How long would an engine rebuild procedure last?

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
7thGear
Posts: 157
Joined: Wed May 21, 2003 1:33 pm
Car: 1983 Porsche 944

Post

lets say i have the moola:

i buy all the parts i need before hand, get everything ready etc etc.

how long would it take me to yank the engine + transmission, take it appart, clean everything that needs to be cleaned, put it back together and yank it back in.

less than a week right? i hope so... some people here say how their rebuild projects last months!!! maybe thats because they are waiting for parts or custom made things??

if i have EVERYTHING and i mean everything ready ( wires, pipes, plugs, whatever whenever) before i yank the engine so that there is no wait time for parts, how long would it take me ( or a capable mechanic?)


Meantime
Posts: 1379
Joined: Thu May 08, 2003 3:51 am

Post

It really depends how much time you have to spare to work on the car. If you work full-time, naturally it will take a whole lot longer than if you have days off to devote solely to working on the engine. That's why some people's rebuilds last months (like mine did, long ago).

Figure 3 days to pull the engine, conservatively. At least one day spent pulling apart the head and bottom end. At least one day spent cleaning. At least one day measuring and replacing/prepping parts. At least another day reassembling and torquing the bottom end/head. And then another 3 days to reinsert the engine, reconnect all wiring and restart.

So, by my estimate, you should allow yourself at least 10 days. That's assuming all the parts are already there.

User avatar
krazy skwerel
Posts: 4488
Joined: Fri Mar 14, 2003 7:48 pm
Car: 1989 240SX Coupe down for the count
2005 Honda Accord
1974 Ford Mustang II
Location: Middle Tennessee
Contact:

Post

just buy a rebuilt motor thats eh.

TrueSlide
Posts: 2126
Joined: Fri Aug 02, 2002 7:07 pm
Car: Stuff

Post

3 days to pull the motor?!?!?! Thats alittle overboard, I would say maybe 1(give or take some)to pull the motor. The process I would say I have spent around 20 hours, tearing down, reassembling, etc. etc.

DAEDALUS
Posts: 5421
Joined: Mon Jul 22, 2002 8:50 pm
Car: 1990 Infiniti Q45

Post

In addition to having all the parts, you have to make sure you have all the right tools. I assume you want to do more than just clean everything! So much to measure! Springs, valves, guides, bearings, cams, clearances. And to replace anything...lots of precision machining to get everyhing just right. Valve grinders, seat grinders, polishers, precision reamers, air hammers, etc. If you're going to do the work, make it count.

Meantime
Posts: 1379
Joined: Thu May 08, 2003 3:51 am

Post

Like I said, 3 days is conservative to pull & replace the engine.

Unless you've done it before, and know where each and every connection is, you will probably not get it done in one day. There is always something...a crank pulley nut that won't come loose, an engine mount bolt that is impossible to get to, etc. And these setbacks take time. That's why I factored the "sh*t happens" quotient into my estimate. :)

GoTbOOsT
Posts: 45
Joined: Mon Feb 24, 2003 7:49 pm
Car: Cars, Cars, Cars

Post

Yea I say that if you havent done it and you are not working full-time on it give it like month or month and a half.

To be on the safe side, just like you said, make sure you have all the parts and tools you need. I suggest you get a repair manul too it will make things alot easier. If you dont have the repair manual you could get a cheap one from e-bay thats on a CD for about 30 or less

GL too you

7thGear
Posts: 157
Joined: Wed May 21, 2003 1:33 pm
Car: 1983 Porsche 944

Post

how much would all those tools go for? and would they have any other uses around the house?

Me and my friend has this funny idea when we were drunk once, get a blow torch and run around the neighborhood welding peoples doors shut, hehehehe, and then welding peoples exhausts shut....heheheheh

man that would be hilarious when everyone calls the cops/toe trucks in the morning and your the only person able to get the car going, and your hands are all covered in soot and you smell of burnt.

...:D :D :D :D :D :D :D

anyway yeah, how much would all those custom tools fetch me? Or would it be better to bring the parts + engine to a capable mechanic ( i know of a capable russian mechanic, and i want to make sure that he installs the right parts, comming from a long line of russian mechanic wannabee's and business men, i know that what people order isnt always what they get :D :D )

what i'm saing is that if i have never done this before, and i want it done well ( if not perfect) the first time around, should i just leave it to someone who knows what they are doing and just watch them?

alrighty thx evey1 for your support

GoTbOOsT
Posts: 45
Joined: Mon Feb 24, 2003 7:49 pm
Car: Cars, Cars, Cars

Post

if its your first time doing any major work to the engine like if you have never lifted an engine out of your bay then I suggest you leave it to someone else and watch them.

User avatar
krazy skwerel
Posts: 4488
Joined: Fri Mar 14, 2003 7:48 pm
Car: 1989 240SX Coupe down for the count
2005 Honda Accord
1974 Ford Mustang II
Location: Middle Tennessee
Contact:

Post

You need to be hands on to learn IMO. I say get a friend who knows what they are doing and get them to help.


Return to “240sx General Discussion”