I was going to do a leak down until I found this.

[Paranoid]

:cry

Cylinder #1 intake valve. The nut must have backed off, I could move it with my fingers. Could this be part of my smoking problem?

Can I simply replace the pushrod without removing the intake?

 

[gmjunkie]

Yes I beleve you can, I would Replace the Rocker arm and Nut though!! junk!!

 

[Paranoid]

Do you think this could have caused my blowing oil smoke?

 

[Ron Miller]

Do you think this could have caused my blowing oil smoke?

I wouldn't think so, maybe someone else may have a different opinion?

 

[gmjunkie]

Certainly, Piston going Down for Intake and no valve Open,it could Suck Oil up past Ring's!! junk!!

 

[Ron Miller]

Certainly, Piston going Down for Intake and no valve Open,it could Suck Oil up past Ring's!! junk!!

Yep, makes sense to me if the intake wasn't opening at all, or was opening very little.

 

[Paranoid]

Thanks guys. I don't have a matching pushrod but do have another set minus one of a different brand. I bent one doing a valve-piston clearance during the rebuild.

Do you think it matters if I miss-match?

 

[67HEAVEN]

Thanks guys. I don't have a matching pushrod but do have another set minus one of a different brand. I bent one doing a valve-piston clearance during the rebuild.

Do you think it matters if I miss-match?

Len,

Are they the same weight?

As Junkie said, I'd replace the arm (looking at the pushrod, there must be rocker arm damage too) and the nut.

Happy New Year.

 

[Paranoid]

Len,

Are they the same weight?

As Junkie said, I'd replace the arm (looking at the pushrod, there must be rocker arm damage too) and the nut.

Happy New Year.

I'd have to check. I know they were the same composite and wall thickness.

Yeah, I'll have to order the rocker arm/nut.

 

[Paranoid]

Here's the other end of the pushrod.

and the underside of the rockerarm.

 

[gmjunkie]

I'd Still change the Rocker Arm!! What's $7-$8!! junk!!

 

[speedmaster4]

that will make it suck oil up past rings

change rocker arm for sure

similar length/diameter pushrod fine

when you slide the new pushrod in, observe angle of other intakes pushrods..,you can feel when the pushrod 'seats' into the lifter...DO NOT let go of the pushrod until you are certain that its seated in lifter--pushrod may slide in if not seated and then you will need to pull the intaake mfld

 

[Vettsmith]

I would check the lifter also. It may have started the problem.

 

[Paranoid]

Len,

Are they the same weight?


Happy New Year.

The damaged pushrod weighs 2 5/8oz, the one I want to replace it with weighs 2.5oz. Same diameter 0.065 wall.

 

[SPANISHVETTS]

The damaged pushrod weighs 2 5/8oz, the one I want to replace it with weighs 2.5oz. Same diameter 0.065 wall.

That is only a 5% difference so it is probably within factory tolerance. Weigh several other rods and compare the weights.