Moparts

It's always something! *UPDATE* and possible fix

Posted By: Guitar Jones

It's always something! *UPDATE* and possible fix - 09/20/11 09:46 PM

Now I see I have oil running out of the right header on my new engine. Argh! It must have a torn valve seal on an exhaust valve to do that, the pan evac hose is dry. W5's have those deep cups around the valve spring even though they've been drilled to allow oil to drain out it's not going to drain it all.

I guess worst case scenario is a guide has come loose, it runs fine though and sounds really good. I guess I'll go pull the cover and take a look...
Posted By: MR_P_BODY

Re: It's always something! - 09/20/11 10:25 PM

Yeah those spring pockets are deep in the W-5s... I
cut a notch out of mine with the die grinder... I'm
thinking its more like a guide causing that... but
hopefully its just a seal.... but your right... its
always something screwing up
Posted By: Plymouth340

Re: It's always something! - 09/20/11 10:30 PM

i had oil running out of my header on my w-2 motor and it was the head gasket leaking..might be something to look at

Attached picture 6834921-IMG_1666.JPG
Posted By: emarine01

Re: It's always something! - 09/20/11 10:31 PM

Yep...been there before on W5s,,,, Hope its the seal
Posted By: Guitar Jones

Re: It's always something! - 09/20/11 10:49 PM

Quote:

i had oil running out of my header on my w-2 motor and it was the head gasket leaking..might be something to look at



How did the head gasket do that? I think first step is I'll pull the header off and see what tube(s) are wet then I'll know what cylinder(s) to look at. Worst case I have extra gaskets except the head gasket.
Posted By: emarine01

Re: It's always something! - 09/20/11 10:58 PM

Do you run the stock Dia W5 guide? If so the seals dont hold tight and pop off all the time if ya run any kind of valve lift above .650.
Posted By: Oyvind Mopar

Re: It's always something! - 09/20/11 11:06 PM

Same problem on a set of St6 heads, showed up to be leak between valveguide and head. Showed up on one cylinder, but after testing with kerosene, all of them leaked through. I made special spring cups supporting O-rings pressing between head and guide, have not tested yet.... If you look upon the design, there is not much material between valvespringseat and port. Should have been assembled with a sealing compund. My
Posted By: Plymouth340

Re: It's always something! - 09/20/11 11:11 PM

i dont no but that was the problem..gasket was oily and probly ready to blow. two black plugs and was smoking out that side..
Posted By: Guitar Jones

Re: It's always something! - 09/20/11 11:23 PM

Quote:

Do you run the stock Dia W5 guide? If so the seals dont hold tight and pop off all the time if ya run any kind of valve lift above .650.



Yeah it's a stock guide and the net lift is .698/.714
Posted By: Guitar Jones

Re: It's always something! - 09/20/11 11:26 PM

Quote:

Same problem on a set of St6 heads, showed up to be leak between valveguide and head. Showed up on one cylinder, but after testing with kerosene, all of them leaked through. I made special spring cups supporting O-rings pressing between head and guide, have not tested yet.... If you look upon the design, there is not much material between valvespringseat and port. Should have been assembled with a sealing compund. My



I've had these heads for a long time without a problem before now. I just had the VJ touched up on the exhaust and 2.08 valves installed in the intakes.
Posted By: emarine01

Re: It's always something! - 09/20/11 11:32 PM

I don't know why they ran a smaller outside Dia guide on stock W5s... We had a problem with the intake & exhaust slippin off, When we went to 11/32 stems we used standard Dia valve guides, Its been a wile but someone on here had a part # for seals that fit tighter.... I think it was Brett in PA but its been years so not sure
Posted By: Guitar Jones

Re: It's always something! - 09/21/11 12:33 AM

I pulled the header off and I can see oil running down the stem of #4 exhaust valve. I can see the guides and it hasn't moved. It's dry around the little bit of the guide that sticks through but the stem is wet and you can actually see the trail it has left going down the stem. So it looks good that it's just the seal.

If anyone knows a better fitting seal I'd appreciate it. I still have not mastered the search function here.

Thanks to all of you for the help.
Posted By: MR_P_BODY

Re: It's always something! - 09/21/11 01:36 AM

I still have not mastered the search function here.

