Thread: Chassis adaptor for 2T Omega bottle jack

Originally Posted by LRD414

I have the two stage and it can get the wheel off the ground. But it’s at full extension...

Quite frankly jacking at the points on the chassis with either the scissor jack or the omega jack scares me because of the extension required. I prefer to jack under the arms though maybe not a lot choice if the tyre is flat.

Originally Posted by Ferret

Quite frankly jacking at the points on the chassis with either the scissor jack or the omega jack scares me because of the extension required. I prefer to jack under the arms though maybe not a lot choice if the tyre is flat.

Yeah it’s awful! The length and awful angles everything moves to is unsettling

Originally Posted by Ferret

There are two 2 tonne Omega jacks. A single stage and a two stage. The two stage will lift it off the ground.

Single stage: Max lift - 395 mm
Attachment 133871


Two stage: Max lift - 442 mm
Attachment 133872

DiscoWA found some of the 2 stage jobs on eBay for $40 each delivered to Perth a while back. We bought 4. Of course you can also lift from underneath the arms - won't need the adaptor either.

I'd suggest there are three types lol. I have looked at my manual for mine and it's a two stage 2 tonne and it reports a max lift of 418mm, which explains why I pretty much couldn't lift it at the jacking points without an inch and a half wooden jacking board underneath.

TELESCOPIC HYDRAULIC BOTTLE JACKS

You need to wind out the screw adjuster as well... did you do this?

Originally Posted by Tombie

TELESCOPIC HYDRAULIC BOTTLE JACKS

You need to wind out the screw adjuster as well... did you do this?

A picture speaks a thousand words

Considerable parallax involved in looking at the tape measure on a photo, however my omega jack has ~14 screw threads exposed at max. extension. Yours has only ~8.

I can see the model No. on your jack. It's the same as mine. I think you have probably been short changed on the screw extension or something is stopping it winding out more.

Originally Posted by Ferret

Considerable parallax involved in looking at the tape measure on a photo, however my omega jack has ~14 screw threads exposed at max. extension. Yours has only ~8.

I can see the model No. on your jack. It's the same as mine. I think you have probably been short changed on the screw extension or something is stopping it winding out more.

The parallax effect is only lengthening the measurement. It actually aligns to the manuals 418mm. Manual below. As I said, couldn’t understand the recommendation. I can now knowing that clearly the new model I purchased has been reduced in extension but the model number remained unchanged. Grrrr.

I recently had to change a flat tyre with the scissor jack (my new bottle jack was safely at home in the shed as I had not found a safe place to store it in the car yet...) and had it warp terribly and jam about 15mm short of getting the tyre off the ground.

There are nice dimples in the control arms that a bottle jack leg will sit into nicely. Is there any reason why "we" continue to jack onto the chassis with such long extension jacks? An alternative may be a good quality squat bottle jack that would fit under the arm with a flat tyre, which would need stuff all stroke to then get the tyre off the ground???