Engine Rebuild help!? - newbie :-(

Started by antrosser, May 16, 2006, 11:09:55 PM

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antrosser

#30
May 17, 2006, 06:27:29 PM
i wonder if there is anyone out there that remake the rotar housings at a cheaper price. its only a bit of forged metal at the end of the day so how expensive can it be!? lol. ill keep my eyes open and see if there are any going cheaply somewhere.

Grizzly

#31
May 17, 2006, 06:32:37 PM
Also thats Atkins on E-bay, there quite good and can be Trusted. I\'ve bought stuff from them before.

I\'m just going off the Viton oil control rings at the moment, i\'ve recently rebuilt an Engine thats had them fitted and the car has always burnt quite alot of oil, when i pulled it apart theres Burnt oil stains round the outer oil control ring (like its not sealing properly) and all the steel rings fell out.

antrosser

#32
May 17, 2006, 06:58:03 PM
hmmm, so i take it spending £650 for the master kit with those Viton oil rings is not going to be worth the money?

how hard did you find taking out your engine, rebuilding it and then putting it all back together? im scared of disconnecting the gearbox and oil coolant pipes the most. dont know why. ive never done anything like this before with any engines, so its all new territory. hopefully this engine is easier to work on than the others though :-/

Grizzly

#33
May 17, 2006, 07:08:12 PM
Quote from: antrosserhmmm, so i take it spending £650 for the master kit with those Viton oil rings is not going to be worth the money?

how hard did you find taking out your engine, rebuilding it and then putting it all back together? im scared of disconnecting the gearbox and oil coolant pipes the most. dont know why. ive never done anything like this before with any engines, so its all new territory. hopefully this engine is easier to work on than the others though :-/
Thats the Easy bit, When you take the rats nest of the engine Take LOTS!!! of pics and find the Vac pipe diagram.

Grizzly

#34
May 17, 2006, 07:09:27 PM
Quote from: antrosserhmmm, so i take it spending £650 for the master kit with those Viton oil rings is not going to be worth the money?

how hard did you find taking out your engine, rebuilding it and then putting it all back together? im scared of disconnecting the gearbox and oil coolant pipes the most. dont know why. ive never done anything like this before with any engines, so its all new territory. hopefully this engine is easier to work on than the others though :-/
Just ask for them to be taken out and buy Mazda ones. There only about £20 for a set.

Martiny

#36
May 17, 2006, 07:14:25 PM
Quote from: antrosseri wonder if there is anyone out there that remake the rotar housings at a cheaper price. its only a bit of forged metal at the end of the day so how expensive can it be!? lol. ill keep my eyes open and see if there are any going cheaply somewhere.

Wow, I doubt it bud. The side housings need to be absolutley flat. Plus Mazda put a hard wearing coating on it.

More likely needing replacement are the Aluminium Rotor housing ( the bit that the Apex seal runs in). These are coated with a sort of a chrome layer where the Apex seal runs.

I dont think its as simple as it seems at first.

Also, I dont think the parts are that expensive when you consider how much technology goes into them, or when you compare prices of other parts on the FD. Try pricing the drivers door little compartment with flap ! THATS expensive !

Grizzly

#37
May 17, 2006, 07:18:50 PM
Quote from: antrossersounds easy enough. there are two kits on that atkins website:

http://cgi.ebay.com/ebaymotors/Master-Rebuild-Kit-Rotary-Engine-N-A-13B-Rx7-Rx-7_W0QQcmdZViewItemQQcategoryZ34202QQitemZ4638631331QQtcZphoto

http://cgi.ebay.com/ebaymotors/Master-Rebuild-Kit-for-93-95-Rotary-Engine-Rx7-REW_W0QQcmdZViewItemQQcategoryZ34202QQitemZ4638889451QQtcZphoto

i dont know the difference except one is dearer for less parts!?! im probably just being thick though! lol
There is few, If its for an FD i belive its the Bottom one as the Top ones for a NA.

antrosser

#38
May 17, 2006, 07:19:20 PM
lol, i need one of those flap things too as mine is all scratched! looks like i might have got myself in a lot deeper than i had originally thought! its gonna cost some money in the long run, but will hopefully be worth it!

antrosser

#39
May 17, 2006, 07:20:52 PM
ah right, well that will be useful to know instead of me going out and buying the wrong one! lol. thats the kind of thing i would do! take apart the engine then realise nothing fits! hehe

Grizzly

#40
May 17, 2006, 07:21:04 PM Last Edit: May 17, 2006, 07:28:30 PM by Grizzly
Quote from: antrosseri wonder if there is anyone out there that remake the rotar housings at a cheaper price. its only a bit of forged metal at the end of the day so how expensive can it be!? lol. ill keep my eyes open and see if there are any going cheaply somewhere.
:rollin:rollin:rollin:rollin:rollin:rollin

Your best off talking very Nicly to :god Tim at Rxmotors and see if he has any Good second hand ones for sale.

Grizzly

#41
May 17, 2006, 07:22:33 PM
Quote from: antrosserlol, i need one of those flap things too as mine is all scratched!
LOL, That the Technical term :)

Grizzly

#42
May 17, 2006, 07:26:51 PM
Quote from: antrosserah right, well that will be useful to know instead of me going out and buying the wrong one! lol. thats the kind of thing i would do! take apart the engine then realise nothing fits! hehe
LOL Just find out what model your car is i.e. -86 = FB,   86-92 = FC,   93- FD

If its a 93- you don\'t have to worrie about the NA (Normaly Asprated or Not Turbo) bit

Then ask before you send your money if it for a Fb,Fc or FD??? Job done.

antrosser

#43
May 17, 2006, 10:05:51 PM
sorted, from that description above, im pretty sure mine is an FD then as its a 94 model 13B twin turbo engine. so hopefully this seal kit should do the trick! it all looks really complicated, but fun at the same time!

PS i thought that was the technical term for it!? hehe. its a flappy thingy...that costs loads! i might try and source a new interior for mine as it is a bit worn.

Mine has the bins in the back, could i still get the seats to fit in there easily?

stuart wizy

#44
May 17, 2006, 10:10:39 PM
you can rebuild a 13b yourself with all new apex seals corner and side seals, water rings and oil rings for peanuts man, dont be fooled by the mystical fear of the rotary!!!!!
worse case scenario on an engine thats lost compresion on 1 rotor is a new housing or second hand one and maybe a rotor, second hand 200quid for both.

look for parts on-

atkins -for apex seals, side and corner seals

rotary resources -for all oil seals water seals (o ring kit)  

ive bought 3mm seals side seals solid corner seals and all new springs, oil control rings, 1 rotor housing and the motor stands me at less than 500 quid and its ready to build.

its idiot proof if you get a rebuild video and take your time mate
inspection of parts and tolerances is the most important part.
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