M130 Head Gasket and Binding Cam
Thread Starter
Newbie
Joined: Mar 2016
Posts: 3
Likes: 0
1970 280 SEL W109 M130
M130 Head Gasket and Binding Cam
Reassembling an M130 top end following a failed head gasket.
Machine shop straightened the head and planed both surfaces.
I'm aware that due to the altered geometry of the top surface, the cam towers may not align as well as originally, and that a binding cam should be shimmed appropriately.
I have the head on and torqued at this stage, and the cam turns but is snug. Will turn by hand with the timing sprocket, but its too taught to turn by hand by grabbing a cam lobe or the cam sprocket bolt without the gear.
Wondering if anyone has insight on what level of binding is fatal to cam. How concerned should I be?
CC
Machine shop straightened the head and planed both surfaces.
I'm aware that due to the altered geometry of the top surface, the cam towers may not align as well as originally, and that a binding cam should be shimmed appropriately.
I have the head on and torqued at this stage, and the cam turns but is snug. Will turn by hand with the timing sprocket, but its too taught to turn by hand by grabbing a cam lobe or the cam sprocket bolt without the gear.
Wondering if anyone has insight on what level of binding is fatal to cam. How concerned should I be?
CC
