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Re: 440 Rough Running-A bit at least
[Re: toyotajeep]
#991259
05/14/11 12:32 PM
05/14/11 12:32 PM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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Quote:
Without starting the usual carb fight, I do have a 3310 that I have ran on other rigs. I may throw that on.
Thank you for your help. I will get it going.....
ROB
 
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Re: 440 Rough Running-A bit at least
[Re: RemCharger]
#991260
05/14/11 11:37 PM
05/14/11 11:37 PM
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Joined: Mar 2003
Posts: 9,118
Rogue River, OR
Jeremiah
master
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master
Joined: Mar 2003
Posts: 9,118
Rogue River, OR
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Quote:
Quote:
Without starting the usual carb fight, I do have a 3310 that I have ran on other rigs. I may throw that on.
Thank you for your help. I will get it going.....
ROB
^100
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Re: 440 Rough Running-A bit at least
[Re: toyotajeep]
#991261
05/15/11 05:51 AM
05/15/11 05:51 AM
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Joined: Sep 2009
Posts: 263
Switzerland, Europe
Swiss_Robert
enthusiast
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enthusiast
Joined: Sep 2009
Posts: 263
Switzerland, Europe
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When you're going to check everything - check the spark plugs again.
I've had some similar problems with new plugs - one of them was somehow "bad". If you still have the old ones, give it a try and put them back.
Just to make sure...
After all these years having a 440 I realized that this means having an attitude... and a budget.
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Re: 440 Rough Running-A bit at least
[Re: Swiss_Robert]
#991262
05/16/11 03:39 PM
05/16/11 03:39 PM
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Joined: Jan 2004
Posts: 910
Southern Oregon
toyotajeep
OP
super stock
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OP
super stock
Joined: Jan 2004
Posts: 910
Southern Oregon
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Ok Update time. I jetted the carb richer, and followed the eddy manual to a T. It is better, but not done I now have a bit of a bog, but some of the irritation is gone. Here is what I have noticed so far: If I am accelerating, even gently, it is fine with no hesitation. If I cruise gently it does its bucking thing. Some good news is that the distributor has well in excess of .025 play at the top. Which is twice what it should be.....so the poster above is on the right track I hope. So back to the distributor. No worries, the kids and I like this stuff  And I will pull the plugs too. I should have an update this evening with the findings. FWIW- timing is 22 BTDC at idle, 35 at 2500 RPM both with the vacuum advance plugged. I'll be back. ROB
1989 Dodge Cummins & 1989 Dodge W-250
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Re: 440 Rough Running-A bit at least
[Re: Dodgem]
#991264
05/16/11 04:08 PM
05/16/11 04:08 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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plug the vac adv in for a quick test & see if it affects it (the bucking)
live every 24 hour block of time like it's your last day on earth
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Re: 440 Rough Running-A bit at least
[Re: toyotajeep]
#991265
05/16/11 04:10 PM
05/16/11 04:10 PM
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Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
1968RR
top fuel
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top fuel
Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
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Quote:
Ok Update time.
I jetted the carb richer, and followed the eddy manual to a T. It is better, but not done I now have a bit of a bog, but some of the irritation is gone.
Here is what I have noticed so far:
If I am accelerating, even gently, it is fine with no hesitation. If I cruise gently it does its bucking thing.
Some good news is that the distributor has well in excess of .025 play at the top. Which is twice what it should be.....so the poster above is on the right track I hope.
So back to the distributor. No worries, the kids and I like this stuff
And I will pull the plugs too.
I should have an update this evening with the findings.
FWIW- timing is 22 BTDC at idle, 35 at 2500 RPM both with the vacuum advance plugged.
I'll be back.
ROB
You may want to adjust your timing curve. At idle, 22 degrees seems like a bit much for your combo. Get a kit and open up the distributor. Try to get a curve that gets rid of the bog (maybe 15 degrees at idle and 35 all-in).
Also, using the 10% ethanol gasoline can cause a bog if your carb was originally tuned for pure gasoline.
Good luck.
"When I'm in a slump, I comfort myself by saying if I believe in dinosaurs, then somewhere, they must be believing in me. And if they believe in me, then I can believe in me." - Mookie Wilson
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Re: 440 Rough Running-A bit at least
[Re: toyotajeep]
#991266
05/16/11 04:45 PM
05/16/11 04:45 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
They give you a matrix with different percentages to change the settings. Should I go clear to the Rich settings and then see what that does?
I would say that I am feeding close to 100 more cubes than the carb is designed for so I think it would work.
Yes I agree with you, that 1405 is gonna be lean on a 440. I think it will run fine on a 440 but it is gonna need smaller rods and bigger jet's. for sure, imo. I have run the 1405 for 20 years now all around the US. From Pikes peak to Key west. I have tuned that carb a lot. There's nothing wrong with them. Jet it up and I'm sure it will help.
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Re: 440 Rough Running-A bit at least
[Re: Challenger 1]
#991267
05/16/11 05:56 PM
05/16/11 05:56 PM
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Joined: Jan 2004
Posts: 910
Southern Oregon
toyotajeep
OP
super stock
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OP
super stock
Joined: Jan 2004
Posts: 910
Southern Oregon
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I haven't driven it yet but we found the distributor was way out of whack. I now have 18 degrees initial, with 35 at 2500 RPM, vacuum advance off.
Also, the reluctor gap is much tighter and my timing is not bouncing all over the place.
I'll report back after the test drive.
