N777CK T

Ive bought new spark plugs and want to install them properly.

Ive been reading the how tos and only found that you need to torque them to 18-20 #ft as per this thread:
https://www.s2ki.com/s2000/topic/765..._fromsearch__1

So I've been looking for the right torque wrench and none of them list what the #ft range is??

I have seen a Draper 34570 3/8" square drive 10-80 Nm / 88.5-708 In-lb Ratchet Torque Wrench for £22.99 is this ok?

From this converter it tells me the range is 7.37ft/lbs to 58.99ft/lbs.
http://www.convertunits.com/from/in.+lb/to/ft.+lb

Is this too large of a range to be accurate? As the how to guide says to use an 8-20ft range torque wrench?

Will the draper be good enough?

sound_wave

I got a laser one from machine mart for this. Cost about £40 and did the job well enough.

N777CK T

What is the Nm range on it?

BenRNBP

I'd look for one with ftlbs and Nm scales on the settings (rather than inlbs, you'll be forever converting to ftlbs). You are aiming about the correct range for a 3/8" drive though 10-50Nm would be fine. I have a 1/2" drive for the heavier stuff like wheel nuts at ~110Nm

Ghost-Reaper

Halfords do 3 torque wrenches that are really good. I've got the 8-60nm and 60-300nm which have been great for years, the gauge is in both ftlbs and nm and easy to read. They are a bit pricey but if you know someone with a trade card aren't so bad. Depends how much you are going to be using them I suppose.

ian_6301

That'll do nicely.

The range you've quoted is 10-80NM or 88.5-708 Inch lbs

1 ftlb = 12 inlb ...Oddly enough... That means that the range of this bad boy is 7.375-59 FtLb, so pretty much exactly per your dit above.

An 8-20 FtLb torque wrench will have very fine graduations for the settings and as such, you can set it to, for example, 10FfLb and it will break at 10 +/- 0.1 FtLb

This one will, at worst, have an error of somewhere in the region of +/- 2 FtLb or so. If it's that important to you, buy an accuratorque, get it calibrated and check your wrench before you spanner on.

Meanwhile, back in the real world, the draper one will do you just fine. consider also that a shorter handle on the torque wrench may be a lot easier to wield in the engine bay.

Using a torque wrench for putting plugs in is a new one on me, I must admit. Plugs come with crush washers fitted and the usual practice, as specified on the sparkplug packet is to pop them in hand tight and then give them another 3/4 of a turn or whatever it says on the packet. If you're being picky about it, you should always discard the plugs once removed, as the crush washers are a one-time-only part.

Of course, as we know, the S2000 is a different beast to most and I would recommend following what it says in the workshop manual and/or on the spark plug packet, NOT what you read on an internet forum.

N777CK T

OK well I've gone ahead and just ordered it anyway, I'll use it in a spark plug tutorial video that I'll post soon

ian_6301

Sounds like a plan to me. I guess that by specifying an 8-20FtLb wrench so that you don't go using a 20-200FtLb job at the lowest setting. As a rule of thumb, gauges are typically most accurate in the centre of their ranges, so I guess the same must apply to torque wrenches.

BenRNBP

I had a look at your oil change vid - you might want to use your new torque wrench on your oil filter - should be more than hand tight 18-20ftlbs I think and you won't get that by hand.

N777CK T

I'm confident that my oil filter will stay on always done oil filters that way, may torque it up when I get it to be sure though! Same setting as the spark plugs ay!