I agree with HeyYou on that one. I'm still batteling those damn misfires and now it has been #6. I know I have a slight drop in compression on that cylinder which at idle can cause it, I also need to replace my upper and lower intake plenum gasket because on cold starts it starts to stumble during warmup and it wouldn't hurt for me to check the distributer shaft because if it's slightly loose and wobbley that can cause it as well. Hell my truck has 178K on that engine and she still starts every time.

 

Could be a cracked valve seat.

 

This is true. You and Aim4squirrels have been helping me with this issue for over a year now. I do have a question, other that the engine just effing up, what are the signs of needing a new timing chain? Mine has 178K on it and my buddy says I don't need to change it because it's a double chain and it's HD but I don't know. Also heads do you know where I can get a set but not go to the poorhouse doing so?

 

Its a morse type chain. I.E. It stretches. If that is the original in there, its past time for a new one.

If you want to see just how much slop is in there..... Take off the distributor cap, and rotate the engine backwards until the rotor starts to move. Mark that spot on the balancer, and the block. (use the timing scale if there is one...) Now, turn the crank forward until the rotor again starts to move. Look at how far your marks are now apart. That is how much slop you have. Most folks think that 'up to 10 degrees' is 'acceptable'..... More than that, time for a new one.

 

^^ I agree, plus I'm big about preventative maintenance. I'd rather spend $50 or more to head off a potential disaster or the inconvenience of having a down vehicle. I hate "car guys" who'll spend money to pimp out the interior, splash paint, or install some bitchin' wheels rather than maintaining the engine and drive train. I err on the side of "as long as I'm in there" in replacing parts.

I can't remember where I bought my heads, but I know that I got a beefier set of aftermarket heads (cast iron) for under $600 for the pair. If the heads on your truck are original, I'd bit the bullet, do a teardown, and go through everything. Honestly, I rebuilt my engine and beefed it up for under $2,000.

 

Thanks I appreciate it.

 

Thankls VW I'll check into that. My buddy says he can get me a rebuilt long block for $600 through his shop.

 

Yeah HeyYou it's the original chain

 

Fixing it by replacing every part works rather well.

if you can get a rebuilt motor for 600 bucks..... GO FOR IT!