7 replies to this topic

[stevemkeen]

Hi All,

 

Just in the process of rebuilding my 1275 engine and have just installed new cam bearings to replace the old which had become scored, new

bearings have been installed and the new Swiftune SW5 cam turns freely by hand., the mark you see on the cam in the picture is just on the surface and not score mark.

 

Can anyone confirm that I have installed the bearing nearest the water pump correctly , in relation to the single round hole and the elongated hole of the bearing it self.

I believe the orientation is important , don't know why, perhaps someone can enlighten me,

 

steve 

Attached Files

•  Cam picture.jpg   38.53K   12 downloads

[Mike L]

I found this picture in a Google search. Hole orientation is critical for proper oil feed to the bearing. There is a groove in the front journal of the camshaft that allows oil to flow from one hole to the other to feed oil to other places in the engine. From what I can tell from the pictures you have it in there correctly.

 

 

[stevemkeen]

Thanks for quick reply, saw the same picture myself during a search , surprised there isn't many pictures or video's out there on correct  installation or orientation for this and the other two bearings.

reason I asked the question hear is because it was the only mention or reference I could fine out there, Just needed reassurance.

[mini13]

I have a block I can check tonight, but the reason they need to be in correct is that the cam is slotted so it gives a pulsed oil feed to the head, if you get it wrong you can feed the head constantly which can fill the rocker cover with oil and cause smoking issues from oil getting down the guides.

[stevemkeen]

Thanks for reply and explanation of why the orientation is important, would appreciate if you can confirm by checking your block  i have installed it correctly before I bolt it all up

[mini13]

Just checked and mine is as per the both the ones above so your good to go,

Also there is an orientation notch in the bearing that goes to the outside a and points towards the head, but not sure that's on all brands of bearing.

[Spider]

As the other guys have said, the Front Bearing has been fitted the right way around - slot on the in-feed and hole to the head.

[stevemkeen]

Thanks to everyone for the reassurance, I can now proceed with the build, much appreciated.