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General Category => General Discussion => Topic started by: bmc5733946 on May 31, 2021, 08:05:26 PM

Title: SP windshield
Post by: bmc5733946 on May 31, 2021, 08:05:26 PM

Does anybody have a sequence of assembly for SP windshield mounting screw installation? There are five pieces to the screw system, screw, trim washer, rubber grommet, washer, nut. Does the rubber grommet (really an o-ring) go between the windshield and fairing or does it go on the outside under the washer? I can conceive of it going in either place but I think it goes between fairing and shield because of the rubber strip around the sheild that keeps it from going against the fairing.

Illustration should be here:  https://guzzitek.org/parts_list/gb/1000/1000SP2_PL_Compil.pdf

Brian

Title: Re: SP windshield
Post by: guzzisteve on May 31, 2021, 08:35:58 PM

I have replaced a few on early SP's and if I remember correctly the oring goes like you say, in between shield & fairing.

Title: Re: SP windshield
Post by: bmc5733946 on May 31, 2021, 08:43:43 PM

Thanks Steve! I worked on a few but memory for that time of my life is dying out for some reason, maybe old age?

Brian

Title: Re: SP windshield
Post by: spmoto on June 01, 2021, 01:27:01 PM

O-ring goes under the trim washer which has a channel or grove that the o-ring fits into. I just went and checked mine to be sure. 

Title: Re: SP windshield
Post by: bmc5733946 on June 01, 2021, 02:45:39 PM

Hmmm! Thanks sp! I guess I have some discovery ahead since I don't have the original parts and was going to try to collect some odds and ends to make up an original fastening system. Further research will happen. I have some American sized orings, will have to see if I can find some trim washers that fit. I'm in no hurry, original parts seem to be scarce so I'm going on my own journey.

Brian

Title: Re: SP windshield
Post by: spmoto on June 01, 2021, 06:50:55 PM

The same set up was used on a lot of Guzzi of similar vintage like the 850 Le Mans 1,2 and 3. Try Moto Guzzi Classics, he may have a bunch. Or, you could stack a flat rubber washer under a flat washer. I think the whole idea is to help avoiding overtightening and causing stress cracks in the shield.
Steve

Title: Re: SP windshield
Post by: guzzisteve on June 01, 2021, 10:23:51 PM

Quote from: spmoto on June 01, 2021, 01:27:01 PM

O-ring goes under the trim washer which has a channel or grove that the o-ring fits into. I just went and checked mine to be sure. 

Thanks for helping old memories, I don't remember that oring on my LM3.

Title: Re: SP windshield
Post by: pehayes on June 01, 2021, 11:48:15 PM

Same system on the SPII.  That special washer is called a 'finishing washer'.  It has an interior concave design to accept the o-ring.  The o-ring is on the outside of the plastic windscreen and acts as a cushion between the finishing washer and the plastic.

Patrick Hayes
Fremont CA