Thanks to all of you for the help.



No one has mastered it.... it sucks... I cant help with
the seals, I put in .343 stems when I changed to 2.08s
Posted By: Guitar Jones

Re: It's always something! - 09/22/11 02:01 AM

I took the car to work today to fix the leaking rear housing gasket and was telling one of the body guys about my problem. Well he has a mid 10 second small block Camaro (what else is new) and I guess this is pretty common on the Chevys as well. He says he takes some 80 grit sandpaper and scuffs up the outer surface of the guide where the seal goes on and that gives it something to hold on to. Says it works for him so I guess I'll give that a try and see how it goes. I'll let you all know.
Posted By: WILD BILL

Re: It's always something! - 09/22/11 02:13 AM

Posted By: MR_P_BODY

Re: It's always something! - 09/22/11 02:15 AM

Quote:

I took the car to work today to fix the leaking rear housing gasket and was telling one of the body guys about my problem. Well he has a mid 10 second small block Camaro (what else is new) and I guess this is pretty common on the Chevys as well. He says he takes some 80 grit sandpaper and scuffs up the outer surface of the guide where the seal goes on and that gives it something to hold on to. Says it works for him so I guess I'll give that a try and see how it goes. I'll let you all know.



What I've done in the past is use a small pointed
punch on them... give it about a dozen punch marks
(it will displace the metal outwards and leave a
ridge around it) that give the seal bit
Posted By: Guitar Jones

Re: It's always something! - 09/22/11 02:21 AM

Quote:

Quote:

I took the car to work today to fix the leaking rear housing gasket and was telling one of the body guys about my problem. Well he has a mid 10 second small block Camaro (what else is new) and I guess this is pretty common on the Chevys as well. He says he takes some 80 grit sandpaper and scuffs up the outer surface of the guide where the seal goes on and that gives it something to hold on to. Says it works for him so I guess I'll give that a try and see how it goes. I'll let you all know.



What I've done in the past is use a small pointed
punch on them... give it about a dozen punch marks
(it will displace the metal outwards and leave a
ridge around it) that give the seal bit




That's a good idea too I'm just not sure if I can get in there with the heads on the engine in the car. I really don't want to pull the heads back off.
Posted By: MR_P_BODY

Re: It's always something! - 09/22/11 02:29 AM

That's a good idea too I'm just not sure if I can get in there with the heads on the engine in the car. I really don't want to pull the heads back off.



What I used was a piece of 1/8" stainless steel welding
tig rod... sharpen it to a point... you want to aim it
on a downward angle that way it moves more metal
outwards...if you need to sharpen it a couple of times
Posted By: Guitar Jones

Re: It's always something! - 09/22/11 02:32 AM

Quote:

That's a good idea too I'm just not sure if I can get in there with the heads on the engine in the car. I really don't want to pull the heads back off.



What I used was a piece of 1/8" stainless steel welding
tig rod... sharpen it to a point... you want to aim it
on a downward angle that way it moves more metal
outwards...if you need to sharpen it a couple of times




OK cool, I'll give that a try. Thanks!!
Posted By: roadhazard

Re: It's always something! - 09/22/11 02:46 AM

If you have a die you could run that around the guide if you have room
Using a punch could deform the guide I.D.


If you need seals shoot me a PM, I have 1,000's of seals to fit any stem/guide/spring combo
Posted By: MR_P_BODY

Re: It's always something! - 09/22/11 02:48 AM

OK cool, I'll give that a try. Thanks!!



I did it head on the engine... used about a
8" length of tig rod... was easy...good luck
the reason I wouldnt go with the sand paper... its
already too small... sand paper takes material off...
you need to go larger... this is a cheap mans knurling

Posted By: Guitar Jones

Re: It's always something! - 09/22/11 10:52 AM

OK thanks guys. I'll see what I find when I get the spring off. I'm not going to take it apart until I have all the stuff to put my new rockers on as it's running right now so I can move it around. Thankts to Competition Wedge I should have everything next week to get it done.

I'll keep that in mind roadhazard my head porter gave me some extra seals but I'll see when I get it apart. I'm sure I'll be contacting you in the future as I have an M1 TR and W5 heads so gaskets will be needed eventually. I have some spares but not many left.
© 2024 Moparts Forums