OzVMX Forum

Clubroom => General Discussion => Topic started by: Kenneth S (222) on August 31, 2011, 05:33:17 am

Title: A really dumb question about an old CZ!
Post by: Kenneth S (222) on August 31, 2011, 05:33:17 am

Hi Fellow VMXers,

My mate bought a 74 CZ trail bike which was imported from Sunny but broke California for us by a great bloke, Darren at midlife Crisis Imports, very professionally I might add. After cleaning all the gunk, I recon at least 10-15 years worth, out of the tank and carb and replacing the battery and the petrol cock, we successfully fired it up last night preparing for it's inaugural ride at Louee this weekend.

Now for the dumb question.

I can't find where to put the gear oil in! The engine casing has 2 tubes, one on each side of the carb sticking up out of the top of the casings but as far as I can see, no little cap to unscrew to pour the gear box oil in.

Did the Czechs discover some secret way of building sealed gear boxes that never need oid or am I really dumb?

Title: Re: A really dumb question about an old CZ!
Post by: 09.0 on August 31, 2011, 06:19:39 am

The tubes go into the case via a screw in bolt with the vent tube in it. Unscrew that and pour away! Or just tip it all over the bike. Some should find it's way in. ;D

Title: Re: A really dumb question about an old CZ!
Post by: Kenneth S (222) on August 31, 2011, 08:07:01 am

Funny! Do you know how much it might take?

Title: Re: A really dumb question about an old CZ!
Post by: Canam370 on August 31, 2011, 08:16:29 am

Fill until the oil begins to come out of the bolt hole on the side of the L/H engine cover (I might add that you need to remove the bolt first ;D) which is a oil level hole. 'Measured' with the bike vertical.

Title: Re: A really dumb question about an old CZ!
Post by: VMX60 on August 31, 2011, 10:46:49 am

The left side vent on top of the gearbox plate 17mm size is the oil hole the r/h is the vent to the flywheel no oil goes there

Oil qty about 650cc to the level hole on the L/h case

Castrol mtx
belray gearsaver
Auto trans

Will do the job

Title: Re: A really dumb question about an old CZ!
Post by: bishboy on August 31, 2011, 01:26:23 pm

Bit off topic, but how much did shipping cost?

Title: Re: A really dumb question about an old CZ!
Post by: shortshifter on September 01, 2011, 08:49:17 am

Nice one 090 :D you need a bloody tiny funnel.

Title: Re: A really dumb question about an old CZ!
Post by: Kenneth S (222) on September 02, 2011, 04:54:50 am

Thanks guys, much appreciated. VMX60 you obviously know these models. Bishboy, $900 from SoCal, his containers leave from San Francisco. He brought another in from the East Coast for me for $1400. He is an enthusiast himself, has his own truck in the US and brings them into Melbourne assembled, does all the paper work. I had mine shipped from Melb to Syd with a local bike carrier for $250 each.
Off to Louee this weekend...WooHoo