FE-FC Holden Discussion Forum
March 28, 2024, 09:32:03 PM *
Welcome, Guest. Please login or register.

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  
Pages: [1]   Go Down
  Add bookmark  |  Print  
Author Topic: Timing gears-quick question  (Read 4758 times)
Rabbitoh
vic-club
Senior Member
****
Offline Offline

Model: FE
Posts: 520


FE - 'King of Cars'


View Profile
« on: February 08, 2020, 04:35:48 PM »
0

Just swapped  out the fibre timing gear on my Grey motor’s camshaft and replaced it with a new steel one. Question; Does the existing steel timing gear on the crankshaft need to be swapped out for the new one supplied in the kit? Or, if the gear backlash is within tolerance (.003”-.004”), can I leave it on the crankshaft?
Thanks.
Logged

Fortius Quo Fidelius 1966; Saints' 2nd in 2024?
Bunnies' 22nd in 2024?
ardiesse
nsw-club
Guru
*****
Offline Offline

Model: FC
Posts: 1288



View Profile
« Reply #1 on: February 08, 2020, 07:42:12 PM »
0

Check the condition of the crankshaft gear teeth on the drive side.  Generally you see wear marks and pitting on high-mileage motors; along with lots of backlash.  If the backlash is within spec, then you're fine.

Excess timing gear backlash makes just about no difference to the way the engine runs.  In one case I had about 0.040" backlash.  Couldn't tell until I stripped the motor down.

Rob
Logged

Remember: if your Holden's not leaking oil, it doesn't have any.
my8thholden
nsw-club
Senior Member
****
Offline Offline

Model: FC
Posts: 812



View Profile
« Reply #2 on: February 09, 2020, 06:54:20 AM »
0

Rabbitoh ..If you have a new kit ,why not fit the new crank gear as well ,lot more work I know,but it is a mated pair after all ,don't forget your oil slinger ,and centralise oil seal before tightening timing cover ..Vern ..
Logged

these days i'm half as good for twice as long
ardiesse
nsw-club
Guru
*****
Offline Offline

Model: FC
Posts: 1288



View Profile
« Reply #3 on: February 09, 2020, 12:16:37 PM »
0

. . . oil slinger.  That reminds me.  File a notch in the slinger to clear the Woodruff key.  Then you don't have to remove the Woodruff key from the crank to take the camshaft out (next time).

Rob
Logged

Remember: if your Holden's not leaking oil, it doesn't have any.
Harv
Guru
*****
Offline Offline

Model: other Holden
Posts: 1318


View Profile
« Reply #4 on: February 11, 2020, 06:58:18 PM »
0

Agree with Rob - unless the crank gear is visibly stuffed, leave it alone.

Don’t forget to check that the oil squirter is clear. Spin the oil pump with a drill, and make sure the squirter nozzle squirts.

Mmmmm.... new steel timing gear. 10% chance you get that awesome supercharger whine for 50km before it beds in.

Cheers,
Harv

Logged
my8thholden
nsw-club
Senior Member
****
Offline Offline

Model: FC
Posts: 812



View Profile
« Reply #5 on: February 12, 2020, 07:13:50 AM »
0

There you go 3 heads are better than one ,another tip ,if you are using a dual lip oil seal in timing cover ,pack a bit of high melt grease between the lips ,if the inner lip does its job well ,the outer lip can "burn" ,the grease help to ease that problem..Vern
Logged

these days i'm half as good for twice as long
Rabbitoh
vic-club
Senior Member
****
Offline Offline

Model: FE
Posts: 520


FE - 'King of Cars'


View Profile
« Reply #6 on: February 12, 2020, 04:24:22 PM »
0

Many thanks for those responses, gentlemen. Very helpful indeed!
Cheers,
Chris
Logged

Fortius Quo Fidelius 1966; Saints' 2nd in 2024?
Bunnies' 22nd in 2024?
hsv-001
Senior Member
****
Offline Offline

Posts: 909


View Profile
« Reply #7 on: February 12, 2020, 04:58:53 PM »
0

A smear of copper based grease on the gears will help with the whine Harv speaks of .
Logged
Rabbitoh
vic-club
Senior Member
****
Offline Offline

Model: FE
Posts: 520


FE - 'King of Cars'


View Profile
« Reply #8 on: February 13, 2020, 12:19:26 PM »
0

Which grease is copper based?
Logged

Fortius Quo Fidelius 1966; Saints' 2nd in 2024?
Bunnies' 22nd in 2024?
Errol62
Guru
*****
Offline Offline

Posts: 1149


View Profile
« Reply #9 on: February 13, 2020, 01:56:51 PM »
0

Here is one https://www.ebay.com.au/itm/264373139951
But there are plenty available. Just look for copper based antiseize lubricant

Sent from my SM-A705YN using Tapatalk
Logged
Fraze
Full Member
***
Offline Offline

Model: FC
Posts: 202


View Profile
« Reply #10 on: February 14, 2020, 07:32:58 AM »
0

I just sarted my engine for the first time, and drove the car, after a full engine rebuild. I fitted a steel timimg gear but retained the original crank gear. The engine had a pronounced tinny rattle, more a fluttering noise at idle and at light throttle openings, but is quiet under power. i figured that it had to be the timing gears. I have now done 130miles and the noise has almost gone, down by a good 80%. I figure after another 100 miles or so it will be gone completely. This is ny FB ute.
When I did my FC sedan a few years ago I did the same, steel timing gear and original crank gear and never heard a peep from it, quiet from day one.
Just out of interest, Fraze
Logged
Rabbitoh
vic-club
Senior Member
****
Offline Offline

Model: FE
Posts: 520


FE - 'King of Cars'


View Profile
« Reply #11 on: February 14, 2020, 05:29:59 PM »
0

Looks like I will be leaving the existing crankshaft gear in place and using the copper based grease for insurance against a noisy running in period.
Thanks for the very helpful input, gents.
Chris
Logged

Fortius Quo Fidelius 1966; Saints' 2nd in 2024?
Bunnies' 22nd in 2024?
Pages: [1]   Go Up
  Add bookmark  |  Print  

Share this topic...
In a forum (BBCode) 
In a site/blog (HTML)

 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.028 seconds with 19 queries.