Rebuilding my buddy's engine

Polito Racing · 01-10-2009, 08:55 PM

I rebuit one of my friends engine the other day and he went crazy taking pictures of what was being done. It was pretty cool because I was teaching how to do it and letting them do it and learn as we went. The engine was street ported all new seals, springs, gaskets and bearings. Didn't know where else to post this. We named this engine "the hornet" and you can see why in the pictures!!!! Enjoy

I'm the guy with no shirt and tattoo's in case youre wondering

The car the engine is going into

Taking all the stuff off the old engine.

Cleaning the parts

Assembling the rotors

Assembly of the engine

need RX7 · 01-10-2009, 09:06 PM

Looks like a fun time.

Polito Racing · 01-10-2009, 09:11 PM

Getting the engine in the crane and in the car

the engine is in

and the final product

It started right off. no videos were taken because it was late at night. It took us 2 day to do it.

vex · 01-11-2009, 12:47 AM

shock'm Bra.

I'll probably be doing that at some point in the near future (as well as redoing my entire engine bay if money is right).

Teenwolf1393 · 01-11-2009, 01:48 AM

wish i had the skills to do all that. im gonna learn to do engine work on a jeep motor i have. then maybe ill think about doing getting my hands dirty on a rotary

WE3RX7 · 01-11-2009, 10:32 PM

Looks good.

Was it warm enough in NC to be shirtless? It's been friggin 20 degrees here in VA! Good job nonetheless...

Polito Racing · 01-12-2009, 07:46 PM

It was actually pretty warm here until these last days somewhere in the 70's. Plus we were inside of my garage so it wasnt bad at all

and thanks for all your compliments guys.

el canito rotary · 04-12-2009, 07:28 PM

good job piloto

JShiz · 04-12-2009, 08:18 PM

Nice. I need to learn how to do that.

Max777 · 04-12-2009, 11:01 PM

Hey polito, it only took you two days to rebuild and install? Damn, was this like, two days hours wise, or actually two days? I would think that a rebuild would take a solid week or so what with all the cleaning, assembly, reasembly, tolerancing, replacing random broken stuff, waiting for parts, etc...

That's damn fast, good job!

REVIT93RX7 · 04-13-2009, 08:27 AM

That looks interesting. My engine build will start sometime around the beginning of next year. The yellow color is interesting, why not black like the rest of the car?

EJayCe996 · 04-13-2009, 04:15 PM

Quote:

Originally Posted by Max777

Hey polito, it only took you two days to rebuild and install? Damn, was this like, two days hours wise, or actually two days? I would think that a rebuild would take a solid week or so what with all the cleaning, assembly, reasembly, tolerancing, replacing random broken stuff, waiting for parts, etc...

That's damn fast, good job!

When you already have everything ready to go I've seen one get torn down and reassembled in 8 hours then put in and started up the next day.

Max777 · 04-14-2009, 01:44 AM

/\ Yeah, but you dont really know what you need until you remove and tear down the engine, clean stuff, and spec it... then you gotta order parts, buy tools you might not have, etc...

Maybe if you just order a seal and gasket kit, and reuse all the hard parts on the engine just the way they are it could work, but then how good of quality would a rebuild like that be?

vex · 04-14-2009, 02:16 AM

Quote:

Originally Posted by Max777

/\ Yeah, but you dont really know what you need until you remove and tear down the engine, clean stuff, and spec it... then you gotta order parts, buy tools you might not have, etc...

Maybe if you just order a seal and gasket kit, and reuse all the hard parts on the engine just the way they are it could work, but then how good of quality would a rebuild like that be?

Honestly it depends. For the most part if you make a habit out of building and rebuilding engines you're going to have parts, or at the very least the most likely candidates for replacement before hand. Spare rotors, spare irons, spare housings, spare bearings, spare springs, etc. If you know the rough condition of the apex seals and side seals more than likely you can reuse them.

If however you're a low volume builder then breaking the engine down and specing is what will take time to do. When I first built the engine it took me a week to clean and spec the parts, even then when I was getting ready to re-assemble I happened to miss the conditions of the bearings in stationary gears so I made it a habit to spec every part at least 3 times. once just after cleaning, second when I'm laying out parts for rebuild such as the rotor, 3rd just prior to installation. Granted that's redundant as hell, but it forces me to pay attention to what I'm installing... never mind that when I took my engine apart the next day to ensure I didn't miss a coolant seal I was able to put it all back together in an hour or less because all the parts were spec'd from the previous build.

Max777 · 04-14-2009, 12:45 PM

That makes sense.

