Torque Wrench
#11
Originally Posted by LTB,Oct 19 2010, 06:55 PM
Do a bit of research on here and you will find quite a few instances of knackered engines due to plugs being either too tight or not tight enough.
Honda even upped its torque setting for the plugs from 13 lb/foot to 18 lb/foot due to engines getting knackered.
If I were doing my own plugs, I'd use a torque wrench.
Honda even upped its torque setting for the plugs from 13 lb/foot to 18 lb/foot due to engines getting knackered.
If I were doing my own plugs, I'd use a torque wrench.
Especially on my old car
Those settings are very low (1/5 of wheel nuts & 1/10 of hub nots) so make sure you get a half decent one that goes down that far.
Don't do it by hand, I know at least one owner on here that did and killed the engine in doing so
Or borrow
#12
I did mine recently, then checked after a few weeks and they weren't fully tight. My torque wrench is more the sort for doing up suspension bolts; I wouldn't want to use it anywhere on the engine.
What's 18lb/ft in English? A quick look at Screwfix and they have a low range (5-25Nm) for £30 I might buy.
What's 18lb/ft in English? A quick look at Screwfix and they have a low range (5-25Nm) for £30 I might buy.
#13
Originally Posted by gbduo,Oct 19 2010, 06:29 PM
whatever happened to nipping the plugs up then going till they feel tight enough?
I can understand torque wrench for major bolts, but spark plugs, seriously!?
I can understand torque wrench for major bolts, but spark plugs, seriously!?
However there are some jobs you really need a torque wrench for, I have one which i use from time to time but not often.
#14
Originally Posted by mikey k,Oct 19 2010, 06:55 PM
Especially on my old car
Those settings are very low (1/5 of wheel nuts & 1/10 of hub nots) so make sure you get a half decent one that goes down that far.
Don't do it by hand, I know at least one owner on here that did and killed the engine in doing so
Or borrow
You're welcome to come get your hands dirty if you fancy a drive
I'm taking the intake bits apart and cleaning out the throttle body as well as whacking my map and if I feel confident maybe the IAC too...oh and checking my plugs are right too
#15
If it's off the scale, you have the wrong range of torque wrench! Park do one for bikes that goes from 0-7Nm, and I have a Draper one the goes from 30-240Nm. I need one for in between really....
#16
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Originally Posted by Irvatron,Oct 19 2010, 12:31 PM
I can understand where you are coming from here, 5 years servicing my own car plus my last car and I've never had anything come loose esp spark plugs/oil filters etc. One must be careful though with aluminium heads etc etc.
However there are some jobs you really need a torque wrench for, I have one which i use from time to time but not often.
However there are some jobs you really need a torque wrench for, I have one which i use from time to time but not often.
Certainly in my professional environment, torque wrenches are used everywhere, but not before you do it up by hand tight first!
I see what you mean about the alu heads, I think the problem with over-torque the plugs would be the differing thermal co-efficients of the hardened steel plug Vs the Alu head, which could very easily put a lot of strain on the threads.
However 18lb/ft (around 25Nm I think) is very low, with the engineers knack, that is 'feelable' using a decent, smallish T-Bar.
I don't know how much sense that would make to people though!
#18
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Originally Posted by gbduo,Oct 19 2010, 10:09 PM
However 18lb/ft (around 25Nm I think) is very low, with the engineers knack, that is 'feelable' using a decent, smallish T-Bar.
It's no wonder that at the previous 12lbs/ft, they vibrated loose.
I do them a lot tighter than 18.
#19
Originally Posted by Mad Mart,Oct 19 2010, 01:06 PM
Make sure it comes with a calibration certificate.
It does have a clear sticker on it saying Q.C then a long number (quality control?)
Have asked question of the supplier and won't use until I know what the craic is.
Saw a review elsewhere that said it didn't come with one and he spoke to Draper who said..
"This product has a very, very basic calibration, it will need to be taken to a firm (such as A W Newmans, Tel:-0845 388 6518) to be calibrated". To which someone replied;
"Once it is calibrated though it will soon lose the calibration after plenty of use, or if the wrench is not set back to zero. The Autoexpress website did a review of torque wrenches, and while they did not review this specific model, they did review the 1/2" Draper one stating it had near-perfect accuracy. I imagine as new this tool should do a pretty accurate job of getting the torque to within a range of 10nm. Once it is used quite a bit a new one that's already calibrated is probably cheaper than recalibration"
Does that mean because it's cheap you'll need to pay extra to get calibrated or because it only deals in low torque it doesn't need to be?