1986 325 engine rebiuld

[djtbster]

how much would it cost for a shop to rebiuld a 1986 325 2.7 engine, mainly like a respectable bmw garage.

[Eurostyle]

too much...not worth it....better find a good used engine, it will cost less, and in most cases last longer then a rebuilt...

[BimmerKris]

i did mine my self for about $1500, and that pepped it up a bit, but it's not liek rocket fast or anything

[Chris de la Cruz]

just save the money and swap out for an M50 or an S52

[Axxe]

Or an M20B25 for cheapness.

[1234]

Originally Posted by Eurostyle

better find a good used engine, in most cases last longer then a rebuilt...

How?

[Eurostyle]

Originally Posted by 1234

How?

How...this is how:

Most places here would charge $2000-$2500 to do an engine like this (almost the price of an M50 swap if you know the rigth people!)
And as much as i respect mechanics here, i still think that German built engines are WAY better...But then again thats just me...I have seen more then one case of a "bad" rebuilt....

[Axxe]

I'm with fil. It would cost a crapload of money to get it rebuilt right, which isn't worth it on a ETA. Are you sure that the bottom end is toast? Or is it just the head? Because if it's the head then swap in an "i" head and you'll make some cheap HP.

[T.Dot_E30]

Originally Posted by Axxe

Or is it just the head? Because if it's the head then swap in an "i" head and you'll make some cheap HP.

Its not that easy, the pistons are different

[jeffrie]

Never seen a eta blow up before, was it a timming belt issue? If so could probably get away with just a new head. Go Is head and pistons for a nice stroker.

[djtbster]

it hasnt blown up yet, but im newb driver and usually ure paranoid about ure first car crapping out on you wen u least notice it, i just wanted to see an estimate on how much a rebiuld cost to see if it was worth it for an extra measure of reliability. and oh eurostyle u still have that computer with a stock chip for my car 86 325.

[BimmerKris]

Originally Posted by Axxe

Or is it just the head? Because if it's the head then swap in an "i" head and you'll make some cheap HP.

That will decrease compression and horsepower, chances are it is just the head, i used all the main parts from the original bottom because it was like new, all i did was put new rings on and re honed the cylider chambers.

I agree that if your gonna pay someone to rebuild the engine get the 2.5 instead

[everlast]

Woah, nothing wrong with it?! Then do some basic maintenence and don't rod the piss out of her, and she'll last longer than the body. Here's what to do: (everyone else jump in with any other ideas for djtbster

-timing belt, tensioner, water pump (cheap if you DIY)
-fuel filter (very cheap if you DIY)
-cam seal / crank seal if you are leaking oil from the front
-check condition of rad, replace if necessary (you can find one used easy)
-replace rad hoses (stupid thing to fail and can really screw you at the side of the road)
-flush tranny fluid
-inspect brake lines / fuel lines
-replace brake fluid with new fluid, bleed, check rotors / pads while ur there
-change plugs
-inspect wires
-buy haynes manual (cheap), go through each of the steps to check throttle, etc, especially thermotime sensor and cold start valve

Hope this helps!
Jay

[Axxe]

Yeah, if it still runs just do maintenance. Bimmer motors are bullet proof as long as you do maintenence and don't run boost.

[BMW_M52_M20]

DO the engine swap for an m50, I have an 325e, and there is just to much shit to do for that engine to make it better........Its a low compression engine with lots of tourque but smaller bhp numbers....

Jay