01-10-2009, 08:55 PM	#1
Polito Racing so you got pistons oh wow Join Date: Mar 2008 Location: Raeford NC Posts: 87 Rep Power: 18	Rebuilding my buddy's engine I rebuit one of my friends engine the other day and he went crazy taking pictures of what was being done. It was pretty cool because I was teaching how to do it and letting them do it and learn as we went. The engine was street ported all new seals, springs, gaskets and bearings. Didn't know where else to post this. We named this engine "the hornet" and you can see why in the pictures!!!! Enjoy I'm the guy with no shirt and tattoo's in case youre wondering The car the engine is going into Taking all the stuff off the old engine. Cleaning the parts Assembling the rotors Assembly of the engine __________________ Polito Racing 2000 F-350 SD (Daily Driver) 2002 CBR 954RR (Back on the Road) 1987 RX-7 Turbo II(red bullet!!) Last edited by Polito Racing; 01-10-2009 at 09:22 PM.

01-10-2009, 09:06 PM	#2
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI Posts: 485 Rep Power: 18	Looks like a fun time. __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.

01-10-2009, 09:11 PM	#3
Polito Racing so you got pistons oh wow Join Date: Mar 2008 Location: Raeford NC Posts: 87 Rep Power: 18	Getting the engine in the crane and in the car the engine is in and the final product It started right off. no videos were taken because it was late at night. It took us 2 day to do it. __________________ Polito Racing 2000 F-350 SD (Daily Driver) 2002 CBR 954RR (Back on the Road) 1987 RX-7 Turbo II(red bullet!!) Last edited by Polito Racing; 01-10-2009 at 09:23 PM.

01-11-2009, 12:47 AM	#4
vex RCC Loves Me Not You Join Date: Jul 2008 Location: Influx. Posts: 2,113 Rep Power: 19	shock'm Bra. I'll probably be doing that at some point in the near future (as well as redoing my entire engine bay if money is right). __________________ The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group

01-12-2009, 07:46 PM	#7
Polito Racing so you got pistons oh wow Join Date: Mar 2008 Location: Raeford NC Posts: 87 Rep Power: 18	It was actually pretty warm here until these last days somewhere in the 70's. Plus we were inside of my garage so it wasnt bad at all and thanks for all your compliments guys. __________________ Polito Racing 2000 F-350 SD (Daily Driver) 2002 CBR 954RR (Back on the Road) 1987 RX-7 Turbo II(red bullet!!)

01-11-2009, 01:48 AM	#5
Teenwolf1393 Rotary Fan in Training Join Date: Apr 2008 Posts: 49 Rep Power: 0	wish i had the skills to do all that. im gonna learn to do engine work on a jeep motor i have. then maybe ill think about doing getting my hands dirty on a rotary

01-11-2009, 10:32 PM	#6
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA Posts: 1,812 Rep Power: 19	Looks good. Was it warm enough in NC to be shirtless? It's been friggin 20 degrees here in VA! Good job nonetheless...

04-12-2009, 07:28 PM	#8
el canito rotary Rotary Fanatic Join Date: Nov 2008 Posts: 351 Rep Power: 17	good job piloto

04-12-2009, 08:18 PM	#9
JShiz ZOMG WTF BBQ!!! Join Date: Mar 2008 Location: Mobile, Al Posts: 280 Rep Power: 18	Nice. I need to learn how to do that.

04-12-2009, 11:01 PM	#10
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	Hey polito, it only took you two days to rebuild and install? Damn, was this like, two days hours wise, or actually two days? I would think that a rebuild would take a solid week or so what with all the cleaning, assembly, reasembly, tolerancing, replacing random broken stuff, waiting for parts, etc... That's damn fast, good job! __________________ Rotaries:They are NOT that complicated! Last edited by Max777; 04-12-2009 at 11:05 PM.

04-13-2009, 08:27 AM	#11
REVIT93RX7 REVIT Join Date: Sep 2008 Location: Palm Bay, FL Posts: 90 Rep Power: 17	Rebuilding That looks interesting. My engine build will start sometime around the beginning of next year. The yellow color is interesting, why not black like the rest of the car?

04-14-2009, 01:44 AM	#13
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	/\ Yeah, but you dont really know what you need until you remove and tear down the engine, clean stuff, and spec it... then you gotta order parts, buy tools you might not have, etc... Maybe if you just order a seal and gasket kit, and reuse all the hard parts on the engine just the way they are it could work, but then how good of quality would a rebuild like that be? __________________ Rotaries:They are NOT that complicated!

04-14-2009, 12:45 PM	#15
Max777 Pirate Join Date: Mar 2008 Location: Central IL Posts: 1,323 Rep Power: 19	That makes sense. __________________ Rotaries:They are NOT that complicated!