Rebuild a engine at home?

[antrosser]

Can you do the porting and polishing yourself? also, if i wanted to get the rotors bored out from 2mm to 3mm, where could i get that done? thanks

[Grizzly]

Do you have a Big Compressor and an Air gun handy?? I find the one at work most Usefull (its a Bugger to get the Front E-shaft bolt out as its Liquid locked) You can use a Big Bar but i\'m Laisy

Don\'t use RotaryAviation Water seals, Not good, Try to Stick with OE as much as your Budget will let you. But make sure you use OE Water seals :yes

Don\'t Use Viton Oil Control Rings as they are usaly Too Tight and you end up Damaging them trying to fit them or Cracking the Scraper Ring.

There is nothing that hard about a rebuild as long as you go about it right,Every thing must be CLEAN!!! and well Checked, Lable Pipes up,Lots of Pics,Clean all the Threads with a tap and the Engine bolts with a Die (So you get every thing the correct Torque). I like to pressure test the Block before refitting too, 50% of the time the seals leak and you need to tighten a little more to get it spot on. Loads Of vasaline on every thing when putting the engine back together.

O and Keep it all Clean!!

[Grizzly]

Can you do the porting and polishing yourself? also, if i wanted to get the rotors bored out from 2mm to 3mm, where could i get that done? thanks

You would\'nt want to go 3mm unless for some reason your Rotors where realy out of wack and you could\'nt get any better ones. 3mm\'s are only for bringing tired Rotors back to Tolarance.

Porting can be done your self but don\'t attempt without doing LOTS of reading up and getting hold of some templates so you know what shape you need to cut out.

[Grizzly]

Ok heres a list of what i reckon a full rebuild will need, is there anything iv missed out gasket/seal wise?

Main (internal) Gasket Set* 1  
Rotor O-ring Lg 4
Rotor O-ring Sm 4
Rear Main Oil Seal 1  
Front Main Oil Seal 1  
Corner Seal Plug 12  
Corner Seal 12    
Corner Seal Spring 12  
Side Seal 12    
Side Seal Spring 12  
Thrust Bearings  2  
Oil Pump Chain 1    
Rotor Oil Seal Set 4    
Thermal Pellet Plug 1  
Apex Seals 1 set  
Apex Seal Springs 1 set  
Water pump to block gasket 1
Oil Tube gasket 1
Hylomar® 1  
Silicone 1

Also would it be worth while upgraded to 3mm seals and would i need to make any otherchanges if i added them?

cheers:Hammer

Vasaline,Check valves (if you are keeping the twins),Liquid Lock

Do you have a Black and decker Work mate?? they are spot on for assembling engines

[antrosser]

You would\'nt want to go 3mm unless for some reason your Rotors where realy out of wack and you could\'nt get any better ones. 3mm\'s are only for bringing tired Rotors back to Tolarance.

Porting can be done your self but don\'t attempt without doing LOTS of reading up and getting hold of some templates so you know what shape you need to cut out.

The only reason i was thinking about the 3mm it because i drive quite hard, i have bought a big single turbo for it, and am running NOS! lol. would the 2mm stand up to all of this? or would 3mm be better? thanks

[interloper393]

listen to griz he knows his stuff buddy

Yeah got a black n decker work mate, a bit umm worn lol but still usuable..

[Grizzly]

Well the chap that recomended me to use Atkins 2mm Cryo seals has a set in his  Drag car that runs NOS and he has built quite a few 6-700 hp engine with them in, So i\'m good with them.

You find a Powerfull Drag or Track car then find out what seals they run, I will be very suprised if there 3mm.

There are lots of Proven Down sides to 3mm\'s, but the Benifits (takes more knock) is not Proven, there is no tests or data to back it up. All i see is the Fact there heavier (so they don\'t like high rpm and wear the Grooves quicker) they don\'t seal as well (so you get lower compresion).

You would be best of buying stock 2mm 2pc Apex Seals from Mazda, they are  simply the Best. 80% of tuners who have tried all the diffrent steel seals always come back to Mazda OE.

[Grizzly]

The only reason i was thinking about the 3mm it because i drive quite hard,

I hope you got a good bank balance the best thing about the FD is it teaches you respect for the Go Peddle especially when there tuned with big Injectors and Pump fitted :yes

[antrosser]

thats great grizzly. helped alot. going to stick with the 2mm then and just get it ported, and chuck that big turbo on it :-) should go some then! hehe. do you know anywhere cheap for porting and polishing?

[Grizzly]

MMMM Cheap don\'t usaly go with decent Port work.

Any of the Big name tuners will port your Plates for a Price. I\'ve personaly seen a set done by WGT which where very nice. best thing to do is ring around and see how much a decent size Extended Port will run you.

BTW the secret of keeping Apex\'s intact is good Tuning

[probedb]

I\'ve changed my mind and am going with Mazda OEM now

[Grizzly]

I don\'t blame you, You don\'t want to take a risk with the Seals, i was sick when i had to take my Engine out again becouse of Dodgy Water seals and Dodgy Oil Control Seals (was kind of my Fault with the Rings the Viton are VERY tight and i  nicked one)