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Crankshaft Timing Gear #58417 Tue Mar 28 2006 03:59 PM
Joined: Mar 2004
Posts: 31
B
Bob Galet Offline OP
Wrench Fetcher
I tried removing the crankshaft timing gear with a puller and PB Blaster but it wont budge. Any suggestions?

Re: Crankshaft Timing Gear #58418 Tue Mar 28 2006 05:15 PM
Joined: Feb 2006
Posts: 112
D
Darin367 Offline
Member
machine shop,,,has to be pressed..

Re: Crankshaft Timing Gear #58419 Tue Mar 28 2006 06:19 PM
Joined: Mar 2004
Posts: 31
B
Bob Galet Offline OP
Wrench Fetcher
Theres no way to pull it off with a puller with the crank in the block?

Re: Crankshaft Timing Gear #58420 Tue Mar 28 2006 08:07 PM
Joined: Dec 2005
Posts: 26
S
stewbud Offline
Apprentice
Bob,

I pulled the gear from the fron of my 1942 216 motor so I could get the camshaft out. After breaking my old gear puller, I gently heated the gear - trying to keep the heat to the gear and not the shaft.

Some taps with a punch to allow the liberally applied penatrating oil to soak in eventually yielded a seperate gear and shaft. Also try applying and releasing teh pressure from the gear puller a few times - this seemed very effective.

The gear on the end of the cam does need to be pressed off. Good luck.


Stewart

Re: Crankshaft Timing Gear #58421 Tue Mar 28 2006 11:40 PM
Joined: Dec 2005
Posts: 2,558
B
bowtietim Offline
Shop Shark
You'll have to press it off.Those cam gears are relly tuff . I am amazed how tuff they are !!!!


"A house is built with boards and beams,a home is built with love and dreams"

Look deep before you leep !!!

"Everything is Everything"

"If I say a mouse can pull a house,Hitch him up"

My 1951 3100 Chevrolet
My 1951 Chevrolet Suburban Carryall

Re: Crankshaft Timing Gear #58422 Wed Mar 29 2006 02:53 AM
Joined: Sep 2003
Posts: 343
C
cujo8 Offline
Member
I just removed the crank and cam gears in my shop using gear pullers, penetrating oil, propane torch, impact wrench, and a brass drift. They did not come willingly, but they did come off w/o damage. I had the crank gear under a great amount of tension from the gear puller, heated the gear all the way around with the torch, applied penetraiting oil to the seams and then I struck the gear with the brass drift and the gear just popped loose. I removed the cam gear by placing cam gear on top of the opened jaws of my vice with the cam pointing towards the floor and heated the gear w/ the torch again. Then I used a large brass drift and a hammer to drive the cam out of the cam gear. Good luck and wear a face shield and gloves in case the puller gives way before the gear! eek

Jim


1954 GMC 1/2-ton Longbed
1971 Pontiac LeMans Sport
Re: Crankshaft Timing Gear #58423 Thu Mar 30 2006 03:12 PM
Joined: Mar 2002
Posts: 8,878
truckernix Offline
Master Gabster
When I was telling my machinist how proud I was after pulling my crankshaft timing gear, he told me that I had done it the hard way. He said the way to do it is to give it some sharp raps with a chisel, between the teeth right over the keyway. Apparently those gears are so hard that they can be cracked quite easily. Apparently that location causes maximum stress on the gear.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!
Re: Crankshaft Timing Gear #58424 Thu Mar 30 2006 08:01 PM
Joined: Aug 2005
Posts: 50
T
texczech Offline
Wrench Fetcher
drill a hole through the gear. then use a chisel to split it on top of the drilled hole between the teeth.

Re: Crankshaft Timing Gear #58425 Mon Apr 03 2006 05:34 PM
Joined: Mar 2004
Posts: 31
B
Bob Galet Offline OP
Wrench Fetcher
I avtually got my drill and drilled out the backing plate hole just large enough to slide it over the gear! Wont be having that problem again!

Re: Crankshaft Timing Gear #58426 Mon Apr 03 2006 08:42 PM
Joined: Jun 2005
Posts: 887
N
NM51 Offline
Shop Shark
I chiseled mine off, since I was replacing it anyhow I didn't care if it came of in one piece, just that I didn't damage the cam/crank.

Fact is that you don't need to remove the cam gear to get the cam out, but to get the backing plate away from the crank you do need to get that one off, unless you just want to have the machine shop do it for you while they have the crank.


'51 Chevy 1/2 ton w/'62 261, HEI, offy, fentons, dual carter/webbers, t-5 & 12 bolt posi
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