Topic: Engine removed -- Finally!

After about a year of 'life' getting in the way, my 74 bug is finally getting some attention.

I built an insulated shop last year with the intention of getting some work done on my baby, but I spent all of my money on the shop!  So I drove her for another summer and she limped along like a real trooper.

I've got the shop set up and with a few borrowed items, the engine is finally out and the fun stuff can begin.

http://www.thebignic.com/img/engine1.JPG

(large rust spot was caused by an engine fire during the previous owners tenure)

Of course I'm already scaling back my big plans because I want it to be on the road come spring.  But I'm hoping to rebuild the engine for starters since its been leaking oil and running rough for quite a while. 

After removing the clutch/flywheel, I discovered a pretty bad leak in the rear main seal and some rather unfortunate 'wear' on the dowel holes on the end of the crank.  It appears as though two of the dowels were loose and the holes are quite "oblong" now because of the rotational force.  So, I'll be splitting the case for sure.

The heater boxes are completely destroyed but since I only drive in the summer, what are your thoughts on just running the J pipes without the heater boxes around them?

Its all new to me, so I'll be sticking to a stock rebuild.  Even though I really want some more HP, I think I'll wait until next season to get into that.

Wish me luck smile

-biggie

Re: Engine removed -- Finally!

Biggie,

From what I can see in the photo, the new shop looks great!

Did you:

- pour the new floor?
- how big is the new shop (length x width x height)?
- is it heated?
- detached or attached?

Did you have any troubles getting the engine out?

Good luck with the rebuild, hope it goes smoothly & quickly...I also hope that since you are splitting the case, that you have plenty of reference materials (books/videos/website info)...and hopefully some previous engine rebuild experience to provide some extra confidence!

- Nick

1979 Super Beetle Convertible

Re: Engine removed -- Finally!

Biggie,

I noticed that your engine "looks" like it has a non-stock 2-barrel carb. (I could be wrong if I not seeing the picture correctly).

I've used/tried a 2-barrel non-stock carb. in the past (on a stock 1600cc engine)...and I know that I saw probably a 5 mpg decrease in mpg when I used it...without getting much of a performance increase in my humble opinion.

If you would like to get better mpg, I would recommend trying a more stock 1-barrel carb.

Just an idea.  Maybe your mpg & engine performance experience has been different from mine.

- Nick

1979 Super Beetle Convertible

Re: Engine removed -- Finally!

Garage is attached to the house. Not heated but I'm able to work in there without any extra heat (just wearing a jacket) and its been around the -20 mark for a few weeks now smile  Floor is poured concrete, about 30 x 17.

Pulling the engine was a bit of an ordeal (first time I've tried, and I did it on my own.)   I didn't have an engine dolly to lower it on to, so getting it off the jack and onto the pieces of wood took a bit of brute force.  It wasn't very elegant hmm haha   I think I will invest in one of those small dolly's when I try to put it back in.

The carb is a Weber DFAV (yes, 'A' for water choke! ugh!) that the previous owner had put on.  I think he tried to wire an electric choke to it but whenever it was connected it caused my coil to get too hot.  Its been a nightmare and mileage has been horrible.  It runs very rich, and I cant seem to tune it.  I don't know anything about setting jets, but the richness screws do NOTHING at this point hmm   Tonight I started tearing the engine down and I'm finding it to be a holy nightmare to pull things apart because there is one nut that is completely inaccessible and the side of the carb sticks out too far over the alternator for me to remove it.  I had to dismantle the top of the carb just to squeeze the alternator and fan shroud out.  Then I could finally remove the rest of the carb from the manifold once I got in behind it.  It was a real motivation killer sad

I also snapped one of the exhaust manifold studs on the head (ouch!) but my bother (certified machinist... how convenient!) says he can probably fix that.  (Drill new hole, tap, and put in some sort of case saver?)

Also (embarassing moment coming up) I bought a new carb last year, expecting to replace the Weber, but I'm not sure if I just got the wrong carb, or I have a non-stock manifold because It doesn't appear to fit smile  So I think I'm on the lookout for a stock carb manifold now as well (sigh)  I'm assuming since there are two ports int eh manifold that it is specifically made for the 2 barrel carb?

I'm also trying to figure out what kind of sensor would be on the top of the case, pointing out towards the flywheel?  Its a three pronged wire and it was not connected to anything on the other end.

