[andro1117]

Hey guys I recently bought a 1964 1/2 mustang coupe with a 1987 302 (E7TE).
I have been getting blow by coming from the valve covers as well as lots of smoke from the tailpipe especially as the engine warms up. Before purchasing the car I performed a pressure test and I got 170 psi for all cylinders except one which I got 150 psi. When I removed the valve covers I found sludge (grey-white) and lots of moisture inside. Dismantled the engine down to the block, no cracks, other than some gaskets that were not in great condition everything looks good, I'm just wondering what could be causing the smoke and blow by. Thanks

 

[b1lk1]

Was the PCV system installed?

 

[andro1117]

Was the PCV system installed?

Yes, I actually went ahead and replaced the pcv valve also.

 

[P-Zero]

It's an old tired engine. Should do a leakdown test if possible. However, to me it sounds like it needs to be taken out and rebuilt.

Lots of blow-by and smoke out the tail-pipe typically indicates worn cylinder walls/rings.

However, if you want to restore some power and lose some of the blow-by, pull the heads and hone the cylinders. While this isn't even remotely the right way to go about things, it definitely couldn't hurt.

Did this on my buddies Sonoma 4 banger while he was re-doing his head gasket and it definitely improved its power and stopped the smoking.

 

[snstangguy94]

What did that engine come out of? It doesn't look like a roller block(from what I can see). It either came out of a truck or its older than 87. If it did come out of a truck was it cylinder #8 that was low on compression?

 

[P-Zero]

Definitely not an H.O. mustang block. All of the HO blocks I've seen have either XXX or YYY cast into them above the lifters in the center.

It has the holes drilled and tapped for a roller cam, however the lifter retainer isn't there.


Those heads look pretty nice; what are they?

Kind of hard to tell from the pics how shiny they cylinder walls are, looks to be a pretty good ridge there though.

 

[Sharad]

Even stock, those motors made a decent amount of blowby. Depending on the rings and valve seals, it could be worse now. You could add a UPR catch can to trap the oil before it gets into the intake manifold.

 

[andro1117]

What did that engine come out of? It doesn't look like a roller block(from what I can see). It either came out of a truck or its older than 87. If it did come out of a truck was it cylinder #8 that was low on compression?

The stamped code is E7TE so 1987 truck apparently. The low compression was on #5.

 

[andro1117]

Definitely not an H.O. mustang block. All of the HO blocks I've seen have either XXX or YYY cast into them above the lifters in the center.

It has the holes drilled and tapped for a roller cam, however the lifter retainer isn't there.


Those heads look pretty nice; what are they?

Kind of hard to tell from the pics how shiny they cylinder walls are, looks to be a pretty good ridge there though.

I think the heads are not stock, I attached a picture of the only numbers I found on them. As far as the cylinder walls they are very shiny and in good condition, in fact all cylinders except maybe the last one look very good.
I also attached some pics of the engine before I tore it apart.

 

[andro1117]

Definitely not an H.O. mustang block. All of the HO blocks I've seen have either XXX or YYY cast into them above the lifters in the center.

It has the holes drilled and tapped for a roller cam, however the lifter retainer isn't there.


Those heads look pretty nice; what are they?

Kind of hard to tell from the pics how shiny they cylinder walls are, looks to be a pretty good ridge there though.

I think the heads are not stock, I attached a picture of the only numbers I found on them. As far as the cylinder walls they are very shiny and in good condition, in fact all cylinders except maybe the last one look very good.
I also attached some pics of the engine before I tore it apart.

 

[P-Zero]

I think the heads are not stock, I attached a picture of the only numbers I found on them. As far as the cylinder walls they are very shiny and in good condition, in fact all cylinders except maybe the last one look very good.
I also attached some pics of the engine before I tore it apart.

Those are definitely no stock head. What they are I couldn't tell you. I think they're maybe an old TFS head, but I can't be certain.

As far as the cylinder walls are concerned, if they're shiny and smooth, and you can't make out any crosshatch pattern, they should be honed.

One more thing, is that a Champion spark plug I see in that head? Never, EVER run Champion plugs in anything but a Chrysler. They're AWFUL spark plugs. Use Autolite, or NGK.

 

[andro1117]

Those are definitely no stock head. What they are I couldn't tell you. I think they're maybe an old TFS head, but I can't be certain.

As far as the cylinder walls are concerned, if they're shiny and smooth, and you can't make out any crosshatch pattern, they should be honed.

One more thing, is that a Champion spark plug I see in that head? Never, EVER run Champion plugs in anything but a Chrysler. They're AWFUL spark plugs. Use Autolite, or NGK.

Yeah the guy I bought it from had changed the spark plugs, put in champions. I'll get some autolites AR25.