262 is pop...pop...poping?

Unknown

I have got the Wasp running now but after a couple of seconds idiling very nice it starts to pop through the carb. As I give it more gas(floor it) the poping goes away. I have completly went through the fuel delivery droping the tank and running new line and a new glass fuel bowl. Once in awhile I will notice bubbles in the glass which tells me I have aleak somewhere and Im sucking air, however I dont think this will cause my poping, car starts up great, first turn of the key and after say 20 seconds it starts that miss,pop sound. Could this be timing or is my points not gaped correctly? or an air leak at a gasket on the carb or bad a plug. Just wondering if anybody had a similar problem with their Hudson. Pop sound is definetly coming from the carb with the occasional spray out once here and there.



Thanks



Brent

harry54

How is your exhaust ? I had a similar problem that was caused by fuel being post ignited in my leaky exhaust. The car was running rich and the fuel that didn't get burned in the cylinders was igniting in the leaky mufler. When I got the exhaust fixed and the carb set up correctly it went away and ran great.

Unknown

Well im pretty sure the exhaust is good however Im not so sure about the carb, it seems to start fine and idles ok and then it starts to pop. Im sure the carb has never been rebuilt its just funny how it goes away under hard acceleration it seems to be popping most when at mid-range. I dont see any smoke from the exhaust manifold so Im more leaning toward the carb or timing?



Thanks



Brent

kamzack

Hi Brent,

One thing you didn't mention is valves. If engine has been sitting for a long period natual moisture and oil vapors can be one of the causes of valves to stick. I'd suggest a compression check. Fuel foaming in the sediment bowl would indicate what you already know,but I'd check any rubber hose connections and fuel pump diaphram. Doesn't matter if pump is new or rebuilt, it can harden and be a source for the foam. Also at high RPM's a miss is hard to detect. If you have another fuel pump, I'd try that first, it's easier. Hope this helps and thanks for letting me share my 20 cents worth.

Kim

Unknown

I had a similar problem. It ended up being my condensor.

Terry

Unknown

Ok I did some more investigating and focused on the exhaust like harry54 mentioned and sure enough there was some leaks where the intake manifold mates with the exhaust manifold below the carb. And as I gave it more gas and sprayed some liquid wrench around the leak the motor speed up and stopped backfiring. My next question is where I would find all new gaskets for the intake /exhaust manifold where it mounts to the block and all the gaskets for the exhaust. Thanks harry54 for pointing this out, thank you everybody who replied.



Brent

[Deleted User]

Brent, All of the suggestions above are valid. But I would check the timing first. If you have a timing light, check to see if it is moving around. The fact that it spits back through the carb, makes me think it is too far advanced. If nothing else, back the timing off a hair and see if it helps. If not, and it still spits back through the carb, do a compression check to see if you have a valve problem.

Bob

[Deleted User]

Brent.



We have the new manufactured gaskets in stock.

Randy Maas

309-267-6158 cell

309-968-6157

maasfh@ntslink.net

Unknown

AWESOME I just posted another thread about where to get them............Opps I will give you a call in a couple of minuites after I take the wife to Wallmart...............urgh I hate Wallmart/shopping



Thanks Brent

464Saloon

Oh man I forgot about that and I was at Walmart buying automotive supplies