rebuilt engine question

[davek]

sb 318,when I bought the car was told engine was rebuilt. Owner had No info
so my question is will an rebuilt engine idle if it was never broke in?

 

[Don Frelier]

If you don't know then do the regular break-in procedure.

To answer your question yes if everything is correct it should idle.

 

[DeltaV]

How about disassemble everything, check it over, and then reassemble?

 

[davek]

Thanks Don, I changed the intake gasket twice. Engine just wont idle under 900rpm. 2 different carbs and it acts the same. New wires plugs cap rotor and pro tronics. Was able to set timing so I know its close enough to idle. Did the second intake gasket today so I will be firing it up tomorrow.

 

[davek]

How about disassemble everything, check it over, and then reassemble?

Might come down to that. Has a couple bad freeze plugs and he doesnt remember if the oil slinger was installed. Wanted to see if the tranny works. thats why I have not pulled the engine.

 

[Don Frelier]

Double check the firing order.
I usually listen to the exhaust.
Next try pulling a plug wire at a time. (We had a couple bad plugs right out of the box on Stormtroopers Charger)
Compression test.

I wouldn't just yank it out until I know where the problem is.
Could be something simple.

 

[davek]

I did do a compression test and was in 10 an all 8.. It does not miss at high RPMs . Should I still check the wires?

 

[Don Frelier]

Does it shake at all?
Another thing you can check is start it cold run it about 30 seconds and check the heat on the exhuast ports.

Yes it doesn't hurt anything (but you if you get shocked) to pull them one at a time at idle.
Rubber gloves if you have some and keep the other hand off the car.

 

[WileERobby]

What does your vacuum gauge read ?

 

[davek]

Does it shake at all?
Another thing you can check is start it cold run it about 30 seconds and check the heat on the exhuast ports.

Yes it doesn't hurt anything (but you if you get shocked) to pull them one at a time at idle.
Rubber gloves if you have some and keep the other hand off the car.

no shake and thats why Im at a loss. I have a third carb to eliminate carb problem. Guess I will find out tomorrow and thanks for the advice.

 

[davek]

What does your vacuum gauge read ?

All vacs blocked off so I have not checked the vacuum , I believe it was a leak on intake.

 

[sam dupont]

All vacs blocked off so I have not checked the vacuum , I believe it was a leak on intake.

 

[oldkimmer]

Pull the carb and look in the intake real good with a light. May be cracked or have a plug out if it’s an egr model. Do u gave 5&7 or 8&4 wires crossed?Kim

 

[Fran Blacker]

Carb cleaner sprayed intake /carb looking for vacuum leaks.

 

[davek]

Wires are good,did notice a gouge on one side of the flat piece on bottom. pic for reference

 

[davek]

Carb cleaner sprayed intake /carb looking for vacuum leaks.

yep did that

 

[oldkimmer]

I had one many years ago that the distributor was at fault. Kim

 

[davek]

Well I guess it was a intake leak , drove her 15 feet and then backed her up. No brakes but

 

[Don Frelier]

Wires are good,did notice a gouge on one side of the flat piece on bottom. pic for reference View attachment 1505692

That intake looks pretty cruddy for a "rebuilt" engine.
I have doubts about any rebuild claims.

 

[Sam69sat]