Intake and Exhaust cams.

[getu12]

Are the intake and exhaust cams on the 3.4 DOHC Engine interchangable. If one was to take off the cam carrier remove the cams and get them mixed up while changeing the seals, would it make a difference. Please don't answer if you don't really know. Thanks

[dohcfiend]

as far as a direct interchange.....no but you could modify the exhaust cams to fit in the intake cam slot if u wanted.

[getu12]

Cams

The reason I asked is because when my son in law had the rear cam carrier off the engine, he took it all apart to replace the camshaft seals. We have timed this engine over and over and still can't get it to run. I thought maybe he got the exhaust and intake cams mixed up when he put it back together. The original problem was that the timing belt desintegrated. We have replaced all the pulleys, idlers and tension actuator. Got good fuel pressure, 40#. Got spark and good compression.

[series8217]

I mixed them up on one bank when I put my motor back together. It would start and die immediately because the intake would fill with exhaust gasses. On a MAF engine (94+) it would probably not run at all.
You could try opening the throttle and cranking the motor over to see if any air is coming OUT of the intake. If it is, you have a mix up.
Send me an email or PM with your email address and I'll send you pictures of what the cams should look like installed properly on both banks.

[getu12]

Intake and Exhaust Cams

Just for your info. The intake and exhaust cams were reversed on the back carrier. Thanks for the info. Now I have another question. What is the difference between the 95 and the 96 X code engines. Is the intake setup the main difference?

[bszopi]

Compression increase to 9.7:1.
Different camshaft profile
Different head design
Different Intake manifold design
Different Exhaust Manifolds
OBD II computer system introduced

http://wiki.60degreev6.com/index.php...V6_Family_Tree

[getu12]

Intake and Exhaust cams

Thanks for the reply. I have a partial gasket set for a 96 and was wondering if the gaskets would work on the 95 engine. I guess with the changes in heads and intake and exhaust that would mean that I need to get a 95 gasket set.