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Type4 conversion flange
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josh
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PostPosted: Fri Mar 04, 2005 5:47 pm    Post subject: Type4 conversion flange Reply with quote

People have been asking about the 411/412 cooling air intake flange used in type4 engine into type3 conversions so I took some pics.

http://thesamba.com/vw/forum/album_page.php?pic_id=194940
http://thesamba.com/vw/forum/album_page.php?pic_id=194941
http://thesamba.com/vw/forum/album_page.php?pic_id=194942
http://thesamba.com/vw/forum/album_page.php?pic_id=194943

Note the O/D of the flange is much smaller than the I/D of the type3 boot so the boot will have to be altered or the space filled. I've heard that the 411/412 boot will fit the flange and the type3 body but I can't confirm.

The 411/412 fastback use a different intake. My understanding is the fastback part will not work.
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67FastyRSA
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PostPosted: Sat Mar 05, 2005 1:35 am    Post subject: Reply with quote

would be nice to have the dimentions of a 411/412 boot although i think that they might be hell to try and find..... Just a word of warning.... if you are going to try and clamp the type 3 boot on the flange as it is, it WILL tear. The original type 3 boots are made from natural rubber which is very brittle. I think it would be better to try and modify the boot on the flange side and use rubber cement to seal it where you modified it.
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blankmange
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PostPosted: Sat Mar 05, 2005 5:30 am    Post subject: Reply with quote

just thinking out loud, so bear with me:

can you cut the cooling flange off the Type 3 tin and weld it on the Type 4 tin, giving you the correct shape for both the rubber boot and the cooling duct on the Type 3 body?

again, just suggesting... but couldn't this be done?
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BryanM
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PostPosted: Sat Mar 05, 2005 7:42 am    Post subject: Reply with quote

blankmange wrote:
just thinking out loud, so bear with me:

can you cut the cooling flange off the Type 3 tin and weld it on the Type 4 tin, giving you the correct shape for both the rubber boot and the cooling duct on the Type 3 body?

again, just suggesting... but couldn't this be done?


I have a intake tin that someone did that to.
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blankmange
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PostPosted: Sat Mar 05, 2005 8:18 am    Post subject: Reply with quote

BryanM wrote:
blankmange wrote:
just thinking out loud, so bear with me:

can you cut the cooling flange off the Type 3 tin and weld it on the Type 4 tin, giving you the correct shape for both the rubber boot and the cooling duct on the Type 3 body?

again, just suggesting... but couldn't this be done?


I have a intake tin that someone did that to.


and - how did it turn out?
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BryanM
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PostPosted: Sat Mar 05, 2005 8:34 am    Post subject: Reply with quote

blankmange wrote:
BryanM wrote:
blankmange wrote:
just thinking out loud, so bear with me:

can you cut the cooling flange off the Type 3 tin and weld it on the Type 4 tin, giving you the correct shape for both the rubber boot and the cooling duct on the Type 3 body?

again, just suggesting... but couldn't this be done?


I have a intake tin that someone did that to.


and - how did it turn out?


I havent bolted it up yet but it looks pretty good, I'll have to get pics
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blankmange
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PostPosted: Sat Mar 05, 2005 8:41 am    Post subject: Reply with quote

BryanM wrote:
blankmange wrote:
BryanM wrote:
blankmange wrote:
just thinking out loud, so bear with me:

can you cut the cooling flange off the Type 3 tin and weld it on the Type 4 tin, giving you the correct shape for both the rubber boot and the cooling duct on the Type 3 body?

again, just suggesting... but couldn't this be done?


I have a intake tin that someone did that to.


and - how did it turn out?


I havent bolted it up yet but it looks pretty good, I'll have to get pics


yeah - pics would be good; I have the parts to do this when I get to the Type 4 conversion, so was interested in how it all works out...
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tristessa
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PostPosted: Sat Mar 05, 2005 10:50 am    Post subject: Reply with quote

blankmange wrote:
can you cut the cooling flange off the Type 3 tin and weld it on the Type 4 tin, giving you the correct shape for both the rubber boot and the cooling duct on the Type 3 body?

Problem is, that Type 4 piece that Josh posted pics of isn't tin. It's plastic. I'd *love* to find someone who can weld metal to plastic. Very Happy

Seriously, though, if I can ever get myself motivated again .. I was working on something like that, but in fiberglass. Didn't get too far before I had to pack everything up to move and haven't had the ambition to get back into it yet..
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blankmange
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PostPosted: Sat Mar 05, 2005 11:06 am    Post subject: Reply with quote

tristessa wrote:
blankmange wrote:
can you cut the cooling flange off the Type 3 tin and weld it on the Type 4 tin, giving you the correct shape for both the rubber boot and the cooling duct on the Type 3 body?

