Disco 4 (LR4) Check your bolts...

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Mark Piercy

Mark Piercy

Well fumbled member....
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There we were returning this corker of a disco back to its owner after a oil filters change.. 20 minutes into the journey and pop!!!!
IMG_20210705_183709.jpg

All three bolts sheared off in the block... Never seen that before. Presumably over tightened when the water pump was changed in 2018/19 according to the date on the pump casting. Anyone else suffered this? Luckily at 55mph and around 50mtrs before we pulled over and shut it down. :eek:
 
So far around ten bolts snapped in hidden fixings and plastic casings. It's not a wander most garages won't touch them. Even landrover near us in France said themselves they don't do older vehicles as they know exactly how complicated they are to deal with.
:(
 
Mark Piercy said:
So far around ten bolts snapped in hidden fixings and plastic casings. It's not a wander most garages won't touch them.
Click to expand...

To be fair, snapped bolts are down to poor workmanship, not bad vehicle design.
I've done a few timing belts on the TDV6, and haven't managed to snap one bolt yet.

I think I'd be removing the timing belt covers, just to see if any more bolts are waiting to fail.:eek:
 
Mark Piercy said:
So far around ten bolts snapped in hidden fixings and plastic casings. It's not a wander most garages won't touch them. Even landrover near us in France said themselves they don't do older vehicles as they know exactly how complicated they are to deal with.
:(
Click to expand...

As Nodge says thats down to the last mech not greasing stuff as he put it back together.
 
Can't fault your words, tightened way to much for a three tiny 6mm bolts. 1/4" wratchet and normally your wrist will tell you how tight they should be. Just the level of gear to get into it.
My 38' has maybe 5 or 6 hoses, this things has around 12-13? Complex...
 
Mark Piercy said:
Can't fault your words, tightened way to much for a three tiny 6mm bolts. 1/4" wratchet and normally your wrist will tell you how tight they should be. Just the level of gear to get into it.
My 38' has maybe 5 or 6 hoses, this things has around 12-13? Complex...
Click to expand...

There will be lots more than 12/13 coolant hoses on the D4.

D3 set up, dont have D4 info,

Screen Shot 2021-07-23 at 17.58.01.png
 
I stand corrected, 5.8mm bolts but the pump is drilled for 8mm. Why not fit 8mm. I'm sorry but that is effing stupid sdv6 with fuel heater and a secondary small rad at the front for wtf!! or not with a million cooler pipes... It's cost this poor owner.. Because of some idiots momentary lapse of reason. Economically built indeed.
I'll stick to my 38':rolleyes:
 
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