Author Topic: Ever have problems with your mopar?  (Read 5055 times)

Offline Bullitt-

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Re: Ever have problems with your mopar?
« Reply #30 on: September 08, 2006 - 10:45:53 PM »
This sounds like one problem that you have not been able to find the solution to. It would not seem that all those carbs and 2 motors could NOT all have the same issue. Assuming that these and your ignition (electrical parts?) are not the problem it must be something not being looked at.     My moms '74 Monaco 360 2brl since it was new would hesitate, backfire and often die under acceleration from a stop. The dealership and several mechanics could never improve much upon the situation. At some point when the car was 3+ years old I got the idea to replace the choke thermostat(bi-metal coil that mounts in the intake) the problem was solved.  Also the Thermoquads,  which I have had several & rebuilt with varying degrees of success, have linkage that keeps the secondaries from opening when the choke is engaged, don't know about the Hollies, but if the linkage isn't working properly they will open too soon & dump raw fuel before the choke is open completely, therefore if the choke was not opening properly I might expect a simialar situation as the Monaco had.
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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Offline pettybluecuda

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Re: Ever have problems with your mopar?
« Reply #31 on: September 08, 2006 - 11:36:00 PM »
I have a new double roller in it now and in the last engine it was a little over a year old. The distributor is nos. So im not sure. I dfont know what to think.

Offline pettybluecuda

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Re: Ever have problems with your mopar?
« Reply #32 on: September 08, 2006 - 11:40:22 PM »
This sounds like one problem that you have not been able to find the solution to. It would not seem that all those carbs and 2 motors could NOT all have the same issue. Assuming that these and your ignition (electrical parts?) are not the problem it must be something not being looked at.     My moms '74 Monaco 360 2brl since it was new would hesitate, backfire and often die under acceleration from a stop. The dealership and several mechanics could never improve much upon the situation. At some point when the car was 3+ years old I got the idea to replace the choke thermostat(bi-metal coil that mounts in the intake) the problem was solved.  Also the Thermoquads,  which I have had several & rebuilt with varying degrees of success, have linkage that keeps the secondaries from opening when the choke is engaged, don't know about the Hollies, but if the linkage isn't working properly they will open too soon & dump raw fuel before the choke is open completely, therefore if the choke was not opening properly I might expect a simialar situation as the Monaco had.

I have installed a nos choke as well, but I havnt realy thought about the linkage, that is one thing that hasnt been replaced. I may have it set in the same location. I will check it out!

Offline Bullitt-

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Re: Ever have problems with your mopar?
« Reply #33 on: September 08, 2006 - 11:57:43 PM »
Here is something else that I have JUST started to get an understanding of
"Idle transfer slots


--------------------------------------------------------------------------------
Pay close attention to the idle transfer slots(rectangular)in the front of the primary bores of the base plate. When the carb is correct in cfm's and jetting, the slots will only show a square when the butterflies are in the normal idle postition. If the slot is a rather large exposed area, the carb will need the inital timing bumped up which will increase the idle speed and will allow the idle speed screw to be backed down, thus exposing less of the transfer slot. If the slot is less than a square, back off the inital timing and crank up the idle speed.
"
http://thermoquads.com/page204.html

Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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Offline cudabuyer

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Re: Ever have problems with your mopar?
« Reply #34 on: September 09, 2006 - 04:23:40 AM »
As soon as the 1 year conversion of all mechanicals are complete - it will be topless (car, not me)  :working: driving for the challenger
70 Dodge Challenger Convertible 6.1 Hemi


Offline 4Cruizn

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Re: Ever have problems with your mopar?
« Reply #35 on: September 09, 2006 - 11:56:11 AM »
From what I have read of this thread pettyblue . . . you have a sweet car with alot of things already is great condition . . . but this one problem I think has you discouraged.   Once you figure it out, I think you will find you car will run and not give you so many problems.   From what you have said, to try 2 engines and many carbs all with the same results , your problem lies somewhere else.   

 :clueless:  :clueless:  :clueless:


Is your gas tank vented?? 

Offline Plum6Pak

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Re: Ever have problems with your mopar?
« Reply #36 on: September 09, 2006 - 12:59:30 PM »
Not a can of worms Pettyblue, just a lot of different Mopar owners with different experiences. You'd get that with any car. Can't say I've had worse or better success with my Mopars over the years as far as needing a lot of maintenence or repairs but I can say if there was a problem it was usualy pretty specific and I could repair it and go on driving. They will take a pounding better and longer from what I've experienced. Once you get the bugs out, shouldn't be a problem for you beyond normal wear and tear.  :2cents:

Offline pettybluecuda

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Re: Ever have problems with your mopar?
« Reply #37 on: September 09, 2006 - 01:56:02 PM »
Is the gas tank vented? When I pulled it down, it had the four hoses coming from the rear out...There is a cutout like the 70 and 71 in the trunk but it has a tin plate over it with appears to be factory seam sealer.  So I dont know what the deal is with that.

