Kro e30 convertible MT2

[kro]

Timeline

Sellers advertisement


Purchased 2013 late winter


Body was superior condition, good start point



Hard job, painting, bunch of money ”¦
and 2013 late autumn



2014 spring



2014 summer



2014 autumn
suspension upgrade done


2015 may - time for upgrade



2015 august ”“ continues restoration and installing of all extras



...

[Gert_8]

Transformed it!

[kro]

Coupe M Technic 2 body kit bought from UK






But side skirts lowest part is convertible specific. So, ordered new ones.




Bunch of M Technic 2 OEM fitment clamps, screws and other stuff



new OEM yellow headlights ”“ manufactured 2010




new OEM fog lights

[kro]

seats repair

[kro]

get some nice stuff






again OEM parts





must have for convertible owners

[kro]

pripearing for sandblast


sandblasted


electrogalvanization with zync


powdercoated

[kro]

suspension H&R KIT


zimmermann KIT

[kro]

ready for assembly together




old vs new



nice


rear

[jmc330i]

Good work

[kro]

elastic bandages for folding top. when change them top closes so smothlly - no more need take care of folds


z3 steering rack - 2.7 turns total rack travel


super rare Alpina size 8J



new tyres for refreshed alpinas



lets clean - wife not happy

[kro]

mission - clean carpet and change heater unit to max possible version with AC and electronic temperature regulator (in catalog option S535)

[bss325i]

Nice project and some great work there!

[kro]

So what means S535 ELEKTRONISCHE TEMPERATURREGELU
This option you can find mostly late e30 from 90-93 especially Executive edition series.
German WIKI https://de.wikipedia.org/wiki/BMW_E30#Edition_Executive

With electronic temperature regulator can be equipped all types of salon heater units
1. standard heater only + electronic temperature regulator
2. heater with micro filter (heater body is nearly similar to AC body) + electronic temperature regulator
3. top version: AC and heater + electronic temperature regulator

To get top version of electronic temperature regulator I bought complete car! 324td 92 year packed full with all extras.


and disassembling


here are heater with micro filter + electronic temperature regulator

[kro]

AC and heater + electronic temperature regulator


let's refurbish it
change to new heater, evaporator, thermo/heat isolation, isolation on vents, blower motor

check electronic and connections


compare all versions


heat isolation


remember childhood and make templates




cut


and hardest part





evaporator





almost ready


never forget check heater valve... officially it not repairs but technically it quite easy task
so here are examples what are inside after 20-30 year of e30 life




finally one of them cleaned, repaired and checked if works. when you check be aware of valve polarity ;)

[kro]

engine
as mostly all things do by myself at free time except serious paint works and welding than engine build process take long time
finally build stroker m20b28 with schrick 274/288 camshaft and other slight modifications but keeping all setup street legal and at comfort zone
some random pic of process













actually most time takes all stuff around engine - about that next posts later

[appletree]

Love it, great work!

[ck3k]

This is fantastic. Love it and keep it up!

[ImysE30]

Quality work, fantastic

[Cypriotgeeza]

What a difference you have made to that car!

Amazing work!

Subscribed

[kro]

2015 spring ”“ time for engine upgrade from m40 to m20 and change all gathered stuff
Carefully removed front body parts and wrapped in plastic as they already painted previously





Removed all changeable stuff




uh, lot of junk.. petrol tank, gearbox, all exhaust stuff, front sub frame elements etc.




Preparing holding brackets for M20





Sandblast, welding and engine bay painting works]

[kro]

Travel to my friend’s service premises with car-lift and other valuable service equipment. There will happen magic

Few days of changing hoses for brakes and fuel. OEM hoses is straight with proper endings and made from iron. Bending need lot of patience and mistakes not forgiven.













LSD Diff

Changing all bearings, sealing’s, friction plates, make cosmetic, proper measurements of teeth contact etc. Lot of work and quite expensive.









new fuel tank, fuel lines etc.

