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At 07:29 AM 3/23/04, Rus wrote:
>hehehe Sorry guys..........im just used to working on
>bugs and busses that are carb-ed.......I have a 412
>type 4 engine that IS fuel injected but was told it
>wouldnt fit in my type three without alot of
>modifications and im just not up to that.......just
If your two options right now are the '63-ish T3 engine or the T4 FI engine, I'd
be leaning towards the T4. This list is a very good source of FI information
and assistance, and there are a few people around that know about the T4-into-T3
installation. Whoever told you it takes lots of modifications was overstating
things. Putting that T4 engine with FI into your '70 isn't really much more work
than putting a carbed pre-'69 T3 engine into it. Here's a basic rundown of what
would need to be done -- I'm sure I've missed some details, this is off the top of
my head.
T4 engine:
1) Move the pilot bearing from the end of the crank to the center of the flywheel.
(requires slight machining and a $5 part.)
2a) Add early-style ring to pressure plate -- scavenge from a pressure plate "core"
or get one from John at aircooled.net, he told me he had them awhile back.
-- or --
2b) Add adapter sleeve for late-model throwout bearing to transaxle, and change
the throwout bearing fork/shaft to the '71-up style.
3) Slightly clearance the bellhousing (if needed).
4) Fabricate/adapt the crossmember mounting.
5) (the tricky part) Find a cooling inlet ring and boot from a 411/412 Squareback.
6) Hook up FI, hit the key.
Pre-'69 T3 engine:
1) Fabricate crossmember mounting. The pre-'69 engines didn't have a rear
crossmember like your '70 does, there are no bosses in the case to mount one.
Forget about the "crossmember adapter" plates that go on the oilpump, they're
a very bad idea, are designed for a Bus, and therefore won't work with the T3
crossmember without some serious fabrication. The swingaxle T3's had frame
horns for the transaxle like a Bug, the IRS T3's don't.
2a) If you're doing it "right", remove all FI-related wiring, hoses and components
from the engine compartment, the "brain" from inside the driver-side rear fender,
the fuel pump under the beam. Plug the return line going into the gas tank.
(this is a *lot* more work than it seems, been-there-done-that)
2b) Save *everything* from the FI system and sell it all to someone on the list.
Everyone wins -- you get some money, the buyer gets some spare parts.
3) Install early engine. Spend the rest of your life syncing the carbs and cussing
about worn-out factory dual-carb linkage that won't stay adjusted.
Hopefully this will help ..
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