Rocker shaft o-rings

[Jay Laifman]

I don't know how many people already know this. Perhaps I'm the last to know. I've had my Alpine since 1978 and have had the rockers off many a time. But, I have to say that when I just did my new roller rockers, it was the first time I learned that there might supposed to be o-rings between the brass T junction and the two rocker shafts. I have them in there now - but I have no idea how much oil has leaked out this joint over the years, keeping it from the rockers. As I said in another post, my oil would not strongly squirt out of the stock holes when I ran the engine with the valve cover off. But I will say that with the o-rings and the new roller rockers, there is plenty of oil all around the place.

 

[jumpinjan]

I used some thin gasket paper to make a seal there.
Jan

 

[Jay Laifman]

I picked up o-rings at my local hardware store. They had two thicknesses that had the right ID. The smaller thickness definitely squished on installation.

I have another one in a cup of oil on my workbench so I can see if it starts disintegrating.

One other observation. The pipe that brings the oil up - in the picture above it is straight. Mine has a loop in it. I have no idea which cars may have had which. Mine is a very late SV engine.

 

[mightyohm]

I've heard about the o-rings too but they were not present on either of the motors I've torn down and they are not shown in the parts book. I'm not sure if there were ever o-rings.

 

[whiskytangofoxtrot]

Does anybody have a lead on roller rockers?
Thanks
Gary

 

[Jay Laifman]

Here you go: http://forum.sunbeamalpine.org/inde...lpine-engines-not-v6.25062/page-4#post-178858

 

[nsbluenose]

Green air conditioning O rings are more durable than the black O ring

 

[RootesRooter]

I'm not sure o rings were ever fitted stock to the rocker t-fitting, and I'm not sure how the fitting would wear out over the years, but installing o rings sure cut down the seepage around the fitting and increased the flow through the rockers. I've had the same pair from the bin at the local hardware store fitted for a couple of decades and many miles with no leakage.