Problem is, that Type 4 piece that Josh posted pics of isn't tin. It's plastic. I'd *love* to find someone who can weld metal to plastic. Very Happy

Seriously, though, if I can ever get myself motivated again .. I was working on something like that, but in fiberglass. Didn't get too far before I had to pack everything up to move and haven't had the ambition to get back into it yet..


I see what you are saying; the fan assembly on the Type 4 motor sitting on my bench is metal, so welding the T3 flange onto it shouldn't be that tricky, other than cutting it to size...
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Air_Cooled_Nut
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PostPosted: Sat Mar 05, 2005 11:13 am    Post subject: Re: Type4 conversion flange Reply with quote

josh wrote:
http://thesamba.com/vw/forum/album_page.php?pic_id=194943

...

Until I saw the LAST image I had no reference as to what I was looking at.

I think a fiberglass conversion part would be a good idea.
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tristessa
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PostPosted: Sat Mar 05, 2005 5:29 pm    Post subject: Reply with quote

blankmange wrote:
I see what you are saying; the fan assembly on the Type 4 motor sitting on my bench is metal, so welding the T3 flange onto it shouldn't be that tricky, other than cutting it to size...

Ah, welding steel to aluminum .. that's also a neat trick I'd like to see. Very Happy
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Russ Wolfe
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PostPosted: Sat Mar 05, 2005 6:19 pm    Post subject: Reply with quote

tristessa wrote:
blankmange wrote:
I see what you are saying; the fan assembly on the Type 4 motor sitting on my bench is metal, so welding the T3 flange onto it shouldn't be that tricky, other than cutting it to size...

Ah, welding steel to aluminum .. that's also a neat trick I'd like to see. Very Happy


Welding steel to Magnesium, That a trick I would like to see only on the 4th of July.
That fan housing is magnesium.
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PostPosted: Sat Mar 05, 2005 7:07 pm    Post subject: Reply with quote

Russ Wolfe wrote:
Welding steel to Magnesium, That a trick I would like to see only on the 4th of July.That fan housing is magnesium.

Oooh! Even better! Twisted Evil Laughing Twisted Evil I was *guessing* that it's aluminum since that's what the T4 case is made of..
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blankmange
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PostPosted: Sat Mar 05, 2005 8:09 pm    Post subject: Reply with quote

tristessa wrote:
Russ Wolfe wrote:
Welding steel to Magnesium, That a trick I would like to see only on the 4th of July.That fan housing is magnesium.

Oooh! Even better! Twisted Evil Laughing Twisted Evil I was *guessing* that it's aluminum since that's what the T4 case is made of..


sounds like a job for JB Weld!!!
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Mr. Bubblehead
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PostPosted: Sat Mar 05, 2005 8:19 pm    Post subject: Reply with quote

The type 4 fan housing is aluminum.
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Russ Wolfe
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PostPosted: Sat Mar 05, 2005 8:59 pm    Post subject: Reply with quote

Mr. Bubblehead wrote:
The type 4 fan housing is aluminum.


Are you sure??
I was told at VW schools that they were magnesium.
I know T-3's are magnesium. We use them for pyrotechnics on the 4th.
It does take a torche to get them started.
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Bobnotch
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PostPosted: Sat Mar 05, 2005 9:04 pm    Post subject: Reply with quote

http://thesamba.com/vw/forum/album_page.php?pic_id=194943
That piece looks like it could be fabbed out of metal, then the end shaped to accept the t-3 intake boot. Twisted Evil All you would need is a template to get the engine side correct, then a little fabbing and you're done. Very Happy
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67FastyRSA
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PostPosted: Sun Mar 06, 2005 12:27 am    Post subject: Reply with quote

this reminds me of the Space Race.... Fountain pens didn't work so well in space so the Americans had the ball-point pen invented...
meanwhile the Russians just used pencils... Laughing
... seriously... using the plastic flange and just adapting the boot a little bit is less trouble and works well...
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67FastyRSA
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PostPosted: Sun Mar 06, 2005 4:14 am    Post subject: Reply with quote

Just touching on another stumbleblock you might encounter.... oil filler
Have any of you guys seen if a type 3 filler tube would bolt on correctly to the type iv case? I would love to not to have to open the lid to check oil ....(and top up of course) Very Happy
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josh
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PostPosted: Sun Mar 06, 2005 5:21 am    Post subject: Reply with quote

Quote:
Have any of you guys seen if a type 3 filler tube would bolt on correctly to the type iv case?


I'm also curious about this. I've looked into this a little. While their different getting the type3 filler to fit the case is no big deal. I havent really checked into fan housing clearance though. Another worry after comparing the type 3&4 cases is wether or not enough oil would flow into the tube to get a good reading. Trying to get the bus dipstick to line up with the type3 body is another option.

Another issue: I'm using a 914 case. Do i cut a hole in the case to add a filler and dipstick?
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