Author Topic: How to pull tap bearings off the crankshaft CS20 twin  (Read 876 times)

frogmobile

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How to pull tap bearings off the crankshaft CS20 twin
« on: March 17, 2023, 01:37:26 AM »
Hi! Also how to pull off the timing gear off the crankshaft (heat?)
Engine: CS 20 twin cyl driving 12 kw 230v Gene
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frogmobile

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Re: How to pull tap bearings off the crankshaft CS20 twin
« Reply #1 on: March 17, 2023, 09:42:35 AM »
Done! I had to grind  the timing gear in order to make 2 ledges so I could catch it in the press. The crankshaft is 35 kg and if it were 1 cm longer I would not have been able to set it on the press. I just wish I didn't waste 2h trying to get the bearing with the hammer and chisel.
Engine: CS 20 twin cyl driving 12 kw 230v Gene
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sirpedrosa

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How to pull tap bearings off the crankshaft CS20 twin - GRIND??? WTF
« Reply #2 on: March 17, 2023, 12:04:57 PM »
Frog,

Grind the timing gear???

Take a look at the wright and simple tool!

Cheers
VP
By order of firing up:
Bernard 18A - 1968 (mama's water pump - year of my birth)
Petter PAZ1 - Jun 1967, 3HP, sn 416xxxx
Petter PAZ1 - Nov 1979, 3HP, sn 425xxxx
Lister 12/2 - 12651227, the pearl!
Deutz MAH 914, 1952 - Zündfix in chamber and go (7Mai2023).

frogmobile

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Re: How to pull tap bearings off the crankshaft CS20 twin
« Reply #3 on: March 18, 2023, 02:51:22 AM »
The timing gear on the cr'shaft was fornicated hence the big repair. All timing gear had to be replaced. Grinding down the gear gave me access to the back of the bearing, enough to catch on the plates on the press then puch down the shaft. The rest was a song. Today I just replaced the new gear and the bearing, in the press. I had to make a long pipe to slide over the shaft to reach the gear/bearing. Phew!
Engine: CS 20 twin cyl driving 12 kw 230v Gene
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"Vegan" is an old Aboriginal word, it meant "lousy hunter"

broncodriver99

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Re: How to pull tap bearings off the crankshaft CS20 twin
« Reply #4 on: March 18, 2023, 01:48:19 PM »
Would you mind sharing where you found a new gear? I have a crank with a damaged gear and never could find a new one.

frogmobile

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Re: How to pull tap bearings off the crankshaft CS20 twin
« Reply #5 on: March 19, 2023, 04:53:55 AM »
If you are in Australia "Old Timer Engines" in Australia. I don't know about the rest of the worls. India or UK your best bet. In desperation you may cast them in PHOSPHOR Bronze using the old ones as model (allow for some shrinkage) I made a repair time ago on my Camshaft gear with bronze and it was still here in percfect nick. One tooth was broken but not on my repair! If you are in Australia and have no workshop try the Men's Shed for machining your cast.
Engine: CS 20 twin cyl driving 12 kw 230v Gene
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"Vegan" is an old Aboriginal word, it meant "lousy hunter"

frogmobile

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Re: How to pull tap bearings off the crankshaft CS20 twin
« Reply #6 on: March 19, 2023, 04:56:46 AM »
Bronze repair after machining
Engine: CS 20 twin cyl driving 12 kw 230v Gene
On Biodiesel

"Vegan" is an old Aboriginal word, it meant "lousy hunter"