Oil sump alternative

GRiSO Capo Posts : 523 Join date : 2016-12-20

Hello all, quick question. Apparently something has damaged 2 of the cooling fins on the sump, and oil weeps from it. Very little, not enough to leave an oil pool under the engine, but enough to leave a greasy spot on the sump that reappears after I clean it. I noticed the original oil sump #976486 has been replaced by #879874 and I was wondering if its a straight swap?

GRiSO Capo Posts : 10704 Join date : 2013-05-29 Age : 67

It seems to be a straightforward supercession. No idea why the change but the only differences I know of apart from colour are from the earlier sump and spacer system and the later, post 2015 machines that use the Cali 14 sump.

Don Abbondio Posts : 6086 Join date : 2014-03-13 Age : 69

It might be able to be welding up, to use as a spare for when you get your new one.

I have a broken one from when I rode over a gutter, never did get it fixed, must look to that...

GRiSO Capo Posts : 523 Join date : 2016-12-20

Grazie mille mr. Roper!

Oz1200Guzzi wrote:: It might be able to be welding up, to use as a spare for when you get your new one.

I have a broken one from when I rode over a gutter, never did get it fixed, must look to that...

I have already asked around, seems no one does aluminum welding anymore. The only one in the vicinity technically capable refused because it took too much effort to change the gas or something.

GRiSO Capo Posts : 10198 Join date : 2013-09-30

motor-timothy wrote:: I have already asked around, seems no one does aluminum welding anymore. The only one in the vicinity technically capable refused because it took too much effort to change the gas or something.

How lazy! Maybe if you had gone in with a fist full of €100 bills he might have been more motivated...

Is JB Weld worth trying?

scratch

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Grignapoco Posts : 173 Join date : 2021-03-24

beetle wrote:: Is JB Weld worth trying?

If the crack is indeed small, since the sump does not get any stress on it and does not reach unbearable temperatures, I would indeed suggest JB weld. A failure of the weld would not be a huge issue since you are loosing very little oil. Just make sure to replace the part if you ever leave for a long trip away from your place, just for peace of mind. But for commuting or week-end fun you should be fine.
Be sure to clean the surfaces very well, including the inside of the crack itself!

Don Abbondio Posts : 6086 Join date : 2014-03-13 Age : 69

motor-timothy wrote:

Grazie mille mr. Roper!

Oz1200Guzzi wrote:: It might be able to be welding up, to use as a spare for when you get your new one.

I have a broken one from when I rode over a gutter, never did get it fixed, must look to that...

I have already asked around, seems no one does aluminum welding anymore. The only one in the vicinity technically capable refused because it took too much effort to change the gas or something.

To do it properly, the welder would have to bolt it, gasket side down so it wouldn't warp. There are probably others around - aluminium welding is de rigeur these days.

GRiSO Capo Posts : 1108 Join date : 2017-08-06 Age : 70

Properly cleaned, and applied, JB will last forever.

GRiSO Capo Posts : 583 Join date : 2016-12-20

Not knowing the answer to this so thought I’d ask; why not braze the aluminum ?
Would this add too much heat to the sump & likely distort it ?

Don Abbondio Posts : 6086 Join date : 2014-03-13 Age : 69

For aluminium, one must fill it with aluminium. Brazing is OK on steel though.

GRiSO Capo Posts : 1531 Join date : 2015-01-04 Age : 63

You could probably fill hole/crack with enough flux & a slightly lower mp Al alloy filler/solder BUT it looks like major skill skirting close to melting the job.

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