shellac, so it had sat for a long time b4 I ever got it.I need to tune it for emissions and I can't even find a mechanic who wants to touch it.That is why I thot I would take a try on here to see if it is possible to make do.I just retired and I depend on Uncle Sam for whatever comes every month.No great shakes in THAT paycheck !! lol. Also, I was wondering what kind of gas mileage I should expect to get with this combo and are there better alternatives?(other than parking it).I went to Payson here which is about 95 miles and averaged about 5 mpg.It ran ok but as I say, it seemed to lug on hills. Also I note that on revving it from warmup, it puts out black soot,but doesn't smoke going down the road as far as I could tell. I will try and tune this carb using the glass of water trick but have no specs on it otherwise. As one person suggested, maybe an edelbrock would fix it.Another person suggests fuel pump pressure and that is something I will check as well. Thanks for the help,everyone. Don in Chandler.
wallynm <[EMAIL PROTECTED]> wrote:
--- In [EMAIL PROTECTED], don rutledge <[EMAIL PROTECTED]> wrote:
> I already bungled the first message. The engine IS a 440 Chrysler
and the Carb IS a THERMOQUAD 4 bbl. I do not know all of the history
on the RV as it was stolen and recovered and then I wound up with it.
Mistreated is a gentle word, but it is all I can afford and need to
make it run good. Engine is fine otherwise. I have watched this forum
for awhile now, and I figger you guys have most of the answers out
there. thanks for any input! Regards, don.
To my way of thinking the 413 was a better MH engine than the 440. I
have owned both. In 78 there were not a lot of vacuum lines on this
engine but I would carefully check for vacuum leaks as suggested.
I would also check fuel pump pressure and then the jet size for your
elevation. You may need an electric fuel pump located near the gas
tank feeding the mechinical pump up front to get enough fuel at full
power. You can bump the timming from 1 to 2 degrees per 1000 foot of
elevation without hurting any thing and will get more power.
If I were to replace the carb I would look for a Holly 650 to 850 cfm
double pumper with external floats adjustments. The thermoflood carb
has pheonolic (sp) resin float bowels and maybe even floats the fail
over time.
Another trick is to put duel exhaust on it with a cross over pipe to
reduce back pressure. I ran glass packs and then strights for a while
just to listen to the rumble.
GOOD LUCK AND ENJOY
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