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| ctc911ctc |
Oct 9 2025, 07:43 AM
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#1
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,301 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States
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1970 - 914-6 All stock
Got the car off the rack after a 1 year clean up documented here: http://www.914world.com/bbs2/index.php?sho...3371&st=100 - tightened the lugs, check one more time for leaks....... Car started first try, backed out of the driveway and went around the block Drive strong.....very strong...... #2 cyl-carb is still 'spitting' definitely not backfiring. Chasing this through my trusty guide: https://www.performanceoriented.com/special-procedures-1 See "notes" section Seems that when I performed the Lean Best Idle procedure #2 failed during the procedure......the diagnosis within the document states that either the path in that carb #2 is blocked or the jet is the wrong size - my bet is a clog......though the carbs were very clean when I got the car. There is a little noise from the right side, that in a 914-2L 4Cyl would be considered quiet, my hope is that it is not valve noise and may be exhaust leaking......did I tighten the heater manifold small nuts????? dry.gif Carb advice sought from those that have chased a SPITTING Carb |
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| rgalla9146 |
Dec 13 2025, 06:47 PM
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#2
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 4,930 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None
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I just started (6pm) my dead stock 6 after it sat outside since 11 am in 35 degree temp. Ignition on, fuel pump running, pump gas four times, hand throttle full up. Started quickly and raced to high RPM, I immediately moved the throttle gradually down, engine speed reduced and continued to run smoothly. After less than a minute I was able to push the throttle fully off allowing the car to idle as normal. The hand throttle is the choke with these carbs. There is no other cold start mechanism, except for your right foot. With sufficient gas and coordinated hand throttle, good results should happen. With time you will become better at judging how to respond to outside temp and hot or cold engine. Cary have you determined what venturies, mains, idles, air corrections and emulsions are in the carbs ? |
ctc911ctc SPITTING CARB - 914-6 all stock Oct 9 2025, 07:43 AM
Superhawk996 Unclear on the question here?
You need to resolv... Oct 9 2025, 08:41 AM
ctc911ctc Thank you for the reply SH,
I was more or less lo... Oct 9 2025, 09:34 AM
slivel
Thank you for the reply SH,
I was more or less l... Oct 9 2025, 10:07 AM
Superhawk996 Anytime carbs are apart it’s good standard pract... Oct 9 2025, 09:57 AM
infraredcalvin
Goes without saying - make sure valves are adjust... Oct 9 2025, 11:15 AM
ctc911ctc This is the exact guidance I was looking for, than... Oct 9 2025, 10:42 AM
ctc911ctc Less than 1 hour of run time between now and this ... Oct 9 2025, 11:19 AM
Superhawk996
Less than 1 hour of run time between now and this... Oct 9 2025, 11:46 AM
ctc911ctc Understood - good solid engineering exercise......... Oct 9 2025, 12:49 PM
930cabman weak/broken valve spring?
or some other issue wi... Oct 9 2025, 12:49 PM
ctc911ctc UPDATE!!!!!!!
Teener... Dec 13 2025, 02:28 PM
Cairo94507 I remember the 6's I've had that still has... Dec 13 2025, 03:41 PM
fixer34
I just started (6pm) my dead stock 6 after it sa... Dec 14 2025, 07:58 AM
mate914
I just started (6pm) my dead stock 6 after it s... Dec 14 2025, 08:05 AM
930cabman Guess I'm lucky to have a 914/6 conversion and... Dec 14 2025, 10:16 AM
brant Measure the volume from the accelerator pump diagr... Dec 14 2025, 10:36 AM
gereed75 Agree with everything here except one thing- the h... Dec 14 2025, 11:18 AM
930cabman
Agree with everything here except one thing- the ... Dec 14 2025, 04:35 PM
ctc911ctc Thank you all teeners for the replies, here are so... Dec 14 2025, 08:24 PM
930cabman Idle passageways plugged? drill/grind away the lea... Dec 15 2025, 02:00 PM
ctc911ctc
Idle passageways plugged? drill/grind away the le... Dec 15 2025, 02:51 PM
930cabman
Idle passageways plugged? drill/grind away the l... Dec 15 2025, 02:57 PM
Ninja Not hard to flush the circuits but if the critter ... Dec 15 2025, 03:06 PM
930cabman
Not hard to flush the circuits but if the critter... Dec 16 2025, 05:53 PM
ctc911ctc Great notes Ninja, comments added within
Not h... Dec 16 2025, 07:38 PM
Ninja Just re-read thread. You're stock so the origi... Dec 15 2025, 04:02 PM
Ninja Double post gremlin got me again! Dec 15 2025, 04:02 PM
ctc911ctc Hi,
I came back to this car after a few major tri... Feb 14 2026, 11:41 AM
porschetub
Hi,
I came back to this car after a few major tr... Feb 14 2026, 11:25 PM
Superhawk996
here are the plugs – the 1,2,3 plugs look goo... Feb 15 2026, 12:07 AM
Ninja Clean plugs, check float levels, run again.
If al... Feb 14 2026, 02:01 PM![]() ![]() |
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