Offline Bullitt-

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Re: Ever have problems with your mopar?
« Reply #38 on: September 09, 2006 - 04:41:34 PM »
Vent for gas tank on 72+ was accomplished with a sealed system running back to the carb thru the charcoal canister. A clogged canister or more commonly a disconnected & capped off vent can create a vacuum in the gas tank which leads to problems such as fuel starvation. If your not sure the quick & easy check is to take off your gas cap & see if the problems go away.
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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Offline chevyconvert

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Re: Ever have problems with your mopar?
« Reply #39 on: September 10, 2006 - 09:50:15 PM »
What kind of supersport is it? 396 350?....

#'s 1967 SS/RS 350
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Offline moper

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Re: Ever have problems with your mopar?
« Reply #40 on: September 11, 2006 - 05:35:16 AM »
Petty, I dont know how much you do yourself, but I know some fellows who have spoent years trying to debug something they know very little about. If you're 23, there's a lot of things the factory manuals dont tell you. Also, all the guys buying NOS electronics and carbs and scuh....I worked at an old local dealer, and helped do the update and re-fit of the parts department. Not every NOS part was left around because it was perfect. I had several parts that came out of NOS boxes, but were NOS defectives that were never returned. Now those pcs would be worth hundreds, because you cant tell until one installs them, and the parts guys who bought the old inventory certainly aint gonna test them like I did. Usually it's electrical parts, but I did find a defective Thermoquad in a pile at one point. I've aldo seen NOS body parts that were twisted or very difficult to make usable. Anyway, my point is, "new" doesnt mean "good", and NOS doesnt mean "good" either. Everyone has thier limit to experience and subject knowledge. Perhaps you have reached yours? Maybe it's time to pay a pro, unless you've also reached the patience limit...lol. As far as your bog, if 2 engines did it, it's one  of the parts you put on both engines, or the person setting them up. Electrical generally causes poor running, but not bogs without other side effects. It's either cam timing, ignition timing, igition parts, or carb, or a combination of them. Keep after it. Keep asking questions. Otherwise you'll make someone a killer deal on a car you dont need to sell.

Offline kingtroll

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Re: Ever have problems with your mopar?
« Reply #41 on: September 11, 2006 - 06:53:37 AM »
It's just you...only kidding. I bought my car 3 months ago and still haven't really enjoyed it yet. I was recommended a mechanic so I brought my car over to fix a idling problem and check the brakes. That was before summer vacation started and I still don't have my car. I had to change headers, mufflers, rebuild transmission, change front tires, fix dash wiring, and I picked the slowest mechanic on the planet...no solar system.  I went by the shop the other day to check on it and it was on the lift that's when I noticed that I am going to have to replace the floor pans in the front.  The idling issue looks like too much cam and standard tranny so I am having a stall convertor put in. Brakes problem was due to the cam also making me lose vacuum so a vacuum reservoir was installed. All of the above hopefully will be complete this week. I called last week to check on when in heavens name was he putting the tranny back and was told he was testing driving it and to call back in a few. When I called back he told me that he had ran outta gas and when he put gas in it now it was running like crap. I will be going over there today to see what in the world is going on. I wish I was a mechanic but I am not. (computers is my thing) I am going to go over there today and try to keep calm he is a nice guy and all but he is absolutely taking too long to fix this car. Anyways so you see it's not only you. I think even with all the aggravation and all the up and downs it will be all worth it in the end. I just went to a local car cruise last sat and kicked myself for not bringing my camera (sorry guys). I will bring one on the next one and post picks. There were so many fords and chevys (corvettes) , no mopars. I was told after I left 3 cuda's showed up (damn it) . Anyways so you see when you get your mopar on the road especially an e-body it truly is something special. I asked the cruise organizer where were the mopars and his answer was they are expensive and grinned while saying it. Don't worry have faith it's not so easy or cheap to get that bad ass mopar on the road and to stay on the road but you are not alone. :money:
1974 Barracuda

 

Offline moper

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Re: Ever have problems with your mopar?
« Reply #42 on: September 11, 2006 - 10:07:48 AM »
It's not hard at all. Once things are in the shape they need to be. I spoke to  fellow who is 17, and bought his first car. It was "very hard to start"..it would crank and crank, never fire. Had spark, had fuel, had compression. What it didnt have was someone to tell him "pump the gas twice, then turn the key". He's 17. His cars were all EFI and had no idea what "setting the choke" or "kicking it down" were.

Offline Carlwalski

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Re: Ever have problems with your mopar?
« Reply #43 on: September 11, 2006 - 10:31:56 AM »


BTT - Not sure yet, neither car is completed it's restoration.
But, I'd say, a service every 6 months will keep them both reliable and up to date.

Good topic.  :cheers:
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Offline 1970RTSE

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Re: Ever have problems with your mopar?
« Reply #44 on: September 11, 2006 - 10:34:33 AM »
Kind of hard to fit your poll.  I usuallyhave no issues for several years then I go and do something stupid and break the car.   I did again racing it, so this winter, after 4 years of no fusses, I need to do a tear down and rebuild.  Oh well.