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alexatnd

Member Since: 19 May 2015
Location: Yorkshire
Posts: 278

TD5 rocker arm bolts - is it normal for them to shear?

Hi all,
A while back I asked a local garage to change the injector seals on my TD5 .... and all 6 of the bolts holding the rocker arm on sheared .... ended up putting another head on while i had the original one sorted ( skimmed, pressure tested, exhaust stiuds removed and some valve work). Went to remove the injectors from the other head as the ECU was mapped for them..... and 2 of those bolts shared ....! now doesnt matter coz I've got the original head to fit but ... is this a normal thing to happen ? Seems strange having 8 out of 12 bolts shearing.

Anything I can do when fitting the fettled head back on to avoide this happening again? Was it just a case of initially torquing up the bolt too much?

A Santa - 1977 Series 3 - new chassis, tub, disc brakes,SU Carb
Gertie - 1999 110 TD5 - like a Phoenix from the ashes back on road... almost
Effie - 2004 110 TD5 County

11th Jun 2024 6:11pm

tom1979

Member Since: 22 Nov 2021
Location: Bedfordshire
Posts: 18

They are often just over tightened -------------
Defender 90 Td5
Discovery 2 Td5 Manual
Discovery 2 Td5 Auto
Range Rover Classic 300Tdi Bobtail
Ranger Rover L322 M57
(and more- yes I have a problem!)

11th Jun 2024 8:08pm

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