camshaft seals?

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
jkilby18
Posts: 360
Joined: Sun May 11, 2008 6:21 am
Car: 1991 300zxtt

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okay so i think ive narrowed the oil leak to my pass side cam seal not sure if its the intake or exhaust but im pretty sure its coming from there any way i was wondering does any one have a write up of this being done id like to do it my self and am pretty mechanically inclined ... ive pulled my motow twice one to replace the motor its self and second to replace the turbos.. and id hate to have to do it again.. im so hoping this can be done with the motor in the car.... any advise or anything would be greatly appriciated.. thanks in advanced guys!!!!! :D


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Milton'Z Nissan'Z
Posts: 36
Joined: Sun Apr 18, 2010 8:41 am
Car: 1990 300ZX tt
1990 240SX

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It's pretty simple, but you do have to remove the timing belt and the cam sprockets. Be careful when you pry the old ones out, you that you don't scratch the cam surface. I used a short piece of PVC pipe to tap the new ones back in. I would recommend replacing all 4 and the crank seal as well if there's any doubt as they don't cost much. If the timing belt hasn't been done this is obviously the right time to do that and the water pump as well.

jkilby18
Posts: 360
Joined: Sun May 11, 2008 6:21 am
Car: 1991 300zxtt

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yea the timing belt , waterpump. thermostat .idler pullys and tensioner were done before i put the motor in seeing that the motor was a fresh rebuild.. i have all the gaskets that i need i bought a full motor seal kit jus for such occasions.. are there any special tools that i will either need to make or buy? sorry to be a PITA but i jus want to be absolutly sure of everythnig b 4 i tackle it my self

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Milton'Z Nissan'Z
Posts: 36
Joined: Sun Apr 18, 2010 8:41 am
Car: 1990 300ZX tt
1990 240SX

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Not really, other than the assortment of metric tools you'd need to do the belt. I just used a small flat blade screwdriver to carefully deform the seal edge a bit so I could pull it out.

jkilby18
Posts: 360
Joined: Sun May 11, 2008 6:21 am
Car: 1991 300zxtt

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hey man i appriciate it ill probally do it next weekend from what ur saying it doesnt seem to hard to do..i also hurd about a special tool u need to set the seal a specific depth if this needed? or does it only go in so far?

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Milton'Z Nissan'Z
Posts: 36
Joined: Sun Apr 18, 2010 8:41 am
Car: 1990 300ZX tt
1990 240SX

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Just tap it in until it's flush with the outside edge of the casting. You will see this before you take the old ones out.


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