Sw20 turbo engine knocking

Re:Sw20 turbo engine knocking (mr2slide)

Mon, 04 Mar 2013 03:34:11 GMT

I decided to get a engine n rebuild my old one as a project,
With a bigger head ache the car is still not running thanks to two work shops that not only f****d me nicely but left a nice big hole in my wallet too,
So now,
After everything and car catching on fire it still continued to mis,
haveing to work on it my self I had a vac leak from plenum decided to replace it n get rid of tvis replacing it with a plate (not sure if it was a good idea)
started car drove like **** kept missing and I just can't figure out why,
put it together again and now my alternator ****s it self
Better yet I got EPA for exhaust noise, aswell
So now I'm sick of takeing short cuts
I have to do it once or it's gonna be up for sale,
I removed my piggy back so running standard computer, in my wireing loom I've got a lot of different plugs not connected and I can't find where they go.
My biggest questions are,
Is there any diagrams for complete wireing plugs for the engine bay? What plug goes where so I can get rid of the rest,
Would the standard ecu be affected by Removeing tvis,
A diagram of vaccum hoses?
What are the biggest problems with the gen 2 motor ecu,
And is there any prossibilities of why it's still missing and still haveing a vaccum leak,

I have never come across a car with so many problems and so many dumb mechanics

I just wanna sit in the car and drive it and go to a mr2 meet lollll

If anyone can help me ill buy u u a slab dead set,

Re:Sw20 turbo engine knocking (3sgeTurbo)

Wed, 07 Nov 2012 16:08:20 GMT

MR2QIK, did your HKS cams make a bit of head noise from the flatspots?

Re:Sw20 turbo engine knocking (MR2QIK)

Fri, 19 Oct 2012 10:49:49 GMT

If you had spun a bearing you'll see metal shavings when you drop the oil now. Additionally, may help or not but good to know. HKS cams are somewhat "soft". Mine have a few flatspots (been running them for near 10yrs) which makes my cylinder head kinda "noisy". Valve clearances etc are all perfect too.

Either way, a decent mechanic (probably not the one you just went to) could identify/diagnose the issue. Does sound like a bearing though.

Re:Sw20 turbo engine knocking (3sgeTurbo)

Fri, 19 Oct 2012 10:14:31 GMT

Well depending on your budget and current modifications I would recommend getting forged pistons and H beam conrods.

A set of Wiseco Forgies and Eagle H-beams can be brought for around $850 and a set of ACL race series rod + crank bearings are around $150, and there for less than 1G in parts a fordged bottom end that will hold up boost, also I would highly suggest getting a MLS head gasket.

What mods do you currently have now? are you planning on running higher boost or upgrading your turbo?

Re:Sw20 turbo engine knocking (purple5ive)

Fri, 19 Oct 2012 10:01:35 GMT

might as well go the best you can afford while the engine is out and already opened up.
forged pistons and stuff arent that much more expensive compared to OEM stuff.
gorilla industries have a real good deal on engine rebuild kits have a look in there
cheers

Re:Sw20 turbo engine knocking (mr2slide)

Fri, 19 Oct 2012 05:12:40 GMT

Finally the engine is ripped apart and by looks so far definitely bottom end and engine has been opened up before most Likely by some one that loved blue silicon, but now the decision of standard build or forge and go all out?,

Re:Sw20 turbo engine knocking (3sgeTurbo)

Wed, 03 Oct 2012 10:39:33 GMT

Providing the crank can be ground down you would be better off rebuilding the bottom end, I have seen people throw used engines in with on ~ 80,000kms and last a few months, unless you have x-ray vision there is no guaranteed way of telling how good a second hand motor is.

Atleast if you rebuild it you know the bottom end will never pop again, providing the machinist gets the clearances spot on.

Re:Sw20 turbo engine knocking (mr2slide)

Mon, 24 Sep 2012 14:57:53 GMT

I spoke to Ian, and he said possibilities is bottom end but can't guess and actually have to open the block to see what's been done to it by previous owner weather it's worth fixing or replacement motor, so yesterday was first day started working on it, if i have a decent motor il probably rebuild it depending on the extent of damage,,,

Re:Sw20 turbo engine knocking (track_mr2)

Sun, 23 Sep 2012 08:55:11 GMT

Based on what you've said I reckon you've spun a big end bearing. I had the same thing happen to an MR2 I had years ago. Huge knocking sound while driving. Car still drove till it ripped up the crack bad enough that it just ceased. Best to tow it to a mechanic as every time you start it, would be doing more damage.
Cost me 2k for a bottom end rebuild.

Re:Sw20 turbo engine knocking (MRVirgin)

Sun, 23 Sep 2012 01:39:51 GMT

A quality video of the rattle/knock with sound can speak 10,000 words.

Re:Sw20 turbo engine knocking (Groper)

Sat, 22 Sep 2012 20:49:59 GMT

MR2Slide,
Hope you are able to get big end sorted and that there hasn't been damage caused to the crankshaft.
BTW the correct term for pre-ignition is "Pinking" (not pinging).
cheers
Steve" />

Re:Sw20 turbo engine knocking (Firthy)

Sat, 22 Sep 2012 19:58:54 GMT

Definitely pinging/detonation or just knocking? Have you ruled out things like engine mounts/suspension mounts etc if it happens with any of those things?

Recommend IDB over Anson Auto.

Re:Sw20 turbo engine knocking (chausta)

Tue, 11 Sep 2012 22:39:24 GMT

are you sure its the bottom end? I'm always paranoid about strange noises from my engine but it always turns out to be nothing bad

Re:Sw20 turbo engine knocking (purple5ive)

Thu, 06 Sep 2012 09:33:10 GMT

MRTurbo

detonation is a killer...

Pinging (detonation) and Bearing rattle/knocking are two different things, Just saying....

for mechanics in melbourne, depending on what part your from theres a few options but everyone seems to go to IDB or ANSON auto in richmond they are next door to each other.

Re:Sw20 turbo engine knocking (Road and Track)

Thu, 06 Sep 2012 07:15:11 GMT

we have a selection of used and rebuilt engines