| Slant Six Forum https://slantsix.org/forum/ |
|
| Got a skip coming from the back three... Conclusion, maybe https://slantsix.org/forum/viewtopic.php?t=48359 |
Page 3 of 3 |
| Author: | hantayo13 [ Sat Apr 28, 2012 11:11 am ] |
| Post subject: | |
once you get it fired back up....warm it up...slowly pour a pint of cold water thru carb ,keep it revved so not to stall.....takes all carbon out .....dont do it in garage |
|
| Author: | wjajr [ Sat Apr 28, 2012 12:05 pm ] |
| Post subject: | |
[quote]slowly pour a pint of cold water thru carb[/quote] Should I use hard or soft water, tidal water, tonic water, lite beer, or spunk water? Mail Nazi: “No Gaskets for you.†G.D. USPS can’t make two day delivery from Ohio, according to USPS tracking the damn things are sitting at the local sorting station ten miles from here. The package went from Ohio to southern Maine in 24 hours, the last 150 miles to my door is going to take almost three days. The PO never disappoints, I’m more often than not POe’d with their crappy priority service. Nice vendeor choice Summit. I think I’m going to slowly pour a pint of Guinness down my gullet instead. LOL |
|
| Author: | hantayo13 [ Sun Apr 29, 2012 5:48 am ] |
| Post subject: | |
cold fresh tap water ...do not get salt water from the bay LOL.....better drink another pint for me |
|
| Author: | wjajr [ Mon Apr 30, 2012 4:13 pm ] |
| Post subject: | |
hantayo13: [quote]cold fresh tap water ...do not get salt water from the bay LOL.....better drink another pint for me[/quote] I did spray some plain old well water down the carb after the “heat sink†phase of commercial decarbonizer treatment. It didn’t do anything. Sadly that was my last Guinness. :( |
|
| Author: | wjajr [ Mon Apr 30, 2012 4:14 pm ] |
| Post subject: | |
I got Skippy all buttoned up this afternoon. Still have the skip, however vacuum gage is steadier at 1100 rpm idle, it quivers only +/- ½ in Hg verses an inch or more. Engine is showing better air fuel mixture per o2 sensor as in not as lean at idle as before, but now cycling between ideal and rich. The new adapter gasket and “Good Gasket†must be doing something positive, as I take this to mean vacuum leak previously undetected has been corrected. While waiting for some body work to dry, I ran a dose of decarbonizer through the engine. Not much white smoke and not much difference in skip. I’m now suspecting a poorly lashed valve due to it sticking. Tomorrow I will check the back three’s lash with a jaundiced eye for #6, hopefully I can detect which valve or valves are offending. I’m running out of ideas on this. |
|
| Author: | hantayo13 [ Mon Apr 30, 2012 5:52 pm ] |
| Post subject: | |
if engoine is carboned up ...cold water into arm engine will produce coupous amount of black smoke no carbon = no black smoke |
|
| Author: | THOR [ Tue May 01, 2012 12:51 pm ] |
| Post subject: | |
SEAFOAM! Makes a wonderful smoke-show assuming you have it all carb-owned up. Have used it on many of the Jalopies I've owned, and it does help if you are fouled. It's $10 a can, so what's to lose? Don't do it close to neighbors if you can avoid it. ~THOR~ |
|
| Author: | wjajr [ Wed May 02, 2012 2:56 pm ] |
| Post subject: | |
Here is what I have figured out on my slant five point five: Valves are sealing properly. Vacuum leaks have been abated excepting on the cusp excessive sloppy throttle shafts. Cylinders 1-5 exhibit same pressure build-up during compression test; compression strokes 1-4 read 100psi, 130 psi, 140 psi, and 150 psi. Cylinder #6 has lower readings: Strokes 1-4 read 80 psi, 100 psi, 130 psi, and 140 psi. Squirting a tea spoon of motor oil into #6 yielded compression stroke readings 1-4 of; 130 psi, 150 psi, 160 psi, and 170 psi. It looks as if I have a ring problem in #6 causing low compression. Each reading is within 20 psi of its adjacent cylinders. The skip that can be heard from the exhaust is not a misfire, but what I believe to be a lower energy compression stroke. Yesterday I introduced some de-carbonizer to number’s 4. 5, & 6 via the secondary throttle plates of the 4V carburetor. Previously I had introduced this elixir using the vacuum tap located at base of carburetor, and I think that it did not fully permeate the back three. All that aside, I also introduced about a half can of carburetor cleaner via all four barrels in measured squirts, and the “skip†for lack of a better term, diminished. Additionally, I suspect that this one weak cylinder is and has been all along causing carburetor tuning issues, due to crappy idle vacuum signal. Bill |
|
| Page 3 of 3 | All times are UTC-07:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|