 Brain fart question 914-6 |
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| mb911 |
 Jan 2 2024, 05:32 PM
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#21
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914 Guru  Group: Members Posts: 7,598 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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So I am helping a member put brakes on his 914-6 conversion and then put carbs on it. He previously has a poor working sniper setup. It ran ok prior according to him. Then they switched to a 123 dizzy and removed the MSD ignition and then took to a tuner prior to my part. It ran much worse once the 123/MSD removal. The owner decided he was done with his sniper setup and asked me to put carbs on. I did that and for the life of me we can’t get it to run right. Starts pretty easy and idles decent. When I go to throttle up by hand on the cross bar it doesn’t want to accept all the fuel and shoots quite a bit back up through the horns. My suspicion is a major timing issue as in 180 off. The carbs are new and setup up by Dave Chenny so very confident in them. Seeing as the car is 1.5 hours away each visit I am looking for a bit coaching here. What else should I be looking at? The engine is a fresh 2.7 not built by me with about 1000 miles on it.
Help with some ideas please. |
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Posts in this topic
mb911 Brain fart question 914-6 Jan 2 2024, 05:32 PM
Rufus What make & model carbs?
Has any attempt been... Jan 2 2024, 05:51 PM
mb911
What make & model carbs?
Has any attempt bee... Jan 2 2024, 05:54 PM technicalninja
What else should I be looking at? The engine is a... Jan 2 2024, 05:59 PM mb911
What else should I be looking at? The engine is ... Jan 2 2024, 06:06 PM sixnotfour It will run with one cam 180 out,,, check exhaust ... Jan 2 2024, 06:01 PM sixnotfour Id check cam timing ,, what cam,,, maybe wrong set... Jan 2 2024, 06:03 PM mb911
Id check cam timing ,, what cam,,, maybe wrong se... Jan 2 2024, 06:07 PM Rufus Great re balancing. One obvious thing out of the w... Jan 2 2024, 06:07 PM Rufus Duplicate post. Jan 2 2024, 06:08 PM Rufus “Starts pretty easy and idles decent.”
This l... Jan 2 2024, 06:11 PM mb911 Maybe the valves are too tight. That will be a che... Jan 2 2024, 06:12 PM Rob-O Well, to me I’d look at the 123 timing. 180 out... Jan 2 2024, 06:13 PM mb911
Well, to me I’d look at the 123 timing. 180 ou... Jan 2 2024, 06:18 PM mate914
Well, to me I’d look at the 123 timing. 180 o... Jan 2 2024, 07:28 PM Rufus
Id check cam timing ,, what cam,,, maybe wrong s... Jan 2 2024, 06:16 PM technicalninja I'd "baseline" that first.
I've ... Jan 2 2024, 07:21 PM SirAndy It'll idle but run like shit with the dizzy 18... Jan 2 2024, 07:34 PM mb911
It'll idle but run like shit with the dizzy 1... Jan 2 2024, 07:39 PM technicalninja
It'll idle but run like shit with the dizzy 1... Jan 2 2024, 08:00 PM Root_Werks Check plug wires, probably a few crossed. Jan 2 2024, 08:17 PM mb911
Check plug wires, probably a few crossed.
Chec... Jan 3 2024, 05:21 AM Rufus
It'll idle but run like shit with the dizzy 1... Jan 2 2024, 08:24 PM infraredcalvin Spitting back through the carbs is a lean conditio... Jan 2 2024, 10:01 PM Retroracer
So I am helping ...The owner decided he was done ... Jan 2 2024, 11:13 PM mb911
So I am helping ...The owner decided he was done... Jan 3 2024, 05:21 AM flyer86d Ben,
Did I read that when the MSD was removed, it... Jan 3 2024, 06:12 AM mb911
Ben,
Did I read that when the MSD was removed, i... Jan 3 2024, 08:36 AM ClayPerrine What year is the motor? The SC motors turn the di... Jan 3 2024, 06:25 AM mb911
What year is the motor? The SC motors turn the d... Jan 3 2024, 08:28 AM Ishley Check distributor…. Plug wires… change the plu... Jan 3 2024, 09:49 AM mb911
Check distributor…. Plug wires… change the pl... Jan 3 2024, 11:36 AM technicalninja
What year is the motor? The SC motors turn the d... Jan 3 2024, 11:51 AM mb911 I posted a video on FB 914 world page and some hav... Jan 3 2024, 12:24 PM Root_Werks
I posted a video on FB 914 world page and some ha... Jan 3 2024, 12:36 PM mb911
I posted a video on FB 914 world page and some h... Jan 3 2024, 01:28 PM technicalninja Compression test will show if intake cam timing is... Jan 3 2024, 12:55 PM mb911
Compression test will show if intake cam timing i... Jan 3 2024, 01:29 PM mb911 I also wonder if the builder put pistons in upside... Jan 3 2024, 01:31 PM mepstein
I also wonder if the builder put pistons in upsid... Jan 3 2024, 02:00 PM mb911
I also wonder if the builder put pistons in upsi... Jan 3 2024, 02:04 PM technicalninja Evidence of monkeys... Jan 3 2024, 02:12 PM mb911
Evidence of monkeys...
Yes Jan 3 2024, 02:33 PM Justinp71 If fuel pressure is good and spark is good and in ... Jan 3 2024, 05:34 PM rick 918-S Question: does the 2.7 have the FI heads from a CI... Jan 3 2024, 06:18 PM infraredcalvin Interesting on the cam timing 180 out…. Ive read... Jan 3 2024, 06:49 PM mb911 So after some PMs from a member I think this shoul... Jan 3 2024, 06:53 PM rick 918-S I suggest a vacuum gauge. You can balance the indi... Jan 3 2024, 07:13 PM mb911
I suggest a vacuum gauge. You can balance the ind... Jan 3 2024, 07:39 PM mb911 Update.
No vacuum leaks,changed plugs, compressio... Jan 4 2024, 11:41 AM Root_Werks
Update.
No vacuum leaks,changed plugs, compressi... Jan 4 2024, 12:34 PM mb911
Update.
No vacuum leaks,changed plugs, compress... Jan 4 2024, 03:20 PM Justinp71 Could use a spark tester and see the spark strengt... Jan 4 2024, 12:17 PM Justinp71 Also I would still replace the fuel filters too. I... Jan 4 2024, 12:23 PM mb911 So I completed what I could. I don’t have time t... Jan 4 2024, 03:23 PM  |
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