Quick question

[Ncdan]

On an 07 Calvin does the transmission oil have to be serviced separately from the motor oil. I realize the rear end is separate. Thanks in advance for info

[Testarossa]

Yes. Separate compartments, different oil types. Motor oil vs gear oil. You're trolling, right?

From the Harper's website FAQ:

Q 9. What weight and how much oil do I use in the transmission, rear end and engine?

A. For most all Moto Guzzi's engines we recommend Valvoline multi-viscosity 20/50 engine oil for the summer (55 degrees or above) and 10/40 for winter use (below 55 degrees).

The transmission and rear end use Hypoid 80/90.

The transmission takes about 1 qt and the rear end about 1/2 qt. Engine takes approx. 3 qts.

You should consider adding Moly to the rear drive. Use ATF oil in your forks.

Be aware that some of the popular oils have too much detergent and create to much foam which causes crankcase pressure at high RPM. The result is that the oil will foam and cause oil to blow out the vent hose.

If you are looking for a synthetic oil click here for more info.  Redline
Note: On the 2003 California's with hydraulic lifters you will need to use 5W40 oil. Mineral or synthetic.

[ken farr]

Maybe not.

As I recall, my Honda's used the same oil, engine and trans.  I don't think there was a separate drain for the transmission.

...but then again, I can't remember Thursday, so who knows....


kjf

[lorazepam]

Maybe not.

As I recall, my Honda's used the same oil, engine and trans.  I don't think there was a separate drain for the transmission.

...but then again, I can't remember Thursday, so who knows....


kjf

Considering there is a dry plate automotive style clutch between the engine and transmission on my Calvin, it is a pretty safe bet they use different lubricants and have separate drain and fill points.
The Honda has a dramatically different clutch/transmission set up than the Guzzi.

[oldbike54]

 Dan , obtain a manual .

 Ken , we've had this discussion before , Moto Guzzi isn't Honda .

 Dusty

[Tom]

Oh....goody!  An oil thread.  Gear lube oil for trans. and motor oil for the engine.

[Cam3512]

YES. Gear oil in the tranny and rear drive.  If you still have that original brick of an exhaust crossover, the drain plug in located directly above it.  There's also another drain plug at the rear of the tranny, but that's really hard to reach.  Do yourself a favor and buy an H-Pipe crossover.  GuzziTech 2 piece is best.

[Tom]

IIRC, the owner's manual says to drain gear lube over the middle muffler.  Let it drip into a pan.  Nothing about cleaning the mess left on the exhaust system before operating the bike. .

Yes.  Get a H pipe.

[Ncdan]

Maybe not.

As I recall, my Honda's used the same oil, engine and trans.  I don't think there was a separate drain for the transmission.

...but then again, I can't remember Thursday, so who knows....


kjf

[fotoguzzi]

IIRC, the owner's manual says to drain gear lube over the middle muffler.  Let it drip into a pan.  Nothing about cleaning the mess left on the exhaust system before operating the bike. .

 

or just cover it with some tin foil before draining.

[Tom]

 :1: OR Vaccusuck.   

https://www.autosportcatalog.com/products/liquivac-oil-extractor-eight-quart.html?gclid=EAIaIQobChMI4rbo-ZuZ1gIVTVt-Ch1BiQ33EAAYAyAAEgJ2XPD_BwE

[pete roper]

Post about 2002 five speed boxes have a second drain plug in the end case that I thought avoided the mess and stupidity.

Pete

[Tom H]

Ooohhh and oil thread and includes a tin foil hat, WooHooo.

Sorry.

On my '04, it has the second drain plug located at the rear of the trans like Pete said. It's easy to get to, but make sure your removing the correct drain plug sized bolt, it's the lowest one. The debate is on which is better to drain all the oil, the one above the cross pipe or the rear one.

When I drain from the rear bolt. When on the center stand, I jack up the bike from under the engine to tilt it back some and hopefully drain all the oil and any gunk out of the trans.

And the oil thread part: 85/90 dino GL4 not GL5. From what I understand, could be wrong, it's safer on the bearings. I use GL4 in my oldies and use it in my '04 as well. Unless the bearings have been updated to the non "plastic??" type cage, I would not run synthetic.

Hope this helps,
Tom

[Ncdan]

Thanks for the help guys. I've located all the drains, check holes and fill holes for all the components,motor,trans, and final. Don't worry, I ant going to ask what type of oils to go back with, lol, that would be like thumping a lions ball here, I can hear Pete now, lol;)