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htb2



Member Since: 02 Nov 2018
Location: aberdeenshire
Posts: 507

Scotland 
bolt in oil whilst changing
Drained oil today and a bolt head came out with the oil. It does not look like the oil pump bolt. Engine is a 15p on 200k. Bolt is an m6 thread with a flanged 8mm head, it is sheared off just below the head. head is marked with letters bup and 10.9 tensile strength.
Will take rocker cover off and have a look for anything missing.
Any pointers to where its from would be gratefully received.

Just as well picked up a spare engine 3wks ago.
Post #770353 27th Apr 2019 9:49am
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htb2



Member Since: 02 Nov 2018
Location: aberdeenshire
Posts: 507

Scotland 
Rocker cover off,nothing missing there.
So sump off next, could be one of the bolts from the oilpump rail assembly,anyone know what size they are.
Post #770357 27th Apr 2019 10:32am
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AndyT66



Member Since: 19 Sep 2016
Location: Bedford
Posts: 148

England 2004 Defender 90 2.5 TD XS CSW Zambezi Silver
Post #770362 27th Apr 2019 10:57am
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htb2



Member Since: 02 Nov 2018
Location: aberdeenshire
Posts: 507

Scotland 
Nope looks different to that. When took sump off its one of the bolts that holds the oil pump ladder frame to the bottom of the engine block. Part number 12 on the attached parts list, a whole 60p worth of bolt that has sheared.
https://www.scparts.co.uk/sc_en/british-ca...e-td5.html

Looks like engine change time
Post #770365 27th Apr 2019 11:15am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16812

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Hmm, interesting and a little surprising that all the ladder frame and sump bolts are Taptites, according to the link above. Clearly none of the holes are threaded prior to assembly.

For those who don't know, a Taptite fastener has a trilobe thread forming shape which rolls (rather than cuts) the corresponding female thread.
Post #770372 27th Apr 2019 11:48am
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htb2



Member Since: 02 Nov 2018
Location: aberdeenshire
Posts: 507

Scotland 
Interesting, wrongly torqued at assembly? lasted past 200K miles though, would you trust the rest?
Probably just change engine and repair at leisure as had a few diesel in oil episodes (from cracked heads) and engine a bit blue smokey after long tickovers
Post #770374 27th Apr 2019 12:05pm
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gazman



Member Since: 17 Aug 2015
Location: Liverpool
Posts: 652

United Kingdom 2003 Defender 90 Td5 HT Alpine White
I'd get another lower mileage engine and rebuild and run the existing one till either the rebuild was done, then keep it for spares or run it till it died and fit the second motor.
My Volvo is over 210k now and a bit rattly at times but I thought it was going to die after 180k when I foundqq metal in the oil. But it just keeps going and hasn't done anything strange. 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r
Post #770438 27th Apr 2019 9:13pm
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