- Posts
- 58,170
- Location
- Preston Lancs.
Crank bolt has been loose. Quite often the result of some dickhead loctiting bolt but not torquing it properly. 80nm then one and a half flats or 90 degrees.
Last edited:
Crankshaft timing sprocket oddity.....
- Thread starter Saint.V8
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
Crank bolt has been loose. Quite often the result of some dickhead loctiting bolt but not torquing it properly. 80nm then one and a half flats or 90 degrees.
- Posts
- 16,475
The bolt was a lot looser than I expected, especially as the rest of the engine and vehicle have been looked after by the PO.
All the bolts and nuts I removed were copper-slipped, not a round head anywhere (aside from the one on the pump adjuster!), the rocker space is spotless and when I rebuilt the head over the weekend, the head has come up like new in the spirit washer!! (photo attached)
So a loose-ish crank bolt that has signs of Loctite on did surprise me!
EDIT: 80Nm then further 90deg is for the 300TDi I believe....according to the Defender 200TDi supplement manual it is between 333Nm and 350Nm (which is a fecking lot) extract attached.
Attachments
Last edited:
ukadamwest
Well-Known Member
- Posts
- 2,990
- Location
- Surrey
hells bells at that figure i would be concerned with something going pop on the torque up.. mind you i dont have a torque wrench that would go that high !
- Posts
- 58,170
- Location
- Preston Lancs.
Yes i know what the torque setting is for the 200TDI. But how many of Joe public have a torque wrench that will touch that. The 300TDI method maybe a easier way of achieving the same result. 80nm and then a further 90 degrees is also a fecking lot. The two engines have basically the same setup in that area can't see a problem.
Last edited:
- Posts
- 18,982
- Location
- Buckinghamshire, UK. ('95 DT)
Don't know about torque wrenches. I reckon even my 1/2" breaker bar would be bending like a banana at that.
Still, you're in Defender territory, where aftershave is actually insteadofshave and comes from a 5 gallon can, comfort is for men unsure of their sexuality and sophistication is a woman who owns knickers.
If it had been a Gaylander you could have done it up by hand ... with a broken wrist.
- Posts
- 58,170
- Location
- Preston Lancs.
Get yourself a decent bar and it won't. Some of the breaker bars around these days are ****e. Shiny cheap and crap. If you want a good one you have to pay. Sealey are about the best of the cheaper ones.
Last edited:
- Posts
- 18,982
- Location
- Buckinghamshire, UK. ('95 DT)
350Nm sounds a lot for even air-tools. You have to wonder if it was fully tightened in the first place?
- Posts
- 58,170
- Location
- Preston Lancs.
I think it is fairly obvious that it wasn't. Some think loctite and a nip is good enough, it isn't.
wil2813
Well-Known Member
- Posts
- 2,324
ukadamwest
Well-Known Member
- Posts
- 2,990
- Location
- Surrey
- Posts
- 16,475
Well.....80Nm then a further 90deg is a tough one.....
Leaned on the passenger wing, two hands on the 2ft breaker bar (decent one!) and pull like fecking mad....made 90deg with the bar looking like a banana (did go back straight!), but even for me there was a bit of a puff and pant!
Leaned on the passenger wing, two hands on the 2ft breaker bar (decent one!) and pull like fecking mad....made 90deg with the bar looking like a banana (did go back straight!), but even for me there was a bit of a puff and pant!
brianp38dse
Well-Known Member
- Posts
- 19,632
- Location
- heathrow
Ive got no chance then 
- Posts
- 18,982
- Location
- Buckinghamshire, UK. ('95 DT)
- Posts
- 58,170
- Location
- Preston Lancs.
That's why you don't drive a Defender.
Good job he only has a 2.5 DSE then, on that the crank bolt is 100Nm plus 60 degrees, then another 60 degrees, then another 30 degrees. So the Defender one is quite slack by comparison.
- Posts
- 16,475
Feck that.....80Nm then 90deg was tough (doable but tough).....admittedly it was about 22.30 when I did that bit and finished around 01.40 then cleaned up and bed.....so maybe I was a little fatigued....Good job he only has a 2.5 DSE then, on that the crank bolt is 100Nm plus 60 degrees, then another 60 degrees, then another 30 degrees. So the Defender one is quite slack by comparison.
But 100Nm then 60,60,30 would be a killer!
- Posts
- 58,170
- Location
- Preston Lancs.
Feck that.....80Nm then 90deg was tough (doable but tough).....admittedly it was about 22.30 when I did that bit and finished around 01.40 then cleaned up and bed.....so maybe I was a little fatigued....
But 100Nm then 60,60,30 would be a killer!
Has to be done properly on the M51 Ant or there is a chance of losing the oil pump drive as some have found out.
- Posts
- 18,982
- Location
- Buckinghamshire, UK. ('95 DT)
Good job he only has a 2.5 DSE then, on that the crank bolt is 100Nm plus 60 degrees, then another 60 degrees, then another 30 degrees. So the Defender one is quite slack by comparison.
I'll have an extra Wheatabix.
brianp38dse
Well-Known Member
- Posts
- 19,632
- Location
- heathrow
Bugger that I'll just throw the towel in now then unless i can find a source of gammer radiation then get a bit angry and then i might just manage it
- Posts
- 18,982
- Location
- Buckinghamshire, UK. ('95 DT)
Bugger that I'll just throw the towel in now then unless i can find a source of gammer radiation then get a bit angry and then i might just manage it
Saint is just down the road ...
- Posts
- 16,475
Last edited:
