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by HalfaDave Wed Apr 17, 2024 7:28 pm
Cox Engine of The Month
Sure Start Runs Then Surges
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Re: Sure Start Runs Then Surges
Thanks again for the tip of going through the front. Never thought of it. But while I was trying from the rear of the backplate with little success, I took a peek again and saw a bunch of green gunk again. I will soak overnight then clean good tomorrow and blow it out before my next attempt. Will keep you all posted.
NEW222- Top Poster
- Posts : 3892
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Re: Sure Start Runs Then Surges
The way I clean a spraybar is to soak it then put the tube from my fueling syringe on the fuel inlet nipple drop the backplate in a cup of fuel and cycle the syringe.
Plug up needle hole and force fuel through metering orifice, suprizing how much fuel come out that little orifice.
Plug up needle hole and force fuel through metering orifice, suprizing how much fuel come out that little orifice.
crankbndr- Top Poster
- Posts : 3062
Join date : 2011-12-10
Location : Homestead FL
Re: Sure Start Runs Then Surges
Brake parts cleaner works really good too. Just don't let it spray back in your face. That's what I clean out old metal tanks with too.
Rusty
Rusty
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: Sure Start Runs Then Surges
Ok. Well, I finally got to the backplate today. I did clean it out well. I used a parts cleaner and blew it out. Screen is spotless, spraybar is clean from needle end to fuel nipple, and tiny hole in the venturi. Went to put it together and after reinstalling the original clear plastic reed and retainer, then gave it the 'test'. FAIL! I was easily able to get air movement in both directions. So, out come the scissors and a piece of floppy disk. While at it, made a stainless one too. Tried the floppy disk one, pass. Was assembling it then thought why not try the stainless one. So, back apart, remove reed, replaced with stainless, then tried the 'test' again. Pass. So, I assembled it with the stainless one in. I am hoping that in the next few days I will be able to have a chance at running it again, but not holding my breath as I will be very busy. But until then, I just wanted to give an update.
NEW222- Top Poster
- Posts : 3892
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Re: Sure Start Runs Then Surges
Good work. It'll run fine.NEW222 wrote:Ok. Well, I finally got to the backplate today. I did clean it out well. I used a parts cleaner and blew it out. Screen is spotless, spraybar is clean from needle end to fuel nipple, and tiny hole in the venturi. Went to put it together and after reinstalling the original clear plastic reed and retainer, then gave it the 'test'. FAIL! I was easily able to get air movement in both directions. So, out come the scissors and a piece of floppy disk. While at it, made a stainless one too. Tried the floppy disk one, pass. Was assembling it then thought why not try the stainless one. So, back apart, remove reed, replaced with stainless, then tried the 'test' again. Pass. So, I assembled it with the stainless one in. I am hoping that in the next few days I will be able to have a chance at running it again, but not holding my breath as I will be very busy. But until then, I just wanted to give an update.
Rusty
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: Sure Start Runs Then Surges
RknRusty wrote:Brake parts cleaner works really good too. Just don't let it spray back in your face. That's what I clean out old metal tanks with too.
Rusty
Funny how those cans do a 180 right back in your face, course I've never done that.
crankbndr- Top Poster
- Posts : 3062
Join date : 2011-12-10
Location : Homestead FL
Re: Sure Start Runs Then Surges
Shhh it might hear ya!crankbndr wrote:RknRusty wrote:Brake parts cleaner works really good too. Just don't let it spray back in your face. That's what I clean out old metal tanks with too.
Rusty
Funny how those cans do a 180 right back in your face, course I've never done that.
Last time I said something like that, it happened. (Bandit)
TDbandit- Platinum Member
- Posts : 897
Join date : 2014-12-01
Age : 52
Location : Riverdale Georgia
Re: Sure Start Runs Then Surges
Personally, I would opt for the softer reed to save wear on the backplate. It may not matter on the plastic backplate. Steel reeds are known to cause wear of the alloy tanks and a mylar reed would be a better choice. I guess a hard reed on a soft seat may not wear. Same as a soft reed on a hard seat. But steel on alloy could be a problem. I'm just thinking out loud here.NEW222 wrote:Ok. Well, I finally got to the backplate today. I did clean it out well. I used a parts cleaner and blew it out. Screen is spotless, spraybar is clean from needle end to fuel nipple, and tiny hole in the venturi. Went to put it together and after reinstalling the original clear plastic reed and retainer, then gave it the 'test'. FAIL! I was easily able to get air movement in both directions. So, out come the scissors and a piece of floppy disk. While at it, made a stainless one too. Tried the floppy disk one, pass. Was assembling it then thought why not try the stainless one. So, back apart, remove reed, replaced with stainless, then tried the 'test' again. Pass. So, I assembled it with the stainless one in. I am hoping that in the next few days I will be able to have a chance at running it again, but not holding my breath as I will be very busy. But until then, I just wanted to give an update.
(so to speak ).
Rod.
Just had a thought. Would it be possible for the ferric oxide to loosen from the floppy disk material while running and cause wear in the engine?
Oldenginerod- Top Poster
- Posts : 3969
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Sure Start Runs Then Surges
Oldenginerod wrote: Just had a thought. Would it be possible for the ferric oxide to loosen from the floppy disk material while running and cause wear in the engine?
The ones might cause wear but the zeros should not.
Sorry, couldn't resist. I've never seen anyone post about a problem.
George
gcb- Platinum Member
- Posts : 908
Join date : 2011-08-11
Location : Port Ewen, NY
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