[kro]

most important thing ”“ engine loaded in my ”acargo vehicle”a



unloading



front subframe assembled together



install top of subframe engine



all what need install



save your back and use power tools gearbox bolted to engine



now car body and engine is ready to marry bring down the body”¦



here most difficult is fit the steering rack shaft and after that screw 4 subframe bolts

little help with lifter to get in place subframe



yes ”“ they are promised never divorce and live happy all life





gearbox z3 1.9 shifter instaled



propeller shaft and diff in place



heat insulaton elements



ready for vacuum, new clutch master cylinder installed as well







other minimal stuff for test start ”“ I am impatient





test start fails ”“ some electrical issues
10 day marathon ends as rent time of service expired
travel back to my garage

[kro]

first start again ”“ forgot something

[youtube][/youtube]

true first start

[youtube][/youtube]

I am happy

[kro]

My car originally was 318 it did not equipped with check control
To get this option is only two ways: change complete car wiring loom or solder in necessary components
Possible donor wirings what I get was worst condition therefor decide solder

donor kit



check control atached









new HLWW loom



HLWW set's



new sockets







headlight corrector set



OEM alarm cover



wiring refurbish



ready for all possible extras





helpful tools



treasure box



old vs new

[kro]

alternator






starter




cleaning of engine parts









cleaned, verified and changed sealings
only form 14 nozzles get 6 usable



coolant conatainer



washer container




valve cover before and after ultrasonic cleaning and powder coating





power streering



change oil radiator







restore vacuum lines

[kro]

AC Retrofit

new hoses





additional electric fan diode located inside fuse box



AC compressor - bad example
rust is everywhere because r12/r134a gas was very aggressive and if system stays long time open/without gas happens this







AC compressor - good example





moral of stroy
buy new one



my cat accepts it is as good enough



hoses instaled

[kro]

List of items if you want retrofit AC

1. AC set form donor - heater housing with wiring, engine bay wiring for AC and additional FAN, old evaporator, hoses, old salon heater matrix, mountings, switch etc.
2. AC mounting stuff - plastic plugs, clamps, screws
3. HNBR O-Ring set
4. AC Compressor - if long time not used and lost hermetic not possible reuse due heavy rust (especially R12 compressors) of compressor inside parts!!! New alternatives Seiko-seiki, Bosch - Behr, Frigair etc.
4.1. If AC compressor can reuse ”“ perhaps need repair sealing kit. Problem that is difficult find correct kit and vendor. If need new bearing for magnetic clutch.
5. New front condenser
6. Electric fan with resistor and mountings. Old style fan is pure efficiency and loud. Better change to new style like e36 or aftermarket like Frigiair etc.
7. Engine bay wiring set for el. fan, dryer and compressor - if don't get from donor is still possible order new OEM from dealer. Often eBay sellers forget or do not know about engine bay AC/fan wires. All e30 have connectors in place at fuse box for AC/fan wires.
8. Hoses - only part is reusable. Big problem is inside rust! Mostly need get new OEM or made custom. If you have m5x series engine then only custom made hoses will fit to compressor.
9. Mandatory - new dryer
10. New style dryer safety switch (mostly old one not possible reuse due rusty valve)
11. Evaporator expansion valve compatible with r134a
12. If feels that old one evaporator is not good enough or leaking (color evidence) then change to new.
13. Saloon heater matrix - also the same story like evaporator
14. Saloon heater matrix valve - often leaks, need repair if possible or change to new

Sorry about my English if something is wrong. Grammar is not my strong side.

[kro]

Full set of big tools box





new front valance

[kro]

[youtube][/youtube]

[Gert_8]

Haha at the last one! a˜„

[pacerpete]

WOW ! Just seen this thread now. Kro, you are a hero and a very sick deviant in equal measures ! Top work !

[kro]

Thanks for good words!

Restoring continues each day after work till late night. Wife see me only in bed

Light setup:





Small test.
[youtube][/youtube]









[/youtube]

[kro]

windscreen wiper mechanism cleaning



one of reason why wiper stuck (second is motor gear system)



other side is OK



lubricated, cleaned etc.



Exhaust installing



But bad things happens. Endings not fit as needed. Angle too big. Need few corrections and welding. I am sad that day. It is relay hard make proper exhaust. This is temporary setup and actually I am plan order full Supersprint set or smth equal manifold header + rest exhaust. Can anyone advice where order?