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> What went wrong?, it was running great and then not at all
Type 47
post Mar 15 2023, 03:59 PM
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so we put the original 62k engine back in that had not had the distributor removed. Adjusted the valves (again after we put about 10 miles on it) we rebuilt the Webbers and it fired up. We did some timing and tweaking on the carbs.

It ran OK but a little shy of perfect. I replaced the wires and it seemed to improve it but idled a little high around 1,200.

My son came over to work on it the next day, but I wasn't home. All of a sudden, it won't even run.

we swapped distributers (both 009's) with the parts car, then swapped points (adjusted to 0.016). no improvement.

tested spark to all four cylinders. I seems like it's really out of timing but we didn't change it much. (except for the fact that we took the distributor out)

my son says we have spark, too much fuel, and not enough air.

What do we do next?????

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nditiz1
post Mar 21 2023, 06:37 PM
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There are definitely different levels of cleaning. Even to go as far as dipping them in Chem dip. The rebuild kit will break the carb down enough to get most areas clean. You need to pay attention to the passages and shoot brake cleaner and compressed air through them.

Did you perform the float adjustment procedure. Very key to setting carbs up?

Ensure you have proper fuel pressure to the carbs (3psi)

Dialing in carbs is not difficult, but it can be time consuming. You also need to make sure the the engine is warm.

Since it will at least idle you already have a base. Pop off the linkage on side so it does not interfere with getting them to idle smoothly. Use the snail gauge to ensure the vac on both L and R are the same. Also ensure the the throats on the same carb are also in sync. The bypass screws should start all the way closed. These screws will be opened to increase the vac on that throat. In the perfect world all throats will be the same as the pull on each cylinder is perfectly matched, but I have yet to encounter this so minor adjustment is always needed.

Now that all 4 carbs are in sync you can use the Idle speed screw to bring the idle to around 1000. When you do this your sync will be off so readjust L and R.

Now you should be running ~1000 and the Land R are in sync. Start turning the mixture screws out from all the way in about 3 turns. Slowly screw it in until the engine starts to stumble. If the idle never drops you could have an issue (dirt) with that throat. The point at which the engine starts to stumble means it is going lean. I usually back the screw out a half turn or quarter depending on the jet size. This will get you close to best lean idle. If the engine is worn the same all 4 mixture screws should be within a quarter to half turn of each other. It is a good practice to perform this step a few times as it could increase you idle. This will make you move the speed screws out to lower idle which will change the mixture. It is a cycle to get everything into a harmonious balance.

If you have made it this far the engine should be pretty smooth. If not you could have any number of issues, dirty carbs, intake leak, exhaust leak.

The last step is to sync the carbs under throttle from linkage. You use the sync gauge again holding different RPM to ensure the L and R are the same. If one side is pulling more then adjust the linkage. You never need to touch mixture, idle speed, or bypass screws.

