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Noob Question: A/T engine to M/T Engine
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apihor
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PostPosted: Mon Jul 05, 2021 3:44 pm    Post subject: Noob Question: A/T engine to M/T Engine Reply with quote

Hey Samba,
Sorry for the noob question, but I just bought an engine that came from an Automatic squareback and I am putting it in my Manual squareback . Is there anything different between the two? is there anything I need to make it work properly?
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Mike Fisher
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PostPosted: Tue Jul 06, 2021 10:27 am    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

I don't think there is anything to change except for the flex plate/clutch swap?
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apihor
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PostPosted: Tue Jul 06, 2021 10:30 am    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

Mike Fisher wrote:
I don't think there is anything to change except for the flex plate/clutch swap?



Awesome thanks, that is what I was wondering... I am still waiting for the engine to be shipped. I will order a new clutch.
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galencurrington
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PostPosted: Tue Jul 06, 2021 10:36 am    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

don't forget to buy a new main seal while you are at it. those motors are usually pretty nice on the thrust bearing not getting beat up from the clutch.
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apihor
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PostPosted: Tue Jul 06, 2021 1:51 pm    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

galencurrington wrote:
don't forget to buy a new main seal while you are at it. those motors are usually pretty nice on the thrust bearing not getting beat up from the clutch.


$5 will do, might as well replace that too
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Bobnotch
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PostPosted: Wed Jul 07, 2021 12:11 pm    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

Double check the end play, and you should be good.
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Ceckert64
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PostPosted: Wed Jul 07, 2021 7:15 pm    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

If its a Fuel injected engine, a few of the parts may be different for the FI system. I may be wrong but I dont believe its anything significant, a kick down switch you can take off. I think the transmission to engine bolts may be different lengths
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bally
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PostPosted: Wed Oct 20, 2021 12:03 am    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

Are there differences between the carbs on an auto and those on a manual? I'm not saying it wouldn't work, nor that you'd need to change them, but I have a feeling there is a difference.

This funky bit on the base plate of this carb is not on all type three carbs - I believe this is a type 3 feature
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Dave
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KTPhil Premium Member
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PostPosted: Wed Oct 20, 2021 9:57 am    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

Minor trivia: The cup to close off the cam hole in the front case face area is fitted differently at the factory, depending on whether it is for a manual or automatic.

The manual cars had the cup facing inward (the flat part faces out), as all repair manuals recommend.
The automatics had it flipped so it is concave. This way that area of the case and plug could be clearanced in cases of excessive endplay, when the flex plate could hit the case or plug there.

So the "universal" approach when rebuilding is to fit the plug concave like the automatics, since it can be used on either tranny.

Now you know.


Last edited by KTPhil on Wed Oct 20, 2021 2:56 pm; edited 1 time in total
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Bobnotch
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PostPosted: Wed Oct 20, 2021 1:54 pm    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

bally wrote:
Are there differences between the carbs on an auto and those on a manual? I'm not saying it wouldn't work, nor that you'd need to change them, but I have a feeling there is a difference.

This funky bit on the base plate of this carb is not on all type three carbs - I believe this is a type 3 feature
Image may have been reduced in size. Click image to view fullscreen.


Dave


But since the OP is from the USA, he's more than likely dealing with FI, or doing a carb swap.
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71 Notch ...aka Krunchy; build pics here;
http://www.thesamba.com/vw/forum/viewtopic.php?t=249390 -been busy working
64 T-34 Ghia...aka Wolfie, under construction... http://www.thesamba.com/vw/forum/viewtopic.php?t=412120
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Tram wrote:
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KTPhil Premium Member
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PostPosted: Wed Oct 20, 2021 2:58 pm    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

If it's FI, the automatic engines used an electric AAR; the manuals used a mechanical coil spring type. either can be fitted if the wiring is taken care of (it's there on all cars, but clipped short on manual chassis).
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bally
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PostPosted: Wed Oct 20, 2021 2:59 pm    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

Good point Bob. Id still like to know if this is a difference between auto and manual engines (Im building an auto myself)

Dave
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Mike Fisher
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PostPosted: Wed Oct 20, 2021 4:06 pm    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

bally wrote:
Good point Bob. Id still like to know if this is a difference between auto and manual engines (Im building an auto myself)

Dave

The throttle linkage is different for the carburetor AT verses the fuel injection AT and it's scarce, but not critical.
I believe the springs are one thing different between them.
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Bobnotch
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PostPosted: Thu Oct 21, 2021 11:56 am    Post subject: Re: Noob Question: A/T engine to M/T Engine Reply with quote

bally wrote:
Good point Bob. Id still like to know if this is a difference between auto and manual engines (Im building an auto myself)

Dave


There's a couple of little changes, and not all are related to the engine. The big difference is the vacuum modulator, as it's set for either FI or carbs, mainly due to the vacuum signal from the engine (VW says you need to change it). On my wife's 70 Fastback, we ran it for a few years with carbs (Solex 32s), then after I gathered up the bits, I converted it back to FI (still is). I never changed the Vacuum modulator or it's setting, as it was close enough for me.
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Bob 65 Notch S with Sunroof
71 Notch ...aka Krunchy; build pics here;
http://www.thesamba.com/vw/forum/viewtopic.php?t=249390 -been busy working
64 T-34 Ghia...aka Wolfie, under construction... http://www.thesamba.com/vw/forum/viewtopic.php?t=412120
Tram wrote:
"Friends are God's way of apologizing for relatives."
Tram wrote:
People keep confusing "restored" and "restroyed".
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