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- Aug 24, 2009
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- 2,505
I changed my front cam seal today for an uprated Skunk2 seal after my b16b developed a small oil leak from this seal. It is a very common place to leak from b-series engines and I have made a simple guide on how to change this seal
Tools:
I used 3/8" drive because of the low torque involved
-10mm socket
-12mm socket and 12mm deep socket
-Torque wrench to suit above sockets and it needs to torque as low as 7 ft lbs
-Flat head screw driver
If you notice oil gathering in the area where the arrow is pointing then you can nearly be sure that this is caused by a leaking front cam seal
Ok to start with you need to remove spark plug cover/ leads, rocker cover breather pipe and power steering piping support bracket, Basically everything that attaches to the rocker cover. (just carefully pull the leads to one side as removing them from the distributor will mix them up and cause problems)
Then remove rocker cover bolts in the following order
Lay the rocker cover to the side, next remove all of the bolts on the exhaust (front) cam brace in the following order:
(note, deep socket is used for the 2 bolts with threads for securing the rocker cover 3&5)
You will now have this so carefully remove the exhaust cam brace
When removing all of the parts lay them out in order so that they go back in exactly the same positions
Then with a large flathead gently pry the end cap off where the red arrow is, be carefull not to damage the edge of the head or cap as its aluminium but it sould pop off easily
The oem leaking seal
where the seal sits
remove the old seal and replace with the new one (new seal has 3 o-ring seals instead of 1)
-Now put everything back together in the same order that it was removed.
-Follow the same torque order for the bolts
-all of the 12mm head bolts on the cam brace are torqued to 20 ft lbs
-the 2 10mm head bolts at each end of the cam brace torqued to 7.2 ft lbs
-Lastly apply a small amount of RTV high temp silicone gasket to each of the corners or the 4 cam end covers. See where the red sealer is
Now replace the cam cover with gasket in place and torque all of the bolts in the correct order again to 7.2 ft lbs
After replacing leads etc you are all done
New front cam seal in place
Tools:
I used 3/8" drive because of the low torque involved
-10mm socket
-12mm socket and 12mm deep socket
-Torque wrench to suit above sockets and it needs to torque as low as 7 ft lbs
-Flat head screw driver
If you notice oil gathering in the area where the arrow is pointing then you can nearly be sure that this is caused by a leaking front cam seal
Ok to start with you need to remove spark plug cover/ leads, rocker cover breather pipe and power steering piping support bracket, Basically everything that attaches to the rocker cover. (just carefully pull the leads to one side as removing them from the distributor will mix them up and cause problems)
Then remove rocker cover bolts in the following order
Lay the rocker cover to the side, next remove all of the bolts on the exhaust (front) cam brace in the following order:
(note, deep socket is used for the 2 bolts with threads for securing the rocker cover 3&5)
You will now have this so carefully remove the exhaust cam brace
When removing all of the parts lay them out in order so that they go back in exactly the same positions
Then with a large flathead gently pry the end cap off where the red arrow is, be carefull not to damage the edge of the head or cap as its aluminium but it sould pop off easily
The oem leaking seal
where the seal sits
remove the old seal and replace with the new one (new seal has 3 o-ring seals instead of 1)
-Now put everything back together in the same order that it was removed.
-Follow the same torque order for the bolts
-all of the 12mm head bolts on the cam brace are torqued to 20 ft lbs
-the 2 10mm head bolts at each end of the cam brace torqued to 7.2 ft lbs
-Lastly apply a small amount of RTV high temp silicone gasket to each of the corners or the 4 cam end covers. See where the red sealer is
Now replace the cam cover with gasket in place and torque all of the bolts in the correct order again to 7.2 ft lbs
After replacing leads etc you are all done
New front cam seal in place
Last edited:
rep added!