The last step involves driving, getting a feel, and using a AFR meter to possibly rejet.
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Type 47   What went wrong?   Mar 15 2023, 03:59 PM
Superhawk996   we swapped distributers (both 009's) with t...   Mar 15 2023, 04:15 PM
Root_Werks   we swapped distributers (both 009's) with ...   Mar 15 2023, 04:20 PM
Type 47   [quote name='Superhawk996' post='3065291' date='M...   Mar 15 2023, 04:28 PM
Superhawk996   So, if distributor, points were working properl...   Mar 15 2023, 04:36 PM
Type 47   we swapped distributers (both 009's) with ...   Mar 15 2023, 04:21 PM
Superhawk996   Using the parts shotgun approach to troubleshoot h...   Mar 15 2023, 04:33 PM
Type 47   Do you see the accelerator pump shooting fuel? ...   Mar 15 2023, 05:54 PM
930cabman   Is there compression?   Mar 15 2023, 04:38 PM
Superhawk996   Is there compression? :D I ASSUMED . . . Good...   Mar 15 2023, 04:41 PM
nditiz1   I would put the old distro back in and make sure t...   Mar 15 2023, 05:02 PM
Superhawk996   I would put the old distro back in and make sure ...   Mar 15 2023, 05:17 PM
Type 47   I would put the old distro back in and make sure ...   Mar 15 2023, 05:56 PM
930cabman   Is a cam lobe wiped out? Known history is inconclu...   Mar 15 2023, 05:02 PM
Aerostatwv   Sounds like a bad condenser to me.   Mar 15 2023, 05:21 PM
Superhawk996   Sounds like a bad condenser to me. If it’s spa...   Mar 15 2023, 05:32 PM
Rand   Sounds like a bad condenser to me. I'd be in...   Mar 21 2023, 07:04 PM
nditiz1   If the swapped in distro is a known working entity...   Mar 15 2023, 05:54 PM
Type 47   If the swapped in distro is a known working entit...   Mar 15 2023, 05:57 PM
Superhawk996   If the swapped in distro is a known working enti...   Mar 15 2023, 06:12 PM
Type 47   [quote name='Type 47' post='3065346' date='Mar 15...   Mar 15 2023, 09:49 PM
bossboy302   Verify actual TDC but popping off 1/2 valve cover...   Mar 15 2023, 06:50 PM
Type 47   Verify actual TDC but popping off 1/2 valve cove...   Mar 15 2023, 09:47 PM
ChrisFoley   thanks, we understand. Can't tell you how m...   Mar 20 2023, 04:18 AM
bossboy302   thanks, we understand. Can't tell you how ...   Mar 20 2023, 12:07 PM
Gatornapper   Best thing I've ever seen on setting static ti...   Mar 15 2023, 07:27 PM
Superhawk996   What is the static timing set at? Should be about...   Mar 15 2023, 10:22 PM
Dustin914   What is the static timing set at? Should be abou...   Mar 20 2023, 04:54 PM
brant   no one mentioned the 009 it won't be your lac...   Mar 16 2023, 10:58 AM
Root_Werks   Make sure to post the solution when you do figure ...   Mar 17 2023, 02:11 PM
Type 47   Make sure to post the solution when you do figure...   Mar 18 2023, 07:03 PM
ChrisFoley   not sure why plug wire #1 is so tight? Switch...   Mar 19 2023, 03:27 AM
930cabman   [quote name='Root_Werks' post='3065796' date='Mar...   Mar 19 2023, 05:46 AM
Type 47   [quote name='Root_Werks' post='3065796' date='Ma...   Mar 19 2023, 04:22 PM
lolkema   I would start by making 100% sure the distributor ...   Mar 18 2023, 06:17 PM
second wind   I have to share....my '73 2.0 had "spark...   Mar 19 2023, 01:26 AM
nditiz1   This seems like a very drastic approach. I don...   Mar 19 2023, 06:14 PM
Type 47   This seems like a very drastic approach. I don...   Mar 20 2023, 12:48 PM
Superhawk996   . . . is like "what's a carburetor?...   Mar 20 2023, 12:59 PM
Dave_Darling   That distributor does not look to be in the right ...   Mar 19 2023, 07:51 PM
bobboinski   Distributor cap looks to be wired wrong. Or maybe ...   Mar 19 2023, 09:02 PM
VaccaRabite   Your dizzy is all sorts of awkward in that picture...   Mar 19 2023, 09:13 PM
930cabman   Back in the day it was difficult to find (and keep...   Mar 20 2023, 04:30 PM
ChrisFoley   with a timing light while the engine is running.   Mar 20 2023, 06:35 PM
Superhawk996   with a timing light while the engine is running. ...   Mar 20 2023, 07:24 PM
Type 47   with a timing light while the engine is running. ...   Mar 20 2023, 08:23 PM
Superhawk996   with a timing light while the engine is running....   Mar 20 2023, 08:29 PM
Superhawk996   Now that the carbs have been removed - you’re go...   Mar 20 2023, 08:35 PM
Type 47   Now that the carbs have been removed - you’re g...   Mar 20 2023, 09:18 PM
Type 47   Could a valve be stuck and causing chaos? then no...   Mar 20 2023, 09:40 PM
Superhawk996   Could a valve be stuck and causing chaos? then n...   Mar 20 2023, 09:55 PM
Dave_Darling   Distributor. Check that distributor. Do not f**k...   Mar 20 2023, 09:58 PM
Superhawk996   Distributor. Check that distributor. Do not f**...   Mar 20 2023, 10:04 PM
Type 47   Distributor. Check that distributor. Do not f**...   Mar 21 2023, 09:15 AM
Superhawk996   Sorry - not trying to over simplify However tuni...   Mar 20 2023, 10:02 PM
Type 47   Sorry - not trying to over simplify However tun...   Mar 21 2023, 09:26 AM
brant   Taking the carbs off will effect the linkage Havi...   Mar 21 2023, 07:48 AM
Type 47   Taking the carbs off will effect the linkage Hav...   Mar 21 2023, 09:16 AM
brant   Taking the carbs off will effect the linkage Ha...   Mar 21 2023, 09:58 AM
nditiz1   If the car pops stutters backfires at IDLE here ar...   Mar 21 2023, 09:29 AM
Type 47   Idle circuit is dirty - are the carbs clean? Ha...   Mar 21 2023, 02:56 PM
technicalninja   with a timing light while the engine is running....   Mar 21 2023, 10:12 AM
technicalninja   Timing could be off, but I believe you ran it u...   Mar 21 2023, 10:17 AM
nditiz1   Yes please retract your post :D Just so we are c...   Mar 21 2023, 10:18 AM
technicalninja   Yep, I'm sorry I may have added to the confusi...   Mar 21 2023, 10:39 AM
Superhawk996   How did Porsche expect technicians to be able to ...   Mar 21 2023, 11:16 AM
Type 47   [quote name='technicalninja' post='3066759' date=...   Mar 21 2023, 02:11 PM
ClayPerrine   Just so you know, the 009 is a terrible distributo...   Mar 21 2023, 10:48 AM
Type 47   Just so you know, the 009 is a terrible distribut...   Mar 21 2023, 03:00 PM
nditiz1   009 should have no problem getting to the base. I...   Mar 21 2023, 11:28 AM
technicalninja   [quote name='technicalninja' post='3066759' date=...   Mar 21 2023, 12:08 PM
cgnj   Hi, You never said what fixed your no start proble...   Mar 21 2023, 01:29 PM
Type 47   Hi, You never said what fixed your no start probl...   Mar 21 2023, 01:53 PM
technicalninja   Just looked at the link provided for syncing carbs...   Mar 21 2023, 02:26 PM
nditiz1   There are definitely different levels of cleaning....   Mar 21 2023, 06:37 PM
Type 47   There are definitely different levels of cleaning...   Mar 21 2023, 08:13 PM
ChrisFoley   That red line on your impeller is the 27 degree ma...   Mar 22 2023, 05:23 AM
bossboy302   TYPE 47: you never have explained how you got from...   Mar 22 2023, 11:40 AM
Type 47   TYPE 47: you never have explained how you got fro...   Mar 22 2023, 02:48 PM


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