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Author Topic: Steering head bearings  (Read 744 times)

cryospeed1

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Steering head bearings
« on: March 17, 2016, 10:58:59 am »
Hi I am well into the dismantling of my falcone prior to painting. On dismantling the forks the head bearings are shot. Both races and balls. Can anyone suggest a source of replacement please. I looked on Guzzi bits and could not find any. Thanks

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cryospeed1

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Re: Steering head bearings
« Reply #1 on: March 17, 2016, 03:50:19 pm »
Update spoke to Guzzibits and NLM but neither could help. NLM have given me details for Stein dense who I have e mailed. Guzzi bits offered to speak to one of their manufacturers if I get stuck. I went to simply bearings and thought I would go to taper bearings but there is no exact match for my dimensions of 27 x50.
Further dismantling has revealed worn swinging arm bushes so again anyone know of a supplier of these. Thanks.
The hub bearings were us but fortunately replacements were easy to source.

cryospeed1

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cryospeed1

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Re: Steering head bearings
« Reply #3 on: March 21, 2016, 03:32:05 pm »
Head bearings now located and are on the way after taking out a second mortgage. I got them from Holland. The swinging arm bushes are on order from Italy. The bike is now stripped and been degreased prior to painting. There are a few battle scars. There is some singing to the paintwork so I wonder if it has been in a fire. Can anyone advise the size of drive chain needed so I can shop around a bit for one.   

newfalcon

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Re: Steering head bearings
« Reply #4 on: March 23, 2016, 10:31:00 am »
bonjour je viens seulement de voir les messages les roulements pour la fourche disponibles chez mts ricambi 15 de haut et 27 x 50
la chaine ne doit pas faire plus de 24,5 mm de large sinon ça passe pas
 ;)

cryospeed1

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Re: Steering head bearings
« Reply #5 on: April 10, 2016, 10:14:26 am »
Thanks for the information. The head bearings arrived in genuine Moto guzzi packaging. Sadly after shelling out £136 it was 4 cups rather than 4 cones all slightly different sizes. None of them are the correct size and one of them was rusty. They are now back with the supplier in Holland and there has been no word despite it being a week since they got them. The new swinging arm bushes arrived from Italy and after some dramas with a blow lamp and a big hammer and drift the old ones were removed and the new ones are in place. The bike is all painted just need the head bearings now. If the Dutch cant provide the right ones I have found that Pirner in germany do a modified taper bearing to fit. It is less than half the price too. It is just a shame I didnt go here first.

newfalcon

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Re: Steering head bearings
« Reply #6 on: April 12, 2016, 07:12:03 pm »
bonjour hier j'ai remonté l'embrayage de mon moteur falcone 570 avec des ressorts renforcés (longueur 50 mm) au lieu de 46 d'origine ça devrais mieux encaisser le surplus de puissance   :)
en attendant le chassis side car cet hivers  ;)

banquo

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Re: Steering head bearings
« Reply #7 on: April 16, 2016, 10:49:52 am »
Been offline after a couple of weeks in China, where the forum of the Mighty Falcone is apparently considered subversive enough to be blocked, along with Facebook and Google....
i still have the stock bearings installed in mine, but understand that the taper roller conversion is based on stock SKF bearings, that are ground down to fit the recesses for the stock cups.
The kit is available from Pirner, and cost about 89 Euros back in 2014:

Instruction sheet from Pirner, courtesy of Kater
« Last Edit: April 30, 2020, 05:33:30 pm by banquo »

cryospeed1

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Re: Steering head bearings
« Reply #8 on: April 21, 2016, 07:28:27 pm »
The bearings that were in were knackered as the hard face hard worn through in places. The dutch have given me a full refund so I am now in the process of ordering the taper bearings from Pirner. They are about 100 euro with the postage. They seem to have quite a bit of NF stuff.

banquo

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Re: Steering head bearings
« Reply #9 on: April 26, 2016, 10:56:28 pm »
Let us know how you get on with them!

cryospeed1

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Re: Steering head bearings
« Reply #10 on: May 05, 2016, 04:52:27 pm »
The taper bearings from Pirner arrived yesterday and were fitted today. The bearings are FAG. There is a bottom seal in the kit and I am very pleased with it. I chilled the outers in the freezer and warmed the taper bearing so it would slide easily down the steering stem. I am now stripping off the fork seal holders in order to replace the seals. Guzzibits are supplying them.

banquo

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Re: Steering head bearings
« Reply #11 on: May 06, 2016, 10:18:45 am »
Success! Sounds like it's well worth the effort. There are progressive springs available for the front as well, while you're in there. Can't remember where, but possibly also Pirner.