BMW E30 M20B25 Engine Rebuild Restoration - The Machine Shop | Part 8

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In this episode, I finally show you the work that's been carried out at Rectidama. A great engine machine shop close to me. https://rectidama.es. Firstly the head is completely dismantled. It's then ultrasonically cleaned in preparation for a pressure test, which it thankfully passed. The block was then skimmed and it's cylinders polished. All of the parts that needed to be put back in were also ultrasonically cleaned. A small repair on the head was necessary as the coolant, and probably water mix had eroded away some of the coolant channel. The head was then skimmed again and the new rocker arms, valves, springs, eccentrics, seals, bearings and the rest of it was put, in the same way, they came out. The new piston rings were then fitted to the clean pistons, ready to go in after the new bearing shells and crankshaft were also fitted. The pistons and connecting rods were then attached and tightened down to the correct specification. Finally, the valves were adjusted to 0.25 to complete the job.

Visit https://rectidama.es for any and all engine work you need in Spain. They serve all of Spain.

I cannot wait to get this engine going for the first time. However, the engine I will be putting back into the touring will be the coupe's old engine. Overhauled a while ago, but in good condition. This engine will have to wait for the coupe to be pretty much finished before it goes in.

#BMW #engine #restoration

Get a Shop Manual for Your Car: http://shrsl.com/1rdef
(Available for Most Makes and Models)

Tools & equipment used:

Quartz Lacquer - https://goo.gl/8PTVKM
Base Coat Paint - https://goo.gl/mWhufG
Rust Remover - https://goo.gl/13gopW
Fast Mover 1kW Infrared Paint Dryer, Stand, Timer - https://bit.ly/2WYR9jJ
Workbenches - https://arborgardensolutions.co.uk
Moldex Full Face Mask - https://goo.gl/NNYGrv
FGL 5 Spray gun - https://goo.gl/Acg5rd
A.N.I. R150-T Mini Spray gun - https://goo.gl/cHTJS2
Colad Washable Overalls - https://goo.gl/3Css9E
Colad Mixing Cups - https://goo.gl/8DYmE8
Colad TurboMix Sticks - https://goo.gl/cYZfks
Colad Synthetic Paint Strainers - https://goo.gl/H79ZgL
Steel wire bits - http://geni.us/keyaD
Blasting Cabinet - https://bit.ly/2GxvKJ7
Blasting pot - https://bit.ly/32TMnrU
Cordless Ratchet - https://bit.ly/30YNlkG
Parts Washer - https://bit.ly/2K5G9wA
Rotary Tool - http://geni.us/HGed
Concentrate Degreaser - http://geni.us/yUn9
Mannesmann Socket Set - http://geni.us/HCDZ

Time Stamps:

00:00 – Intro information
00:03 – Showing the block and cylinder head at the start
00:10 – Rectidama.es
00:30 – Removing the rocker arms and shafts from the cylinder head
00:58 – Sponsor - AutoDoc
03:19 – Removing the camshaft
03:32 – Removing the valve springs and collects
04:25 – Removing the valves
04:47 – Ultrasonically cleaning the head and camshaft
04:54 – Pressure testing the cylinder head
06:38 – Polishing the piston cylinders
07:19 – Skimming the block
08:09 – Ultrasonically cleaning the crankshaft and pistons
08:17 – Removing the valve guides
08:31 – Repairing the eroded coolant passage
09:08 – Adding the new piston rings
09:50 – The block after a paint job and a bottom skim
09:52 – Adding the new bearing shells
10:08 – Installing the crankshaft
10:20 – Installing the new main bearing caps
11:24 – Installing the pistons
12:10 – installing the connecting rods with new caps and bolts
13:32 – Torquing down the connecting rods
13:55 – Re-tapping the head to block threads
14:16 – Skimming the cylinder head
14:47 – Everything installed into the head and time to adjust the valves
15:00 – Showing everything laid out ready to be assembled (sorry for the bad quality)

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Видео BMW E30 M20B25 Engine Rebuild Restoration - The Machine Shop | Part 8 канала Restore It