Tappet noise ? - theMGZR.co.uk :: MG ZR forum
Go Back   theMGZR.co.uk :: MG ZR forum > General > General MG ZR Discussion
Register FAQ Calendar Mark Forums Read Advertise

Reply
 
LinkBack Thread Tools Display Modes
Old 12-03-2017, 22:45   #1 (permalink)
*Newbie* Handle with care
 

Posts: 11
Location: Cheshire
Drives: Mk2 ZR 105
Join Date: Apr 2013
iTrader: 0 (0%)
Thanks: 1
Thanked 0 Times in 0 Posts
Merlinsdad is on a distinguished road
Tappet noise ?

Our ZR 105 has an occasional very loud tappet type noise when starting from cold . Seems to be coming from no.1 cylinder and goes away after 20 -30 seconds .
I have heard this is common with the K-series .Is it curable with oil additives / flushes or is a mechanical replacement usually needed ? Once the engine has warmed up it is smooth and quiet , but that initial knocking is very undesirable !
Merlinsdad is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-03-2017, 23:24   #2 (permalink)
Senior Member
 

Posts: 1,323
Location: Lincolnshire
Join Date: Sep 2004
iTrader: 0 (0%)
Thanks: 1
Thanked 66 Times in 62 Posts
Man in the Car will become famous soon enoughMan in the Car will become famous soon enough
It is fairly common for the hydraulic lifters to become clogged up internally, and sometimes even the very small oil hole becomes blocked - both reduce the operation of the lifter, which in turn causes a rattle at start up until the oil is able to pressurise the lifter again.

If it clears after a few seconds, it probably isn't worth doing anything about it to be honest. Use of an engine flush can improve matters, but is not guaranteed. If you feel like removing the upper half of the cam carrier, the lifters can be removed, dismantled and any build up of crud removed.

The underlying cause of the crud build up is using cheap poor quality engine oils, and insufficiently frequent oil changes. Engines that have a regular oil change with a good quality oil don't seem to suffer this problem as much.
Man in the Car is offline   Reply With Quote
The Following User Says Thank You to Man in the Car For This Useful Post:
Merlinsdad (13-03-2017)
Old 13-03-2017, 14:15   #3 (permalink)
 JOHNDQ
Senior Member
 
JOHNDQ's Avatar
 

Posts: 466
Location: Bedfordshire
Drives: Evo 7 RS Sprint 2.0
Join Date: Mar 2012
iTrader: 0 (0%)
Thanks: 11
Thanked 13 Times in 13 Posts
JOHNDQ is on a distinguished road
Might be a bit of "piston slap" being a 1.4 fairly common to be honest
JOHNDQ is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Gearbox Noise lilcaz Engines, Exhausts,Gearbox,Tuning,Induction,Cooling 5 26-04-2012 10:26
Tappet Question Alex Birmingham Problems and Miscellaneous (Sponsored by Parts Gateway) 16 07-05-2010 00:36
160 engine noise question Stev160 General MG ZR Discussion 22 19-05-2009 02:29
Dodgy knocking noise Crazed1981 Problems and Miscellaneous (Sponsored by Parts Gateway) 7 03-04-2009 15:06
Start up tappet noise? StayDrunk General MG ZR Discussion 23 02-12-2008 22:56


All times are GMT +1. The time now is 23:40.



Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©2004 - 2014 theMGZR.co.uk Ltd 06371623

The theMGZR.co.uk logo is registered with the UK Copyright Service: 285179

 

Garage vBulletin Plugins by Drive Thru Online, Inc.