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Car is '84 Carrera 3.2 - 915 gearbox. Gearbox was rebuilt by previous owner about 6k miles (11years!) ago. Syncho dog teeth and sliding sleeves on 1st-4th gears and full set of synchro friction rings.

About 2k ago, had the Seine gateshift installed as the vagueness was a pain, and hard to get 2nd.

It has the rubber boot, with a leather boot over that (and a notch out of boot for the Seine spring).

In last 1k has had new clutch, flywheel, omega spring. Also has new engine and gearbox mounts, as well as clutch release fork and pin, clutch pilot bearing etc.

More recently, have had the Wevo PSJ fitted, along with changing from Swepco to Motul Motlygear.

I think the Seine and the double boots are causing getting 1st /2nd a right pain - it needs a lot of force to push to left to get the gears. I ease in once across. When gearbox warm, it can be very good changing gear - or a pain. I know it's not a G50, but think it is being held back as-is. Arguable, the Seine should just come off - but am concerned that without the some type of spring self centring, an over enthusiastic gear change could be to 1st not 3rd.😢

Am considering getting a Wevo classic shifter and dumping the Seine as it it seems oversprung - or just really difficult to get the adjustment right.

Any thoughts? Not sure if the tower can be reused as was drilled (?)/tab welded for the Seine.

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So a few obvious things.... before you fitted the Seine and apart from vagueness did it get second gear and others ok?  If so then the gearbox sounds basically ok.  If not then the rebuild may not have been a good one.  Try removing the boots to see if that helps.  Is it worth checking adjustment again?  It sounds strange that it is sometimes ok changing gear when warm and sometimes not.  Not sure if this ramble helps.....

Forgot to say that I love my Wevo but it won’t make a bad gearbox shift well

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2 minutes ago, Ian Comerford said:

So a few obvious things.... before you fitted the Seine and apart from vagueness did it get second gear and others ok?  If so then the gearbox sounds basically ok.  If not then the rebuild may not have been a good one.  Try removing the boots to see if that helps.  Is it worth checking adjustment again?  It sounds strange that it is sometimes ok changing gear when warm and sometimes not.  Not sure if this ramble helps.....

Forgot to say that I love my Wevo but it won’t make a bad gearbox shift well

It seems the gearbox was rebuilt, but the various rubber parts degraded over time (coupler bushings etc.), so I had those replaced.

When I got it, 2nd was difficult, then much improved with initial works.

And actually the recent change was a Stomski coupler not a Wevo PSJ. Before that, the comment was "mid gear shaft linkage found to have significant play".

Good point that maybe it is as simple as bad adjustment, Could run with the boots for a bit and see if any difference.

Which Wevo do you have? Is it the lever/shifter or the gateshift on the box?

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I’d remove boots and double check adjustment, get the basic bits right.  I’ve got the classic and it’s a lovely piece of equipment, adds much more precision to gear selection.  

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I have two 915 box cars, one with a Siene and one with a Wevo classic. There is no discernable difference between the two I notice, based on back to back driving.

If you have an issue it will not be solved by changing from a Siene to a Wevo.

Unless the previous owner was a very experienced 915 gearbox expert with access to a number of specialist tools I would be very suspicious.

Did you get copied of any receipts for very expensive components? Suspicious if not, when you spend such a large amount on parts you would tend to keep the receipts.

The professional labour cost of rebuilding a 915 is usually less than the VAT on the parts bill.

Sorry to be negative, but honest comments based on personal experience.

Mark

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2 hours ago, SilverWT said:

I have two 915 box cars, one with a Siene and one with a Wevo classic. There is no discernable difference between the two I notice, based on back to back driving.

If you have an issue it will not be solved by changing from a Siene to a Wevo.

Unless the previous owner was a very experienced 915 gearbox expert with access to a number of specialist tools I would be very suspicious.

Did you get copied of any receipts for very expensive components? Suspicious if not, when you spend such a large amount on parts you would tend to keep the receipts.

The professional labour cost of rebuilding a 915 is usually less than the VAT on the parts bill.

Sorry to be negative, but honest comments based on personal experience.

Mark

OK, this is good to know. Unless there is an issue with the Seine install itself (possible?), then maybe an adjustment or gearbox work was needed.

I've PM'd you the name of the shop that did the rebuild. It was just over GBP 1.8k in 2008. It seems the initial rebuild lost 3rd gear after 300 miles, and a subsequent rebuild was carried out.

Edited by Carrera32TargaSp

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23 hours ago, Carrera32TargaSp said:

...then maybe an adjustment or gearbox work was needed.

It seems the initial rebuild lost 3rd gear after 300 miles, and a subsequent rebuild was carried out.

Checking everything in the linkage is adjusted spot on makes sense as a starting point.

Rebuilding after just 300 miles is not a good sign!

 

Mark

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