24-02-2021, 06:22 PM
I should say it wouldn't be used just for an A7. There is a Riley 9 and an MGB as well as my Gfs modern car. And whatever else I get in the future having a shed big enough for another car now. Plus whatever people who find out you have a hoist end up asking to put on it!
Using channel across or making some kind of cradle that fits under the 7 and onto the lift is a good idea. I am thinking if you made something that fits across the arms you could also use that to lift out engines maybe? For the A7 I just used a portable painting scaffold with a chain block and that worked fine. With a hoist I think as long as the load is balanced across the posts it is fine.
I have heard the ones with the hump or plate that goes across the floor between posts can be annoying if you want to use gearbox lifting type jacks which need to roll across the floor. I think now most of them come with everything strung across the top. The ones with cables across the top often have a roof bump switch mechanism on them too.
The pad thickness is important. At least 100mm seems to be the recommended on the modern lifts (the smaller 4000kg/10000lbs) ones. One bit of advice I saw from someone installing them was drill right though the slab. That way if the dynabolts ever fail or need replacing you can hammer them down out of the way as you can never get them to pull back up and out. I think they use 20mm or 3/4" diameter bolts.
I am still not sure about old cars not liking their suspension hanging. I think on the Riley the real axle will just end up resting on the chassis rail as it's underslung but that's not going to cause any issues. MG front suspension has no problem either. At the rear there are rubber axle straps to support it.
There are several brands my brother in laws company sells. Summit and Rotary. I think the Summit brand is Australian and Rotary, which seem to be well known and have a good reputation, are US. For something I want to install once and that needs to be well made and safe I want to go with something good quality. I don't think I would trust some of the cheaper brands and definitely don't want to buy one off Aliexpress!
Thanks for the comments. most helpful.
Simon
Using channel across or making some kind of cradle that fits under the 7 and onto the lift is a good idea. I am thinking if you made something that fits across the arms you could also use that to lift out engines maybe? For the A7 I just used a portable painting scaffold with a chain block and that worked fine. With a hoist I think as long as the load is balanced across the posts it is fine.
I have heard the ones with the hump or plate that goes across the floor between posts can be annoying if you want to use gearbox lifting type jacks which need to roll across the floor. I think now most of them come with everything strung across the top. The ones with cables across the top often have a roof bump switch mechanism on them too.
The pad thickness is important. At least 100mm seems to be the recommended on the modern lifts (the smaller 4000kg/10000lbs) ones. One bit of advice I saw from someone installing them was drill right though the slab. That way if the dynabolts ever fail or need replacing you can hammer them down out of the way as you can never get them to pull back up and out. I think they use 20mm or 3/4" diameter bolts.
I am still not sure about old cars not liking their suspension hanging. I think on the Riley the real axle will just end up resting on the chassis rail as it's underslung but that's not going to cause any issues. MG front suspension has no problem either. At the rear there are rubber axle straps to support it.
There are several brands my brother in laws company sells. Summit and Rotary. I think the Summit brand is Australian and Rotary, which seem to be well known and have a good reputation, are US. For something I want to install once and that needs to be well made and safe I want to go with something good quality. I don't think I would trust some of the cheaper brands and definitely don't want to buy one off Aliexpress!
Thanks for the comments. most helpful.
Simon