think the engine is a gonnar

[kris's66lwb]

so driving my truck yeaster day and it was all normal till a light then she started making a really bad rattle noise and ran really poor took her home puled the plugs they look normal pulled the cap and rotor alil dirty cleaned em still no change took off the valve covers and checked all the rockers all is good there too still the nose contenues im thinking i lost a ring and have no compression at idle no vac leaks that i can detect at all it runs great at high rpm any help guys i cant have this truck die on me while im still building my transmission for my car

[notyo_cheez]

In my experience lost compression is a gradual failure and not a sudden one, although I'm not saying it couldn't happen.

Check your fuel pump. If it's the mechanical one driven off of a lobe on the front of the crank I bet this is your problem, sight unseen...

[kris's66lwb]

What would be wrong with it the lobe or the pump ? Or the rod i know it is old i dont have much experance with fuel pumps so this is a new one for me

[old Rusty C10]

could be either or... also check your oil to see if it smells like gas thats also a sign of a bad pump.. luckilly they are like $20 or so

[kris's66lwb]

The big plug going from thr carb to the charcol canister is full of gas

[old Rusty C10]

starting to sound like a fuel pump

[motornut]

check the vac advance/and weights when it sticks it runs rough
drop the fuel line from the pump to the carb,clean it out
had a pile of rusty crud come outa there,figured it pushed up to the filter,and fall back

[kris's66lwb]

The distributor is new for that reason put a new pump on runs better but not great theres no crap i could see in the line so idk i drove it to wokr all was good then the heater core blew and truck over heated so im thinking of burning it down as we speak i have one car that blew a tranny after 450k miles and now im driving the truck still and now its crapped out

[rs72z]

Originally Posted by kris's66lwb

The big plug going from thr carb to the charcol canister is full of gas

Good chance the charcoal canister has come apart and is getting charcoal in the carb. It will cause the float to stick as well as stop the jets completely up were it wont run.

[kris's66lwb]

Its disconected now the truck runs alright but now the heater core is puking and over heating the truck i dint have time and money to replace it now building a tranny but i also need defrost reaaaaaaalllllllyyyyyyyyyy bad its geting to be that time of year agian

[stroker87]

I had a pickup with a plugged heater core took it in to a shop they "back flushed" it and never had a problem again was $750 to replace it and $65 to back wash it a gamble that paid off

[kris's66lwb]

Ya well this one is leaking into the cab the floor borad is just soaked

[stroker87]

you can take the hoses off the heater core from under the hood get a peace of pipe put the two hoses together so you by pass the heater core to drive the truck just wont have any heat but it will get you by till you can fit it properly

[notyo_cheez]

What Stroker said, did this many times to the hooptys I've owned in the past. Even if one is religious about doing coolant flushes heater cores still corrode and leak, dieletric fittings could prolong its service life but even at a cost of $0.005 per vehicle on the assembly line GM wouldn't do it.

The part is probably no more than $40 but to replace it is a chore, the plenum under the dash by the glove compartment has to be pulled to access it. Basic tools and a metric ton of patience will get it done, I had the one in my '67 F250 done (no a/c) in about an hour.

Good luck.

[kris's66lwb]

Thanks guys i think ima take the big hose and rout it to the lilttle nozzel and drive it home like that thankfully i work in a shop latly i havent had to work on my old crap but customer new stuff so i kinda put all my old knowdege in the closet