stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Had a look at the gearbox. Numbers on it are 113 301 103 7016884 Not sure how to decode them. Does anybody know if it would be possible to view the gears using an endoscope through the drain plug? I also finished bolting everything I've got on, bar 3 brackets that I can't find homes for yet. Need to write a list of what's missing so I can ask the previous owner to find it all out. Main bits are the steering column and driveshafts. If not they're not a big issue to make. The closest it's been to being a complete car for 30+ years.      |
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mattiwagon
Part of things
Just got a work truck
Posts: 445 
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Apr 29, 2017 15:03:35 GMT
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Youve probably done this yourself but googled the numbers you have provided and the 113etc number is the original vw part number so I guess the 701 number is the serial for the rebuild. Wicked build by the way😄👍
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If they cant be nice f**k em!
84 low t25 panel 1.9td beige and rust combo
97 Goped Bigfoot G260RC with clutch conversion
97 Impreza turbo 2000 builders wagon 76k sold
04 Fabia vRs 50mpg pocket rocket
04 battered T5 pickup in blue!
Chainsaws lotsa Chainsaws
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Apr 29, 2017 15:27:10 GMT
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113 301 103
I believe that is the part number for the casing. Can't find reference to the 2ND number so far.
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Apr 29, 2017 16:30:50 GMT
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Yeah, the 113 number I believe is a part number for he case. The code normally starts with 2 letters and is stamped, here is mine (you can see the 13 number near the vw logo in raised numbers above it)  After that the numbers are the build date. It could be that they have removed the code when they rebuilt it, and restamped (?) |
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Apr 29, 2017 16:32:34 GMT
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Apr 29, 2017 16:49:47 GMT
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That's where the 2ND number is stamped.
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Apr 29, 2017 17:20:40 GMT
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So it's definitely a rebuilt box then....
Wonder if you could find out who rebuilt it from that number?
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Apr 29, 2017 17:53:39 GMT
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Looking at everything else on that car, I'd be really surprised if that box had stock VW gears in it.
If you don't want to open it up you can put the box in gear, and turn the input shaft and compare the number of revolutions on the in and output-drive shafts.
When you do that in every gear, you can get a rough idea of the ratio's
Make sure both driveshafts turn a equal amount, or the numbers wont mean anything.
But chances are this car would have a spool in it anyway...
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Apr 29, 2017 18:04:51 GMT
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Thats a good point , alot of time and thought seems to have gone into the rest of it . The only way i can see it being standard is if it blew up and thats the reason it was in bits , and this is a standard replacement . Seems unlikely though .
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Apr 29, 2017 19:04:10 GMT
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Looking at everything else on that car, I'd be really surprised if that box had stock VW gears in it. If you don't want to open it up you can put the box in gear, and turn the input shaft and compare the number of revolutions on the in and output-drive shafts. When you do that in every gear, you can get a rough idea of the ratio's Make sure both driveshafts turn a equal amount, or the numbers wont mean anything. But chances are this car would have a spool in it anyway... Yep the diff is locked up. I did a rough working out of the ratios when it was out of the car but can't find the paper I wrote it on so I'll have to do it again. |
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Apr 29, 2017 19:05:55 GMT
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Thats a good point , alot of time and thought seems to have gone into the rest of it . The only way i can see it being standard is if it blew up and thats the reason it was in bits , and this is a standard replacement . Seems unlikely though . I've got a inkling it was the engine that blew up. It was built with a 1500 Crossflow block originally and the pistons were too small for the Lotus block that came with it. The crank etc is good and standard size though and the pistons and rods that came with it seem fine so it's a strange one. |
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Apr 29, 2017 19:09:38 GMT
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Blew a piston then maybe ? Who knows ?
Cracking project anyway , good to see some proper old skool stuff .
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Apr 29, 2017 19:36:57 GMT
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Spend time to work out relevant info and then lose the piece of paper you wrote it on. Yep... I've done that too, a couple of times...  ( don't worry, you'll probably find it right after you've done all the work again... ) Awesome project, man. I love reading your posts about it. |
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Apr 29, 2017 19:54:43 GMT
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Spend time to work out relevant info and then lose the piece of paper you wrote it on. Yep... I've done that too, a couple of times... ( don't worry, you'll probably find it right after you've done all the work again... ) O Awesome project, man. I love reading your posts about it. You don't know the half of it. I've just spent 10 minutes messing with the gear mechanism because when I was turning the input shaft the wheels weren't turning, before I remember it's got no driveshafts in. |
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Apr 29, 2017 22:55:34 GMT
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^ bookmarked and watching - awesome project! Unrelated, one of my recent threads started "I know I've missed something obvious - can somebody tell me what I've missed?". It's not just you  Great work so far, keep the updates coming. |
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Last Edit: Apr 30, 2017 9:51:33 GMT by nomad
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Ring and pinions are available in 3 versions - 4.375:1 from a 1200 and 1300, 4.125:1 from a 1500 and 3.875:1 from a 1600. The last one is the strongest, but also the least common. There are aftermarket ones (3.44:1 springs to mind) but I don't think they were available when this car was built.
As it has no suspension and those axle/side plate combination things, I'm pretty sure it won't have a standard diff - much more likely to be a home-made spool.
There are a multitude of gears available for 1st through to 4th, depending on the year of the donor gearbox, and then there's the aftermarket stuff!
It's worth having a look on the shop talk forums in the transmission section.
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1968 Cal Look Beetle - 2007cc motor - 14.45@93mph in full street trim
1970-ish Karmann Beetle cabriolet - project soon to be re-started.
1986 Scirocco - big plans, one day!
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stealthstylz
Club Retro Rides Member
Posts: 14,960
Club RR Member Number: 174
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Are they all 1:1 4th gear do you know?
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No, I don't think any are. 0.89 are the most common IIRC, although some had 0.92 for some reason. Aftermarket gears get closer, for example I had a 1.31 fourth in my drag bug, lower than a standard 3rd gear!
The person I'd recommend for a rebuild would be Peter Englezos at Cogbox. He's not close to you (Middlesex), nor is he cheap, but he is good.
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1968 Cal Look Beetle - 2007cc motor - 14.45@93mph in full street trim
1970-ish Karmann Beetle cabriolet - project soon to be re-started.
1986 Scirocco - big plans, one day!
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Found this: www.ratwell.com/mirror/sandlizrd.baja.com/gears.htmMight be of some use, although I've no idea how accurate it is! EDIT: just been doing some more reading - you can find out the ring and pinion ratio by dropping out the drain plug under the difference and counting the teeth on the ring gear. 35 is for the 4.375, 33 is for the 4.125 and 31 is for the 3.875 (or 3.88 as they're often known as) |
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1968 Cal Look Beetle - 2007cc motor - 14.45@93mph in full street trim
1970-ish Karmann Beetle cabriolet - project soon to be re-started.
1986 Scirocco - big plans, one day!
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Also just been thinking about the age of the gearbox case, and if it's based on a 6V or 12V one. The starter motor hole should be bigger for the earlier 6V starter motor 16.5mm vs 13.6mm for the later 12V one.
Again, more thinking out loud - why would the standard VW starter be used? Does it have a VW flywheel inside the bell housing?
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1968 Cal Look Beetle - 2007cc motor - 14.45@93mph in full street trim
1970-ish Karmann Beetle cabriolet - project soon to be re-started.
1986 Scirocco - big plans, one day!
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