Question for you S&S owners...

[JoeFin]

Hi Guys

Here is a pic of the Rocker Boxes on the Heads.

Easy to see these are not the TP Eng Rocker Boxes but rather the S&S Rocker Boxes.




Wish I had the presence of mind to take a better pic showing the pocket of oil around the Exhaust Valve Spring.

I ended up grabbing 1/16 Aluminum filler rod, bending a small ball hoop in it, and running it down through the Return Oil Gallery all the way to the Crankshaft Counter Balancers.

When I pulled it back up it brought with it a good sized chunk of what appeared to by "Varnish" like you would expect in a gas tank and carburator. Wish I was smart enought to get a picture of that too.



I also poured a couple ounces of motor oil in the valve spring gallery to make sure it was draining properly.

I only applied 15 psi of air pressure to the Timing Plug hole but I could hear to air exscaping through to oil gallery servicing the Exhaust Valve Spring.

Thoughts

 

[john sachs]

Hi Guys
View attachment 112007
Here is a pic of the Rocker Boxes on the Heads.

Easy to see these are not the TP Eng Rocker Boxes but rather the S&S Rocker Boxes.

View attachment 112008


Wish I had the presence of mind to take a better pic showing the pocket of oil around the Exhaust Valve Spring.

I ended up grabbing 1/16 Aluminum filler rod, bending a small ball hoop in it, and running it down through the Return Oil Gallery all the way to the Crankshaft Counter Balancers.

When I pulled it back up it brought with it a good sized chunk of what appeared to by "Varnish" like you would expect in a gas tank and carburator. Wish I was smart enought to get a picture of that too.

View attachment 112009

I also poured a couple ounces of motor oil in the valve spring gallery to make sure it was draining properly.

I only applied 15 psi of air pressure to the Timing Plug hole but I could hear to air exscaping through to oil gallery servicing the Exhaust Valve Spring.

Thoughts

The heads drain oil to the crankcase from the drain holes along side the exhaust valve spring area. That's normal. If that drain back hole was almost plugged, that could possibly create your leak. A bad exhaust valve guide can pass oil through the exhaust port, blows around while riding, and that sometimes looks like a leaking lower rocker box gasket. Pull the pipe, and check the port.
John

 

[Th3InfamousI]

Those are the old style S&S Billet Rocker Boxes, the TP ones you got may not have the oiling holes lined up correctly if he sent you the later style Twin Cam on accident that they very well thought you had a later model bike. This is the kit you need.

S&S Cycle Billet Rocker Box Cover Gaskets - 90-4049 Harley Motorcycle - Dennis Kirk

Find the S&S Cycle Billet Rocker Box Cover Gaskets - 90-4049 at Dennis Kirk. Shop our complete selection of Harley Motorcycle parts and accessories including the S&S Cycle Billet Rocker Box Cover Gaskets - 90-4049.

www.denniskirk.com

 

[john sachs]

Those are the old style S&S Billet Rocker Boxes, the TP ones you got may not have the oiling holes lined up correctly if he sent you the later style Twin Cam on accident that they very well thought you had a later model bike. This is the kit you need.

S&S Cycle Billet Rocker Box Cover Gaskets - 90-4049 Harley Motorcycle - Dennis Kirk

Find the S&S Cycle Billet Rocker Box Cover Gaskets - 90-4049 at Dennis Kirk. Shop our complete selection of Harley Motorcycle parts and accessories including the S&S Cycle Billet Rocker Box Cover Gaskets - 90-4049.

www.denniskirk.com

The heads are Evolution style heads for 3 7/8", 4.00" & early TP engines . Probably have square intake ports. Looks like an EDELBROCK intake manifold also. Call Tom Pirrone at TP Eng. , in Conn.
John

 

[Mickmorris]

Hi Guys
View attachment 112007
Here is a pic of the Rocker Boxes on the Heads.

Easy to see these are not the TP Eng Rocker Boxes but rather the S&S Rocker Boxes.

View attachment 112008


Wish I had the presence of mind to take a better pic showing the pocket of oil around the Exhaust Valve Spring.

I ended up grabbing 1/16 Aluminum filler rod, bending a small ball hoop in it, and running it down through the Return Oil Gallery all the way to the Crankshaft Counter Balancers.

When I pulled it back up it brought with it a good sized chunk of what appeared to by "Varnish" like you would expect in a gas tank and carburator. Wish I was smart enought to get a picture of that too.

View attachment 112009

I also poured a couple ounces of motor oil in the valve spring gallery to make sure it was draining properly.

I only applied 15 psi of air pressure to the Timing Plug hole but I could hear to air exscaping through to oil gallery servicing the Exhaust Valve Spring.

Thoughts

Yes that helps immensely! Pictures are worth a thousand words.

 

[Th3InfamousI]

The heads are Evolution style heads for 3 7/8", 4.00" & early TP engines . Probably have square intake ports. Looks like an EDELBROCK intake manifold also. Call Tom Pirrone at TP Eng. , in Conn.
John

Agreed, EVO heads. I should have been a little more clear.

Just for some more information for the guy if he wants to learn what he has. Here's the link off that gasket set I posted that Dennis Kirk had up for their instructions. They show the S&S 51-1051 rockers which are EVO style heads. S&S started using a single 1 piece metal gasket in the last few years on the 107 and down motors instead of the old 2-piece paper as shown in the instruction picture.

https://www.denniskirk.com/dk/pdf/instructions/26/dk267909.pdf

 

[john sachs]

You can still get 2 pc. Evo metal rocker box gaskets. Cometic and Cyco.
John