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Offline SteveoSTR

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Rear suspension linkage seized
« on: April 23, 2018, 09:34:07 AM »
So Im slowly getting my 13 STR back on the rod after having been written off and doing those jobs that you can only do when its not your primary mode of transport.

Ive removed the rear suspension linkage to marvel at the lack of grease the triumph mechs have applied.

One of the needle bearings is fine and despite only having crusty grease residue, moves freely and Ive greased and repacked it. The other side however is seized solid and looks like it has corrosion on it. The metal sleeve that goes into the needle bearing also looks rusty AF.

Firstly, does anyone have any tips how to remove rusty needle bearings because I cannot get this side to shift.

Secondly, is there any salvaging them or is it a trip down the the triumph dealership to order a new set?

Cheers


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Offline Green_Ninja

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Re: Rear suspension linkage seized
« Reply #1 on: April 23, 2018, 10:34:35 AM »
As you have it apart replace both bearings no point doing the job again later. The get the old bearings out apply heat to the linkage rod around the bearing mount as it should expand slightly making it easier to get the bearing out.

Offline SteveoSTR

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Re: Rear suspension linkage seized
« Reply #2 on: April 23, 2018, 11:59:22 AM »
*Originally Posted by Green_Ninja [+]
As you have it apart replace both bearings no point doing the job again later. The get the old bearings out apply heat to the linkage rod around the bearing mount as it should expand slightly making it easier to get the bearing out.

Cheers Green_Ninja.

Super bodge-it, but I only have a cooking blowtorch...do you reckon that would be enough to get a bit of heat to it??


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Offline Green_Ninja

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Re: Rear suspension linkage seized
« Reply #3 on: April 23, 2018, 03:44:07 PM »
*Originally Posted by SteveoSTR [+]
Cheers Green_Ninja.

Super bodge-it, but I only have a cooking blowtorch...do you reckon that would be enough to get a bit of heat to it??


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you could give that a try no reason it shouldn't work, other option is, if you cook on gas, use one of the gas rings on your hob.

Offline adiepage

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Re: Rear suspension linkage seized
« Reply #4 on: April 23, 2018, 10:12:45 PM »
*Originally Posted by SteveoSTR [+]

>> Secondly, is there any salvaging them or is it a trip down the the triumph dealership to order a new set? <<

Cheers


May I suggest that, once you have the bearings out, you check around to see if there's a specialist bearings supplier local to you?  There should be a code somewhere on the bearing(s) you've removed and this can be referenced by the supplier for the full specification.  They should then be able to offer you a range of manufacturers  and usually at considerably lower prices (often for a considerably better product) than the dealer prices.

Worth a thought.

Regards,

Adie

Offline Tomspurs

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Re: Rear suspension linkage seized
« Reply #5 on: April 24, 2018, 06:45:03 PM »
You could put the part in the oven and that way it will get even heat. The bearing should just fall out as the rust will crack and the part will expand. If for any reason it still does not come out...try heating it in the oven again, then with oven gloves hold the part and spray with Rostov (Wurth product) or Loctite Freeze release or sinilar....don't get your eylashes close to it and spray away from you as it might catch light momentarily. I find this releases the most stubborn of parts.
As for bearing companies....I agree that your should take your bearings there and get a decent SKF bearing or similar at a fraction of the cost of a Triumph copy part (these will only be SKF or any other decent make as only bearing companies make bearings and NOT Triumph  :028: 

Wurth product here:
https://www.amazon.co.uk/Wurth-Rost-Off-Ice/dp/B002Y9IN9A
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Offline SteveoSTR

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Re: Rear suspension linkage seized
« Reply #6 on: June 11, 2018, 03:47:46 PM »
Thanks for all the responses guys. I managed to get the bearings out by getting them in the oven and then lightly tapping them. Fell right out.

I managed to source a local company for the new needle bearings...next step is pressing the bearing into the dogbones. Anyone recommend a good way of doing it without a vice?

Is there some combination of nuts and washers that I can do myself? Or do we reheat in the oven and drop them into place??

Cheers

Steve


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Offline vayduh

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Re: Rear suspension linkage seized
« Reply #7 on: June 11, 2018, 04:14:28 PM »
Two methods I've used in the past:

Correctly sized socket and a wide faced hammer.

Threaded bar with two pieces of plate and two bolts.  One for the bottom and one for the top and then just use the top bolt to drive the plate down and the bearing home.  Threaded bolt through the bearing.  Washers would also work instead of the plate.

Offline Googs

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Re: Rear suspension linkage seized
« Reply #8 on: June 11, 2018, 07:22:14 PM »
Freeze the new bearings and heat the link again. Should drop in :028:

Offline Tomspurs

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Re: Rear suspension linkage seized
« Reply #9 on: June 14, 2018, 10:52:49 PM »
...Yes, get the oven back on and they will drop right in to the heated part....don't heat the bearings though  :007:
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