Moorron
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 posted on 26/3/08 at 09:42 PM |
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go go or no no
Ok i will confess i am not an engine expert. So i need to know if im wasting my money and time, possible doing it or should be ok on the
following...
Cracked the head on my CBR1000F engine (ran out of water, should have sorted the leak!). However tonight looking into the engine with the head off i
have found a noticable scour mark on cylinder 3's wall. I can feel it with my nail too. The engine was burning oil so im sure it was this.
'IF' i took the spare engine apart and swapped the cylinder block with my current one but left the original pistons in am i loking for
trouble? The spare block looks fine and still has vissable hooning in them. I cant use the spare pistons to keep them matched as i have naffed the
rings on them when having a play! lol
So, can i just swap the cylinder block round and hope the old pistion wear into it? Would save me over £100!
Thanks.
Sorry about my spelling, im an engineer and only work in numbers.
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DIY Si
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| posted on 26/3/08 at 09:44 PM |
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Pistons do not wear. Or at least they shouldn't! It's the new rings that do the bedding in and create the seal. I'd probably suggest
a re-hone and new rings using what ever pistons you have attached to a set of rods.
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ch1ll1
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| posted on 26/3/08 at 09:45 PM |
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can you not buy a new set of piston rings and hone your block ?
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froggy
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| posted on 26/3/08 at 10:04 PM |
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i bought a complete cbr1000f with some panel damage and a mint engine for £350 ,i would get another engine and save yourself a few quid
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Stu16v
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| posted on 26/3/08 at 11:26 PM |
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quote:
Originally posted by froggy
i bought a complete cbr1000f with some panel damage and a mint engine for £350 ,i would get another engine and save yourself a few quid
Agreed. They just are not worth taking apart - the gasket sets are almost the price of another engine!
Dont just build it.....make it!
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Moorron
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| posted on 28/3/08 at 02:34 PM |
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Hi there, too late ive ordered some bits now! I didnt get another engine because i would not know its condition so may fit it all and then find out
its pants. As i have turbo charged mine im looking at atleast a good new oil pump. Other thing is there are different head types on the engines and
this makes it harder to find mine being the oldest type.
Good news is my engine is the earlier FJ model and the gasket sets are £30 making it cheap to do. But i am now have another problem, my spare head has
one snapped manifold bolt in it, i cant get it out even with an extraction kit! What can i do? grrrr! 
Sorry about my spelling, im an engineer and only work in numbers.
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Coose
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| posted on 28/3/08 at 02:42 PM |
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Just make sure that the piston out of the damaged bore isn't also scored...
Re. the damaged stud - there are places that can remove them by spark erosion, though I don't know how the parent metal will cope being cast
ali. Have a search round Google and ask. Or, you may be able to get it drilled and tapped by someone with a milling machine.
Spin 'er off Well...
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triumphdave
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| posted on 28/3/08 at 03:38 PM |
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quote:
Originally posted by Coose
Just make sure that the piston out of the damaged bore isn't also scored...
Re. the damaged stud - there are places that can remove them by spark erosion, though I don't know how the parent metal will cope being cast
ali. Have a search round Google and ask. Or, you may be able to get it drilled and tapped by someone with a milling machine.
Sparking out the stud will not affect the cast ali.As above drilling out the center of the stud and re-tapping is also an option.
If you always do what you have always done you will always get what you have always got
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