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1969 VW Buggy
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donandrobin
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PostPosted: Tue Jun 14, 2016 5:07 pm    Post subject: 1969 VW Buggy Reply with quote

Just picked up a '69 VW full length buggy! It's insured and is in 90% working order... need to fix a few of the electronics and order a few gaskets, nothing too extravagant. Here's a few pics.

The engine is AJ (1975-79 fuel injected) but there's an EMPI carb on it. The distributor is a 009 but doesn't appear to be Bosch, it looks like a cheap aftermarket.

I've checked the points (0.016-0.20"), plugs, wires, rotor, etc... however when I do the timing it's all over the place and the engine backfires when I let go of the gas. The rotor points to the mark on the distributor for plug 1 at TDC... however the timing is at 20 degrees ATDC or it stalls. Am I missing something?

I'm thinking a genuine Bosch 009 ?

Appreciate your advice!!



IMG_4685.JPG
 Description:
69 VW Buggy Front
 Filesize:  1.85 MB
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IMG_4684.JPG
 Description:
69 VW Buggy Rear
 Filesize:  1.78 MB
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IMG_4680.JPG
 Description:
AJ Engine with EMPI Carb and aftermarket 009 Distributor
 Filesize:  2.27 MB
 Viewed:  82 Time(s)

IMG_4680.JPG


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PostPosted: Tue Jun 14, 2016 5:27 pm    Post subject: Reply with quote

Are you or have you static timed it with a test light? Do you have a degree pulley ?
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donandrobin
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PostPosted: Tue Jun 14, 2016 5:30 pm    Post subject: Reply with quote

I have a degree pulley (you can see it in the bottom photo). I haven't static timed it but I have a decent timing light gun.

Is the static timing easy to do? I've tried it before on another VW years back but I don't think I had any success (or knew how to do it to be candid).
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PostPosted: Tue Jun 14, 2016 8:17 pm    Post subject: Reply with quote

Make sure it's timed to number 1 and not number 3 cylinder. Here's a great tutorial from Chris Vallone with all the details.

"Classic VW Beetle Bug Ghia Bus How to Time Set Volkswagen Engine Timing"
https://youtu.be/787INwvir24


Last edited by Busaddict on Tue Jun 14, 2016 11:51 pm; edited 1 time in total
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donandrobin
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PostPosted: Tue Jun 14, 2016 11:06 pm    Post subject: Reply with quote

Perfect I'll check this out tomorrow!
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donandrobin
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PostPosted: Wed Jun 15, 2016 9:20 pm    Post subject: Reply with quote

Thanks for the link to the video, and I've static timed it. It was slightly off, turned the distributor about 1/4" of an inch.

The engine still backfires when I let go of the gas ... I confirmed it's timed to #1 cylinder.

What's the next thing I could check? Appreciate the help!
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PostPosted: Thu Jun 16, 2016 1:15 am    Post subject: Reply with quote

donandrobin wrote:
Thanks for the link to the video, and I've static timed it. It was slightly off, turned the distributor about 1/4" of an inch.

The engine still backfires when I let go of the gas ... I confirmed it's timed to #1 cylinder.

What's the next thing I could check? Appreciate the help!


I can't say that this is the answer, but my bus used to pop when I would decelerate. A mechanic told me it was because of my aftermarket exhaust, but it turned out to be a loose stud on the number one exhaust manifold. Is it just a few pops, or is it more serious? And is the gas old?
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PostPosted: Thu Jun 16, 2016 8:31 am    Post subject: Reply with quote

Backfire on deceleration indicates an exhaust leak.
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donandrobin
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PostPosted: Tue Jun 21, 2016 10:23 pm    Post subject: Reply with quote

Makes perfect sense... I'll have a look over the exhaust and see if I can find out where it's getting through...
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PostPosted: Sat Jun 25, 2016 5:26 pm    Post subject: Reply with quote

Still going over the exhaust trying to locate the leak. I'm thinking of putting on dual chrome exhausts so not too worried about this right now.

I have another motor, a 1700c from a 73 Bus in my garage. It has a 005 distributor on it, and lo and behold, it has a Pertronix Ignitor electronic ignition installed!

I took out my chinese made 009 from my buggy and replaced it with the genuine VW 005 and Pertronix ignition. I timed it to 7.5 BTC and it purrs like a kitten.

Wow, what a difference!!!

Acceleration is much smoother, and the engine seems to idle better at all RPMs. I'm definitely going to get one of these for my 74 Bug.

Question is - should I get the Pertronix Coil or is the stock blue coil ok? If I can get 1 more HP I'll go with the Pertronix Coil.

And I heard a power pulley will give more HP - what the heck is a power pulley?



IMG_4775.JPG
 Description:
Genuine VW 005 Distributor
 Filesize:  1.56 MB
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IMG_4776.JPG
 Description:
Pertronic Ignitor electronic ignition installed in VW 005 distributor
 Filesize:  1.73 MB
 Viewed:  64 Time(s)

IMG_4776.JPG


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PostPosted: Sat Jun 25, 2016 5:46 pm    Post subject: 69 dunebuggy Reply with quote

Hi Don,

A power pulley has a slightly smaller diameter than a stock pulley. This provides a little extra HP, but at a cost to your cooling. Think carefully before going that route.

John
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donandrobin
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PostPosted: Sat Jun 25, 2016 5:52 pm    Post subject: Reply with quote

Thanks for the info, going to pass on a power pulley then. Because the buggy engine is already out in the open and not cooled properly such as in a vacuum in my bug, I don't want to do any mods that would be detrimental to cooling.
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donandrobin
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PostPosted: Sun Jul 17, 2016 2:52 pm    Post subject: Reply with quote

So everything is running great... but I have a serious oil leak but I don't know if it's a leak or the wrong part was installed by the previous owner?

Even after running for a few seconds, it starts leaking from what appears to be the oil dipstick tube? The oil level is right in the middle of the lines so I know it's not overfilled. I thought that perhaps it's the wrong dipstick but it's exactly the same as the one from my 74 Bug.

It literally is flowing from the top part of the dipstick tube over the tin and down... I put pink (pretty colour!) where the oil is... any thoughts? I can't even leave my driveway without leaving a trail of oil so I parked it for now.

There is no oil breather hose, it's an aftermarket air filter on the carb (empi carb).

Would love some insight.



manx_engine.JPG
 Description:
Lots of oil flowing out
 Filesize:  2.6 MB
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manx_engine2.JPG
 Description:
Oil flows down dipstick tube and leaks all over the place
 Filesize:  2.03 MB
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manx_engine.jpg
 Description:
with pink where the oil goes
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manx_engine2.jpg
 Description:
with pink where the oil flows down
 Filesize:  134.94 KB
 Viewed:  70 Time(s)

manx_engine2.jpg


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donandrobin
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PostPosted: Wed Jul 20, 2016 8:03 pm    Post subject: Reply with quote

Still pondering on this...

Last edited by donandrobin on Thu Apr 06, 2017 8:59 pm; edited 1 time in total
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Clay
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PostPosted: Wed Jul 20, 2016 11:36 pm    Post subject: Reply with quote

What do you have to relieve crankcase pressure? Is it still that orange hose? Where does the other end of that hose go?

Try with the oil filler cap off and see if it still flows out the dipstick tube...

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