1969 350 desmo cylinder head removal and refurbishment

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DBDBrian
Posts: 199
Joined: Mon Mar 30, 2015 11:29 pm

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby DBDBrian » Fri Nov 25, 2022 8:06 pm

A Goldstar acquaintance was complaining about the procedure to ascertain the correct thickness of the head gasket, which in effect is a shim.
I replied, you have obviously have never worked on a Ducati. :o
Brian
Made in England

Jordan
Posts: 1386
Joined: Fri Dec 24, 2010 11:29 am

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby Jordan » Fri Nov 25, 2022 10:44 pm

OK.
I arranged to go for a ride with a friend who had a Japanese bike.
He rode over to my place, and saw that I'd removed the head from my Ducati 350 Desmo.
I did that because I saw a worrying particle of what looked like melted metal stuck to the spark plug electrode, but there was nothing bad to see inside.
"Well, the ride's off" says my friend, thinking it were a lengthy job to put it together again.
"Not at all" said I, and the reassembled bike was started within 30 minutes.
My friend, who is a Honda-trained motorcycle mechanic, was astonished.
I confess that I had recently worked on the engine, so was practiced in the procedure.

DBDBrian
Posts: 199
Joined: Mon Mar 30, 2015 11:29 pm

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby DBDBrian » Sat Nov 26, 2022 12:09 pm

Perhaps you missed a vocation as a Ducati works mechanic Jordan, well done.
Brian
Made in England

HMBAtrail
Posts: 93
Joined: Wed Aug 16, 2017 4:07 am
Location: Indpls, IN

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby HMBAtrail » Sun Nov 27, 2022 2:01 pm

I've used Retrospeed a couple times in the past for cylinder head work. They come with a solid reputation, primarily in the Ducati twins.

https://retrospeed.net/

neal69duc350d
Posts: 18
Joined: Mon Oct 19, 2020 10:33 pm
Location: Wilmington, DE, USA

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby neal69duc350d » Tue Nov 29, 2022 1:25 am

Thanks for the recommendations. Will check out David Chrone and Retrospeed.

Eldert
Posts: 772
Joined: Sun Nov 01, 2009 3:23 pm
Location: Hazerswoude Rijndijk Netherlands

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby Eldert » Tue Nov 29, 2022 8:33 am

Hi Neal

if you supply the parts needed for a refurb. you will make it a lot easyer for a shop to do the work .

a jig or a fixture to hold the head would be a plus to

just buy guides and 2 valves from the Ducati vintage store or Lacey Ducati and go from there

Eldert

Duccout
Posts: 1287
Joined: Wed Feb 05, 2020 1:20 pm
Location: Essex UK

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby Duccout » Wed Nov 30, 2022 12:31 pm

Apparently Syd's are still in business - someone in the USA collected a rebuilt engine from them in mid-November this year.

neal69duc350d
Posts: 18
Joined: Mon Oct 19, 2020 10:33 pm
Location: Wilmington, DE, USA

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby neal69duc350d » Thu Dec 01, 2022 3:34 pm

Duccout wrote:Apparently Syd's are still in business - someone in the USA collected a rebuilt engine from them in mid-November this year.


Well as it turns out I was able to make contact with them -- they are just quite backed up from race-prepping bikes in the off season.

themoudie
Posts: 649
Joined: Sat Jun 14, 2014 12:44 am
Location: Scotland

Re: 1969 350 desmo cylinder head removal and refurbishment

Postby themoudie » Thu Dec 01, 2022 11:13 pm

That's always the way with anybody who has any idea about what they are doing. A lot of racers "race" and have no mechanical empathy! :twisted: As long as the bike is faster than anybody elses, they cross the line first, the bike falling apart after the line is not a consideration. Throw more cash at it, or build a new bike after the end of the season! :twisted:

Hope you get sorted.

Good health, Bill


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