Rob
1989 Dodge Cummins & 1989 Dodge W-250
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Re: 440 Rough Running-A bit at least
[Re: Dodgem]
#991269
05/16/11 09:39 PM
05/16/11 09:39 PM
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Joined: Jan 2004
Posts: 910
Southern Oregon
toyotajeep
OP
super stock
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OP
super stock
Joined: Jan 2004
Posts: 910
Southern Oregon
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OK. Update time. Runs even better. I put some smaller diameter metering rods in it since lunch and it is snappier, and the bog seems to be gone. I ran it without the vacuum advance hooked up. Still has a slight (very slight now) miss going on. It is so minor that I may be getting it confused with some other things. Hooked it back up, it is basically the same. I should note that it has 3" exhaust with those cheap Flowmaster knock offs that Summit carries. So anything that is slightly off is amplified by the exhaust. Although it is really not that loud. One thing I really noticed is that it is quite sensitive to timing. 32 total at 2500 is not enough, and 38-39 is too much. No more bouncing around on the timing with the distributor fixed. I pulled some plugs (4 of them) they were all a light grey. They are Autolite 85's. I am going to do some driveline work tomorrow, and plug wire clean up and rerouting etc. and check the plug gaps etc. and then take it for a real spin. I know to some people it may seem like I have fiddled with this forever, but it is learning time. I have spent essentially zero $ on all of this and have made a lot of progress. Much of it is due to the help of this board for which I am much obliged. It has been somewhat fun too, the kids like it. And yes, I will be adding a real carb in the next few weeks. This carb is just temporary for now to get the car going. My 3310 needs some very serious TLC, so I will likely run one of my Thermoquads next. Quick question, what do you gap your plugs to? .035 or more? More information to follow tomorrow most likely.
1989 Dodge Cummins & 1989 Dodge W-250
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Re: 440 Rough Running-A bit at least
[Re: toyotajeep]
#991273
05/17/11 01:17 AM
05/17/11 01:17 AM
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Joined: Mar 2003
Posts: 9,118
Rogue River, OR
Jeremiah
master
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master
Joined: Mar 2003
Posts: 9,118
Rogue River, OR
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Quote:
My 3310 needs some very serious TLC, so I will likely run one of my Thermoquads next.
What does the 3310 need?
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Re: 440 Rough Running-A bit at least
[Re: Jeremiah]
#991274
05/17/11 08:26 AM
05/17/11 08:26 AM
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Joined: Jan 2004
Posts: 910
Southern Oregon
toyotajeep
OP
super stock
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OP
super stock
Joined: Jan 2004
Posts: 910
Southern Oregon
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I thought about this since you asked. It leaks a bit here and there. I think most of it is the front bowl fitting. But it never has idled at all hardly. No adjustment etc. is fixing that. But.........when I was installing it on my good running 460 the other day I noticed that it was rocking when bolting it down. I think the base plate is warped. I never really thought to check that.....but if it was, it would make sense. I seems to run decently outside of idle. I also picked up another parts carb that is the same model last fall. I'll get them together and see what I can come up with. The car is fast (to me, rookie 440 guy) , in a mild DD type of way. I will say though, that I am sure I am leaving alot of HP on the table. Today is driveline work and some wiring clean-up day. I have several of my students that are really into this thing. One of my freshmen can take the distributor apart and put it together on his own and do a good job of it. He has a lot of promise.... 
1989 Dodge Cummins & 1989 Dodge W-250
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Re: 440 Rough Running-A bit at least
[Re: toyotajeep]
#991275
05/27/11 10:36 AM
05/27/11 10:36 AM
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Joined: Jan 2004
Posts: 910
Southern Oregon
toyotajeep
OP
super stock
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OP
super stock
Joined: Jan 2004
Posts: 910
Southern Oregon
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Update time.
I took the car home from the shop and got busy with other stuff around my house etc.
I ended up putting the small Eddy that was on the 440 back on my F..d 460. Guess what, it runs the same on that engine. Crisp, clean down low..........and a higher rpm miss type of a sound, just like my car.
So, I am going through my 750 this weekend. I have new gaskets and a complete unmolested parts 750 that is the same PN.
We'll see what results I get from the Holley.
Just an update. More to come.
ROB
1989 Dodge Cummins & 1989 Dodge W-250
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Re: 440 Rough Running-A bit at least
[Re: toyotajeep]
#991276
06/03/11 12:38 AM
06/03/11 12:38 AM
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Joined: Jan 2004
Posts: 910
Southern Oregon
toyotajeep
OP
super stock
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OP
super stock
Joined: Jan 2004
Posts: 910
Southern Oregon
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OK. I know a few of you (including myself) hate it when there is a post and no update. So here we go........
I took two 3310-2 750's to work. One I had gone through last year and used the blue gaskets. For whatever reason it never would idle right etc. I personally think it had been messed with by a PO at some point. Leaked etc. I was not a fan of it.
So I took my other carb that I really don't think anyone had ever been inside of and combined them. Cleaned everything out etc.
Results:
Runs real nice. Good even vacuum around 16 Inches. Nice secondaries. No leaks and so forth.
There is still a very slight issue at a constant speed, but it is nothing like before. It could be the 3" exhaust with dumps etc.
Power is mucho better. I would say the engine is happier acting and whatever HP I picked up, it was worth it.......It feels like a 440 in an A body.
I should be driving it to work soon, and I will give an update after I get some miles on it next week.
*One EZ Question- I have 70 jets in it, and the other had 72's, is there likely much to be gained by switching right now?
Thanks for the advice.
ROB
1989 Dodge Cummins & 1989 Dodge W-250
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