum (BBCode)
[url=http://forum.fefcholden.club/index.php?topic=22740.0]Rocker Gear[/url]
In a site/blog (HTML)
Rocker Gear
Jump to:
Please select a destination:
-----------------------------
General
-----------------------------
=> General Board
=> FE-FC Holden Nationals
===> 2020 - Wangaratta - 18th FE-FC Holden Nationals
===> 2012 - Perth - 14th FE-FC Nationals
=> Events, Shows etc
-----------------------------
Technical Board
-----------------------------
=> Restoration Help
=> Modification Help
=> General Technical
-----------------------------
Galleries
-----------------------------
=> Members' FEs and FCs
===> Members' Other Vehicles
=> Project Cars - FEs and FCs Under Construction
===> Members' Other Vehicles Under Construction
=> Members' Completed FE-FC Projects
===> Completed Projects - Other Vehicles
=> Unreal Cars - Members' Artwork
=> Little Cars - Members' Model FEs and FCs
=> Original Advertisements, Brochures
=> Other Images
-----------------------------
For Sale and Wanted
-----------------------------
=> Cars For Sale
=> Cars Wanted
=> Parts For Sale
=> Reproduction Parts
=> Parts Wanted
=> Other Stuff For Sale
=> Other Stuff Wanted
=> Auction and Trade Links
Loading...