jolly

can you do the oil seals on a cvh head without taking the head off ?? Also as its a zvh with 250 bhp and a stage 3 head should they be uprated or are standard seals ok?

oil has just splurted out of the head near the pully, but i have noticed that the oil cap has a rubber seal in it, should this be able to breathe, and is this why the oil has splurted out due to oil pressure building up in the head and the only way out is through the cam seal???

obrutsr09

Yes you can do valve stem seals with head still on ,you buy specil tool from good motor factors,Mine was £25 pounds ,read instructions ,do 1 at atime take out each plug and put in screw driver get piston to top take of rocker screw on special tool and compress down spring remove collets slide of oil seal

fish99

Are you talking valve stem oil seals... if its a CVH then its an easy fix without having to take the head off. Just get a valve stem tool and its as easy as that.

Oh yeah as said above about the screw driver, make sure piston is up on the one your working on or the valve could drop into block

gaz s1

just dont drop the collets down the sump like i did once

mark_24v_wiring

iTrader: (1)

Been there done that know how you feel

Paul Eggleton

I did that, had to get a taxi to the dealer to get a spare. 50p collect cost me £30. Collet stayed in the sump no probs for about 5k miles more before I rebuilt it.

Lee Reynolds

another been there lol

mark_24v_wiring

iTrader: (1)

Lets face it if you ever had to do a set on a cvh 9 times out of 10 the first time you do them a collet goes in the sump lol

kevbnicpp

tool is about a tenner from burton power

jolly

cheers lads, is that why the oil has come out near the pully tho cos of the stem seals? what about the seal near the pully? head off job or can stay on? and is the oil cap supposed to breathe?