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Topic Review (Newest First)
11-15-2012 07:17 PM
Timmy-Boy
Quote:
Originally Posted by LATECH View Post
Could be a bad pump, pinched or collapsed suction line, or plugged strainer in the gas tank.
You can check pump health and strainer restriction with the gauge I mentioned before.
Thank you for the info. This is what I had originally thought It was.
11-15-2012 05:24 PM
LATECH
Quote:
Originally Posted by LATECH View Post

Bogging sounds more like fuel starvation to me, also sounds like it does OK when you feather down on the gas, so I would start at the carb.
Fuel delivery could be an issue, so you might want to check fuel pressure as well.

item number 93547 at HF
Could be a bad pump, pinched or collapsed suction line, or plugged strainer in the gas tank.
You can check pump health and strainer restriction with the gauge I mentioned before.
11-15-2012 05:11 PM
Greg T
Quote:
Originally Posted by Timmy-Boy View Post
I can reach about 45 easily if i slowly accelerate. Thats all the faster Ive had a chance to get it up to though.
You may want to check for fuel delivery problems such as pinched line, plugged filter, or failing fuel pump.
11-15-2012 02:55 PM
Timmy-Boy
Quote:
Originally Posted by Greg T View Post
Are you able to cruise at hiway speeds okay, but not accelerate? Can you reach hiway speed easily if you don't give it too much throttle, or does it not want to really go that fast?
I can reach about 45 easily if i slowly accelerate. Thats all the faster Ive had a chance to get it up to though.
11-15-2012 07:59 AM
Greg T
Quote:
Originally Posted by Timmy-Boy View Post
Ok so let me try and explain a little bit better what happens. When you push down the accelerator If you push It down a tad to much It bogs down and seems like the motors about to die. The car slows down a lot! You have to let off and slowly push It down to keep going. It seems to do It no matter what speed your going.
Are you able to cruise at hiway speeds okay, but not accelerate? Can you reach hiway speed easily if you don't give it too much throttle, or does it not want to really go that fast?
11-15-2012 07:39 AM
Timmy-Boy Ok so let me try and explain a little bit better what happens. When you push down the accelerator If you push It down a tad to much It bogs down and seems like the motors about to die. The car slows down a lot! You have to let off and slowly push It down to keep going. It seems to do It no matter what speed your going.
11-15-2012 07:25 AM
Greg T I don't see that we've determined it's actual bog rather thn a simple hesitation upon tip-in. A bog is s serious dead spot where the motor refuses to accelerate when the throttle is opened and the vehicle actually slows. A hsitation, however, is a quick blip that cures itself in a second and shows no symptoms again until the throttle is taken from idle to open. I think we should learn more about the symptom before throwing out a million cures for what we have yet to determine.
11-15-2012 12:33 AM
gearheadslife back up..
your bog.. can be from simple stuff.. from float level being wrong. to the vac. advance can being junk or stuck from lack of use..
start with the basics.. the carb adjusted wrong could be all thats needed to fix your problems..
get a motors manual for your years and start with basic tune up stuff first
11-14-2012 10:33 PM
Timmy-Boy Theres no way Its a dog lacking power issue. There is something wrong. Would It be a good idea for me to maybe just replace the timing chain and do all the timing then? And maybe look into an HEI to put on once i did all that.
11-14-2012 10:00 PM
Custom10 Link to TDC verification,,,good stuff

http://www.crankshaftcoalition.com/w...op_dead_center

dont let all this over whelm you, take'r cool and have fun, enjoy your car
11-14-2012 09:54 PM
Custom10 Base plate may be part of the carb kit, ask the parts guy,,,

Well you asked about timing, the bogg issue could be related to that but hard to say if this is the cure, most boggs are carb/fuel delivery from my perspective but maybe you just think it is a dog lacking power and refer to this as bogg? getting the timing right will improve performance

To get timing right you first need TDC to be verified. This involves setting the balancer/dampner 0 mark to line up to the timing pointer exactly when piston #1 is at top dead center.

You would be best advised to use a piston stop along the way which is the only specialty tool needed to do this first part. You can make one with an old plug and a bolt & nut

Seach the crankshaft coalition data base, i dont have the link to the TDC proceedure right now.

Got a timing light and a vacuum gage? these are needed

My method would involve finding out were you are at first as far as base timing at idle, mechanical advance through an RPM range from idle to 3500 rpm and vacuum advance if so equiped, these are the three common aspects of setting up the timing. Before you really dig in a clean fully functional distributor is a good place to start, if the thing is worn out then your wasting time and effort, if it is all dirty then it wont perform either.

Read up on the TDC verification, there are many threads as well that detail timing methods. See what you think of doing the TDC portion and let us know.
11-14-2012 09:45 PM
Timmy-Boy He has reciepts from the shop he had It done at though. I still plan to rebuild It. Thats pretty much inevitable now. But If It is a warped base plate what could I do about it?
11-14-2012 09:29 PM
69 widetrack It may be a good idea to check for vacuum leaks. Purchase a can of carb cleaner and spray around the base of the carb while the engine is running...make sure all vacuum lines are hooked up and not cracked. I have had a rochester 2bl carb with a warped base plate. See if that increases the idle speed or smooths out the idle...It's worth a try before you rebuild the carb.
11-14-2012 09:25 PM
techinspector1
Quote:
Originally Posted by Timmy-Boy View Post
So I understand that I should rebuild the carb. But after the previous owner telling me It had this problem before and after he had the carb rebuilt. It really leads me to believe that something else is cause the bogging.
Timmy, you're putting too much trust in human nature. Most people who say they have rebuilt a carburetor mean that they took it apart and replaced the gaskets. Most gearheads are carburetor-ignorant. You will be an exception to the rule. I can see you soaking all the parts in a can of carb cleaner, blowing out all the passages with compressed air and doing all the things that your new factory service manual tells you to do. There's a good lad......
11-14-2012 08:34 PM
Timmy-Boy So I understand that I should rebuild the carb. But after the previous owner telling me It had this problem before and after he had the carb rebuilt. It really leads me to believe that something else is cause the bogging.
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