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  #1  
Old 28-05-2010, 10:24 AM
kiffer38 kiffer38 is offline
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Default roller bearing crank repairs ?

is there anybody who knows if if can get the crank on my bike repaired, its a gsx1100 roller bearing crank, took it out for a blast yesterday and noticed the motor was getting a bit tight, when it cooled down it seized up split the motor this morn and found the crank is all out of line !! not a clue what to do now, dont realy want to buy a new engine i was wondering if any 1 knows any companies who can straighten or rebuild my crank ?
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Old 28-05-2010, 11:29 AM
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v8_trike v8_trike is offline
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Quite a way from you, but they do a good job.


http://www.cleasbypes.co.uk/
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Old 30-05-2010, 04:51 PM
triker triker is offline
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ive used these in the past and found them very good
http://www.sep-kegworth.co.uk/
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Old 30-05-2010, 07:53 PM
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John Hopkins John Hopkins is offline
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The only thing that can cause the crankshaft to go out of line is if the main bearings are shot, you are looking at about 100 each, plus the oil seals plus all the big end bearings, any rebuild shop will change the lot so you are looking at megabucks, they will probably grind the journals as well, and if the crank has gone out of line you are probably looking at cylinder damage...Unless this engine has sentimental value maybe you should look for another lump to stick in.

If someone thinks this is crap, speak up and save this chap some dosh.

John
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Last edited by John Hopkins; 30-05-2010 at 09:34 PM.
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Old 30-05-2010, 08:04 PM
bill? bill? is offline
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Quote:
Originally Posted by John Hopkins View Post
Unless this engine has sentimental damage

John
eh? apart from that, I agree if the crank bearings have gone (and the crank is running at an odd angle) then the pistons will have worn on one side or t'other causing it to seize up.
sounds like a complete engine rebuild to me. but then what the feck do I know. but at least its not winter and you won't be freezing yer fingers off if the garage.
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Old 30-05-2010, 09:35 PM
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Quote:
Originally Posted by bill? View Post
eh? apart from that, I agree if the crank bearings have gone (and the crank is running at an odd angle) then the pistons will have worn on one side or t'other causing it to seize up.
sounds like a complete engine rebuild to me. but then what the feck do I know. but at least its not winter and you won't be freezing yer fingers off if the garage.
Oops.

John
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Old 30-05-2010, 09:38 PM
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Quote:
Originally Posted by kiffer38 View Post
dont realy want to buy a new engine
http://shop.ebay.co.uk/?_from=R40&_t...All-Categories

One on ebay for 50 at the moment...Could be worth a look...

John
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Old 30-05-2010, 10:22 PM
kiffer38 kiffer38 is offline
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everything else is in perect shape, just the crank went tits up due to giving it far to much welly, the crank isnt bent, its just started to come apart1 of the big end journals has moved out from the crank web itself, never seen it happen before, the bearings are fine, con rods are fine, cases are fine, just the crank is coming apart, any hows i think i may have found a replacement crank.
thanks for all the suggestions. might just get the new 1 welded up, just in case
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Old 30-05-2010, 11:04 PM
Gregg1100 Gregg1100 is offline
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Default roller bearing crank repairs ?

Hi,
I had a Z250 roller bearing crankshaft rejuvenated by SEP at Kegworth a few years back. Because you have to split the crank to renew the roller bearings, the crank will come back all sorted when bearings have been replaced.
They also sorted out a bent crankshaft on a Z650 for me. I had bought the Z650 from a mate who had dropped it on the left side of bike. The alternator whizzed round like a drunk, but SEP sprayed new metal on the alternator taper, and ground it to the correct size . Both jobs very reasonabley priced, with good turn around times.
Hope this helps,
Greg
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  #10  
Old 31-05-2010, 08:29 PM
kiffer38 kiffer38 is offline
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sod it, cant be arsed to rebuild engine, its now for sale in classifieds !
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