I've got a few of the Bug Me DVDs (including rebuild) which I've watched a few times. I also have a Bently, Haynes, and a pretty thick (and amusing) "How to Keep your VW Alive."   So far I'm just very proud to be able to identify everything that I'm pulling off.  Two years ago I wouldn't have known a fuel pump from the distributor smile

-biggie

Re: Engine removed -- Finally!

Is the carb too small for the dual port manifold? If so then you just need an adapter that screws to the bottom of your car and then mounts on the manifold the same way. You will have better MPG if you bought a 30 PICT or 31 PICT. I wouldn't run a 1600 with a double barrel carb, that's pretty much a waste. Make sure you get the end play right that was the culprit of my rebuild going south. It's the only thing I could figure out that caused the failure. You might consider a good RTV sealant to seal everything and you will have minimal oil leaks. I don't have any leaks on my engine so far. I used to use a drip pan, but now I don't. Good luck and keep us informed.

Not a proud owner of Sally 1969 Sedan with a burned 1915 tiger under the deck lid.
Also George a 1957 Sedan, not yet started with Resto.

Re: Engine removed -- Finally!

Hiya Biggie,

A couple of suggestions if I may........................

Since you are just about to get under way in a rebuild you should invest a few of your hard-earned dollars in Tom Wilson's How To Rebuild Your Volkswagen Engine.  I can't imagine anybody trying a rebuild for the first time without this book at their side.

And.............

I've seen a few of Rick Higgin's Bug Me video series.  They are also an excellent resource.  However, I would take issue with one procedure Rick shows in the Engine Rebuild video.  He waits until the case is assembled to install the distributor drive gear.  And it looks easy enough in the video.  BUT..........  what happens if the distributor drive gear doesn't want to seat?  What happens if those end washers get separated or lost?  Even Rick advises that you only have one chance at this procedure.  To avoid having to pull the case apart to solve your problem, install the distributor drive gear while the case is apart the first time.  Not only do you forego the problems mentioned above but you will be sure the distributor drive gear is properly in place and seated.

Mike

1970 AS Bug
1970 Bus - The Ruptured Duck

Re: Engine removed -- Finally!

Nic!--good to hear you're finally in the thick of things!!
Can I come see when I'm back in town???
Wish I could help!
that is a darn good looking garage you have there-well insulated to!
I've been getting weather reports from town and you guys have been having a good old fashion winter this year--one you can brag to your kids about hahah
Good luck there Nic!

Patty B.
'69 stock bug

Re: Engine removed -- Finally!

Bookwus: Actually I do have that Tom Wilson book also, forgot about that smile  Also, yes, the distributor gear seems easy enough to pull out when the case was apart, I'm really not sure why he would wait until the case is closed to put it back in?


So I've split the case and got everything apart. Only a few small issues...

I'm not sure about the cam - i can see some slight wear, but no 'pitting.'  I'm not sure if its too worn to put back in, so I'll have to get some opinions.  I think I'll be replacing MOST parts just to get some longevity out of the engine, but costs are adding up pretty quick wink

A couple of the crank bearings were definitely pushing back into the case so I'll need to have the crank bored and find some over-sized bearings.

The one thing I'm a little worried about though is the cylinder/head studs.  Three of the studs came out.  They screwed out, not pulled - there ARE case savers already in the block and all of the studs appeared to be solid (I tightened them a bit first to see if they'd pull the studs out.)   Three nuts were rusted onto the studs.  I'll get a new stud kit just to be safe but there appears to be one case saver that's broken or half-missing?  When I put a stud into that particular hole there ARE some threads further in, but the case saver is not visible (not flush with the edge of the case at least).  Seems like the case saver is either too short, broken, or was inserted too far into the case?  Any thoughts?

I'm debating weather to continue with a stock rebuild or try to get a bit more performance.  Conventional wisdom seems to indicate that I just TRY to rebuild a stock engine first, before worrying about performance.  BUT, since I will be getting my heads/case worked on anyway,  would it be worth my while to get the heads/case bored out to accept some larger cylinders?  (Nothing crazy, maybe 1700 or 1800 max)

-biggie

Re: Engine removed -- Finally!

The case saver you can't see is intentional - it was a deep studed saver as an attempt to reduce case cracking.

The 3-wire sensor pointing towards the flywheel was a TDC sensor used by VWs engine diagnostics to check timing. The Waterboxer engines used them too. Since it only connects to the special VW instrument that no one has anymore, you don't need it.