Type 3 engine build from type 1 case

[t-royR]

I have picked up a type 1 case from 1972. It is torn down completely and I am going to rebuild it as my first engine build (just for fun since I got it so cheap and have no winter car projects).

Seems biggest challenge in using this for a type 3 is the oil fill setup. This case does not have the opening down low in the case for the type 3 oil filler I'm familiar with in my fastback. It has the type 1 dipstick tube. Beyond that, from my research, it seems feasible to build this for type 3.

What say you? Is it worth the trouble to try to do this type 3 build? That oil fill has me stumped.
T-roy
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T-roy
75 Super
71 Super
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69 Fasty
74 Ghia conv

[Ossipon]

Quite simply, it will not be compatible. You need a universal case or a Type 3 case.
While you can build this long block from this case. You will not be able to have a normal oil filler (Which is also the where the Type 3 dipstick goes. You will have to create a filler and breather which can be done, although clumsy. Then create a modified dipstick as the Type 1 dipstick will be obscured by the cooling shroud.
I have seen a person do it. But their way of filling and checking the oill was really messy.
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Ossipon
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[t-royR]

Thanks for that. I'll scrap the type 3 build plans and just build the type 1 out.

Cheers!
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T-roy
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[Erik G]

post a pic of the front of the case. You can make it work, I've done it
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[t-royR]

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[t-royR]

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71 Super
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[Bobnotch]

[Multi69s]

I don't think I would go with that case for any kind of "good" engine. Have you checked to see what size mains will fit. At a minimum you will need a align bore and have the case decked, plus one hell of a cleaning.

If you have a stash of used parts and just want to play / learn, go for it though.
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[t-royR]

I have yet to give it a clean. I do have all the parts. So, we'll go through the motions.

Maybe not a type 3, however.
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T-roy
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[Erik G]

Agree with what bob said, and that's why I was asking for a pic of the front. No holes for the rear hanger.

I personally have used the oil pump adapter and it's really a last resort option, the case may be fine for something earlier, but I wouldn't use it on an IRS type 3 if you don't have to
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[Erik G]

Bob and others using a type 1 block can use one of these for the oil fill

there's a more stockish looking one in the classifieds :

https://www.thesamba.com/vw/classifieds/detail.php?id=2659310
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[Bobnotch]

[t-royR]

Trying to build this engine on the cheap. Want to know if these jugs are usable with the broken fins. They need to be cleaned up, but beyond that, not sure if those broken fins are a show stopper?

Thanks

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[Ossipon]

[t-royR]

I appreciate the reply. I know there is tons to know to build a good engine and that I know none of that. So, I guess I am just trying to go through the motions of the build. I'll do my best to clean all things up real good because I am still going to fire the engine when all done.

Thus, any questions i have going forward are with this understanding, I hope, and I can still get some good advise from all of you as I learn how to assemble the engine, and find I have questions. I'm getting close to retirement and I want to learn more on the engine side of VW builds so I can have some fun with future vw projects.
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[akokarski]

just saw the irs/bar adapter that reminded me of this thread... I wouldn't start with this case for a couple of reasons.
1) it's going to take more machine work than the case is worth and finding reputable machine shop locally unless you are in socal is becoming pretty tough.
2) besides already pointed out issues for using it in irs t3 i also see a big gaping hole in the front, where is that plug? I don't think there is replacement for this.

Here is my experience with rebuilding a complete t3 engine with tins and everything. Almost every single component has given some sort of grief, crank, rods and bearings. At this point the only original part that's left in the long block is the case.

If you want to learn, like really learn what it takes to put an engine together, read bob hoover's blog. That is by far the biggest trove of knowledge and detail that you will not get from any manuals. Like what it takes to prep the case, cylinders and etc.

Anton

[t-royR]

Thanks for that input. That hole must be for a oil temp sending unit. There must be a plug or a vdo temp sending unit to put in there. This engine came from a guy who built experimental aircraft. Maybe he had a need for that sensor. I've moved on from the idea of buidling a t3 engine, due to this case not a universal. I have a guy with a vw shop that just did my auto trannsmission work. I;ll bring this engine by him to see what he thinks of the case.. It cleaned up nice, as did the pistons, jugs, rods, crank and cam. measured cylinders and they are round and at stock diameter. case has not been line bored prior. Nor has the crank been machined.
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[KTPhil]

Looks to be missing the normal internal hex machining plug.

[t-royR]

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[t-royR]

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T-roy
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71 Super
71 Ghia coupe auto-stick
71 Ghia conv
69 Fasty
74 Ghia conv