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weird metal tap when cold, 5w 30 oil??

362 views 0 replies 1 participant last post by  Markt8 
#1 ·
Hi guys getting a wierd tap from my zafira, like a metal tap only when cold, after a few mins it disappears, seems to come from around the water pump area, just changed the water pump, timing belt and tensioner and no difference.

Now i suspect a lifter but it does sound like it comes from around the water pump area though

However i have just had piston rings,etc done and its had 5w 30 gm oil put in but i was just wondering is this to thin an oil for this engine could it be the cause of my problem?? as it happened about 2weeks after the engine work/oil change

mark
 
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