Oh bugger

[Conner]

The saw is a 2013 makita 7300p.
Yep abt .3mm play housing doesn’t look worn to the eye going to get the DTI out at work and check it. To find where it is worn

[Conner]

Housing is worn .42mm towards the oil pump explaining the wear on the pump. Housing bored out to 42mm sleeve made and bearing pressed in nice and central to the oil seal. One of the perks of Saturday night shift and access to a lathe and milling machine.

[bmp01]

Now that's a proper repair, one you can have confidence in 👍

A bit of a surprise to me no one on here offers that type of machining service, just no money to be made I suppose. 

[openspaceman]

Still no explanation of how the wear occurred, was it initially from pulling the saw when it was jammed and subsequently from the outer rotating in the case?

 

A couple of hours in the machine shop would cost nigh on £200 hereabouts

[Conner]

Still no explanation of how the wear occurred, was it initially from pulling the saw when it was jammed and subsequently from the outer rotating in the case?
 
A couple of hours in the machine shop would cost nigh on £200 hereabouts

The problem with the saw was it wasn’t oiling. It was running very well. The crank had moved over putting pressure on the oil pump and worn it out.

[spudulike]

Nice job and should last. All us mere mortals have is JB weld  which may have worked. 

The costs of doing this sort of work is why it isn't the usual way of repairing cases...an hourly workshop rate verses the cost of a new part.

Looks like a nice job....you may get a load of requests now....may be a new business😉

[Conner]

Still no explanation of how the wear occurred, was it initially from pulling the saw when it was jammed and subsequently from the outer rotating in the case?
 
A couple of hours in the machine shop would cost nigh on £200 hereabouts

Just done some fag packet calculations. Take wages at £15/h (very low). Add machine costs, lighting parts etc and making a few quid the cost of the repair would be far more than the cost of the saw.
Also trying to find someone with the skills to do the job. We have a dedicated machine shop with CNC machines. They could not do a repair like this as it is done by eye. We need to skill up on old fashioned manual machines.

[bmp01]

52 minutes ago, Conner said:

Also trying to find someone with the skills to do the job. We have a dedicated machine shop with CNC machines. They could not do a repair like this as it is done by eye. We need to skill up on old fashioned manual machines.

 

Production machine shop verses Prototype machine shop..... it used to be the natural progression, the top machinists ended up in the prototype shop. 

Bridgeport milling machine would have been perfect for this. Mind you, at a pinch I'd give it a go on the lathe - horizontal milling.

[Conner]

Production machine shop verses Prototype machine shop..... it used to be the natural progression, the top machinists ended up in the prototype shop. 

Bridgeport milling machine would have been perfect for this. Mind you, at a pinch I'd give it a go on the lathe - horizontal milling.

 

Job was done on a Bridgeport copy machine. I suppose it could have seen done on a lathe bolt a right angle plate to the carriage and set up the boring tool in a four jaw. As the casing was too large for a rotating face plate.

 

Yep I served my time in a machine building department in the early 90s. The department mentality was from the 60s all imperial machines learned some very valuable skills which were not taught even then, very old school toolmakers very clever men.[emoji2]

 

Should also add this was done Saturday night shift with no gaffers in🤣🤣

[roys]

Well done Conner, good to have a skill set like that, just not the same amount of skilled craftsmen about now.

i was lucky where I worked in industry that we had skilled welders and machinist, great for one off jobs on broken kit.

Retired now, have my own basic welder and lathe but I’m just pub league compared to your skills and of those guys I used to work with.