Re: OT question (Mazda 1500)

[Richard Clough]

Zac,   If its an OHC engine with cross flow head then its valve gear is a bit trickier than a Datto, but you will be OK   Assuming above, remove the cam drive sprocket.  The chain tensioned spring will move the tensioned stop upward and the tensioner outward, but this is OK.   Loosen all the head studs and remove the rocker gear and the oil pipe above the cam.  Try to keep the whole assembly together on the tubes the rockers are fitted to, by lifting at each end and pushing towards the center.  The springs between each rocker want to push the assembly apart. If you do pull it apart, note how each bit fits together.   Lift out the cam and pull up the head.   Reassembly is the reverse.  I would flip the end cam bearing shells top to bottom to share the wear more evenly.   Before refitting the cam sprocket assembly, you need to push down the cam chain tensioner spring with a long thin screwdriver to allow the tensioner to rotate to the slack position.  When the sprocket is on the cam, retension the cam chain by simply withdrawing the screw driver   Unlike a datto, you must reset all the valve gear. ( I know you should recheck on a Datto also but you can get away without doing so.) ----- Original Message ----- From: Zac Campbell To: [EMAIL PROTECTED] Sent: Wednesday, 6 September 2000 13:56 PM Subject: OT question (Mazda 1500) List, my friend has a Mazda 1500 that we are going to be removing the head. Basically is overheated and now something in it is stuffed. We will remove the head to find the problem then fix it.   BUT! I have no idea how to remove the head on a Mazda 1500!!   Can it be much harder than a Datsun OHC? Does anyone have any tips on tricky stuff or can they give me a basic walk-through?   Thanks in advance!   zac --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@datascribe.com.au/ --------------------------------------------------------------------- --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@datascribe.com.au/ ---------------------------------------------------------------------