Hi again to you all, having purchased this 750 where the chain had previously snapped and has put quite a large hole in the top casing, I have the engine split anyway for refurbishment, and I’m wondering about fitting a different top half crankcase (same era) as a remedy. Would there be problems in doing this, re alignment and sealing etc?
Thank
Martyn.
Top Half Crankcase
- PaulD738
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Re: Top Half Crankcase
I think your going to have to buy a complete crankcase as they where machined as a matching pair in the factory. It’s unlikely that a different half would mate up correctly.
If you want to keep your original engine number you should be able to have yours repaired.
If you want to keep your original engine number you should be able to have yours repaired.
They're rubbish them Jap bikes lad they won't last five minutes! you want to get yourself a nice Royal Enfield!
A quote from my old dad
I started out with nothing and I’ve got most of it left!
A quote from my old dad
I started out with nothing and I’ve got most of it left!
- canaletto5
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Re: Top Half Crankcase
Ideally you would want to keep both halves of the clam as original as they have lived together for over forty years but, by necessity, I have used differing halves on three of my bikes and have encountered no problems. Kev
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Re: Top Half Crankcase
Get it welded.
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Re: Top Half Crankcase
Thanks for your thoughts chaps. There is not much history with the bike, so I don’t know if it’s the original engine, or not! Probably not, upon stripping the engine, I found various problems, so I think it’s been apart many times, and not put back together very well either!!
I do have another top half, so I’ll see how it fits together. Not too sure how I will know tho! Until startup!
Also not sure if the original can be welded, it’s quite a large gap, 60mm x15mm. A plate/cover welded over, might look odd.
Cheers
Martyn.
I do have another top half, so I’ll see how it fits together. Not too sure how I will know tho! Until startup!
Also not sure if the original can be welded, it’s quite a large gap, 60mm x15mm. A plate/cover welded over, might look odd.
Cheers
Martyn.
- canaletto5
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Re: Top Half Crankcase
It looks like the first two digits of this engine crankcase set is 47 which would make it right for a 74L. Have a chat with the seller
https://www.ebay.co.uk/itm/Suzuki-GT750 ... 0009.m1982
Kev
https://www.ebay.co.uk/itm/Suzuki-GT750 ... 0009.m1982
Kev
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Re: Top Half Crankcase
That's only a pinholeTino996 wrote:Thanks for your thoughts chaps. There is not much history with the bike, so I don’t know if it’s the original engine, or not! Probably not, upon stripping the engine, I found various problems, so I think it’s been apart many times, and not put back together very well either!!
I do have another top half, so I’ll see how it fits together. Not too sure how I will know tho! Until startup!
Also not sure if the original can be welded, it’s quite a large gap, 60mm x15mm. A plate/cover welded over, might look odd.
Cheers
Martyn.