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Installing engine and transaxle as one unit
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hedmanbr
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PostPosted: Tue Mar 19, 2024 5:57 pm    Post subject: Installing engine and transaxle as one unit Reply with quote

Has anyone installed both the engine and transaxle together as a single unit? Is it easier that way. I have both out for rebuilds and was wondering. It would certainly be easier to mate the two outside of the car, but not sure how bad it will make the install to have a single unit that big and heavy.
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PostPosted: Tue Mar 19, 2024 6:11 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

Depends on the vehicle, which kind are you asking about?
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PostPosted: Tue Mar 19, 2024 6:12 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

hedmanbr wrote:
Has anyone installed both the engine and transaxle together as a single unit? Is it easier that way. I have both out for rebuilds and was wondering.

I've always done them separately.


hedmanbr wrote:
It would certainly be easier to mate the two outside of the car, but not sure how bad it will make the install to have a single unit that big and heavy.

"Difficulties" to mate the engine with the transmission are overblown in my experience (maybe 75 installs, 95% working alone).
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PostPosted: Tue Mar 19, 2024 6:12 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

In a Bus... yes.

In a Beetle... no.
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PostPosted: Tue Mar 19, 2024 7:11 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

^^^ This! ^^^
It may also work in the late type 3 with the moustache bar and the 411/412s. It won’t work in a Beetle.
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PostPosted: Tue Mar 19, 2024 10:29 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

Unless it’s a vehicle with IRS suspension and no frame horns it would not make any sense.

Any swing axle vehicle definitely not.

A vehicle with IRS and frame horns that mount the transaxle you’re just making the job much more difficult, dumb idea.
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PostPosted: Wed Mar 20, 2024 4:02 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

The only "all in one" job I've done was in my bus when I needed to swap a nose cone out. Rather than pull the motor and transaxle I just slid it all back as one unit about 4 inches to swap it out. Otherwise not so sure I would want to install them as one heavy and bulky unit.
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raygreenwood
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PostPosted: Wed Mar 20, 2024 6:13 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

oprn wrote:
^^^ This! ^^^
It may also work in the late type 3 with the moustache bar and the 411/412s. It won’t work in a Beetle.


I can attest to the fact that it's significantly easier to do as a complete unit in a 411 or 412. This is because these cars have three point mounting for the drivetrain package (technically two point and a floating bump stop) that requires significant upwards movement only after achieving inward movement from the rear.

Yes, the type 3 is enough similar that doing it as a unit is also a little bit easier. Ray
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PostPosted: Wed Mar 20, 2024 7:25 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

That was my favorate reason for loving my 914 when I had it.

As you may know they are mid engine and the tranny was behind the engine. The T-4 engine and tranny just lower to the floor.



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PostPosted: Wed Mar 20, 2024 7:45 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

oprn wrote:
^^^ This! ^^^
It may also work in the late type 3 with the moustache bar and the 411/412s. It won’t work in a Beetle.


This was always the prefered method when running the IRS housing without frame horns. now that i have horns with irs mounts it makes more sense to remove engine only
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PostPosted: Wed Mar 20, 2024 8:49 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

I had no clue, been driving bugs for 54 years and just learned somethiing new.
Thanks guys.
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oprn
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PostPosted: Wed Mar 20, 2024 10:43 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

On the Beetle it really boils down to two issues. The first is that there is not really enough room to remove the two bolts in the frame horns to separate the rear mount saddle from the frame horns. Then if you leave the saddle in place and unbolt the rear transaxle mounts you cannot move the engine/transaxle assembly far enough back to drop out before it hits the rear body apron.

At least that is the way I remember it from way back then.
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PostPosted: Wed Mar 20, 2024 12:39 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

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I’ll share my Ghia experience but it involved removing the engine and transmission as a unit.
I had a problem where the engine would not separate from the trans. Tried every prybar I had and would not pop out. Decided to try and disassemble the engine while in the car. Managed to get the fan shroud, tins and oil cooler off but the heads were a no go. So someone suggested removing both the engine and transaxle as a unit. Worth a shot.
IRS transaxle so disconnected the CVs, cable, cradle bolts and nose cone mount.
Pulled it rearward but once loose discovered the CV flanges don’t drop out. Had to muscle the unit up with the engine side high and pull it to the rear until the flanges cleared then push everything forward for the engine to clear the rear apron.
So I will say no. Absolutely easier to install and remove separately.
Eventually found my flywheel had grabbed onto one of the transaxle mount nuts and wouldn’t let go.
Lesson learned. Don’t use nyloc nuts on your transaxle mounts.
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PostPosted: Wed Mar 20, 2024 5:31 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

Thanks everyone for such quick replies. The vehicle is a 65 bug so It sounds like it is not a good idea. I'll just have to install them separately.
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PostPosted: Wed Mar 20, 2024 7:02 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

An IRS beetle wouldn’t be bad…swingaxle forget about it
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PostPosted: Wed Mar 20, 2024 7:05 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

txoval wrote:
An IRS beetle wouldn’t be bad…swingaxle forget about it

On a late model Beetle with IRS, the transaxle will not drop between the framhorns. It has to be slid back till the IRS flanges clear the horns.
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oprn
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PostPosted: Thu Mar 21, 2024 4:51 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

jeffrey8164 wins this debate! He has just been there and done that!
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PostPosted: Thu Mar 21, 2024 10:06 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

oprn wrote:
jeffrey8164 wins this debate! He has just been there and done that!

He removed it as a unit because he was fucked and had no other choice but to muscle it out as a unit, after stripping the alternator and tin off the engine.

He surely didn’t consider installing them back in the car as an assembly after struggling with the unfortunate need to remove them as a unit.
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PostPosted: Thu Mar 21, 2024 10:10 am    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

txoval wrote:
An IRS beetle wouldn’t be bad…swingaxle forget about it

It wouldn’t be bad at all.

It would be worse than bad. It would be a horrible choice to attempt that and would make absolutely no sense.
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PostPosted: Thu Mar 21, 2024 7:49 pm    Post subject: Re: Installing engine and transaxle as one unit Reply with quote

b-man wrote:
oprn wrote:
jeffrey8164 wins this debate! He has just been there and done that!

He removed it as a unit because he was fucked and had no other choice but to muscle it out as a unit, after stripping the alternator and tin off the engine.

He surely didn’t consider installing them back in the car as an assembly after struggling with the unfortunate need to remove them as a unit.

Exactly!!!
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