Knocking noise in head / Top end of engine

Re: Knocking noise in head / Top end of engine (Mrskylighter)

Wed, 27 Nov 2013 12:44:44 GMT

Stroker crank for $2600??? Get one from a Camry for $50-$100 and have the journals turned down to suit 3sgte rods.

Re: Knocking noise in head / Top end of engine (Treay81)

Wed, 27 Nov 2013 12:32:49 GMT

Ok. End result is a lovely combination of a stuffed valve, needs rings and a big end bearing absolutely stuffed. Have looked at all my options and building a tough bottom end is going to take time and a big chunk of money so I have purchased a gen 2 engine package which is supposedly In good condition, I will get a mechanic to throw that in for me as I have to go back to work so am away again for a while. Then I'll get my old bottom end and rip her apart and start to tinker. Have priced up a stroker crank from ppm to give it a 91mm stroke but with the finish it priced up at $2600 alone!.(the complete forged stroker bottom end in my 347 Windsor was only 3100 and that cam with rods, pistons and rings!) So maybe that's one for the wish list. I'll just see how I'm going as I get it cleaned up. First things first I need to get her going so I can keep driving it.

Have decided to sell my 65 coupe and just focus on my 2 for now so I'll probably put her up for sale soon.

Re: Knocking noise in head / Top end of engine (Treay81)

Sat, 23 Nov 2013 20:29:46 GMT

Got home yesterday, began working on the MR2 until the storms ripped in. so had to leave her there, hadn't managed to get much done as it took me a few hours just to get the bloody Frunk open!.

drained the oil this afternoon once the rain had stopped, then removed the covers and the sump, sure enough cylinder 2 has a big end loose as a goose!. so its a big end for sure. stuck the inspection cam down each cylinder and all pistons appear to be in good order as do the bores.

now I need to decide how to move forward.

thinking a quick hone, throw a set of standard size forged pistons in and a set of H beam rods, try to track down a new crank so it saves me worrying about getting this one machined and fitting oversized bearings etc.

cant wait to get her done and driving again.

Re: Knocking noise in head / Top end of engine (Treay81)

Sun, 20 Oct 2013 00:57:39 GMT

I was contemplating doing the rebuild myself, only downside being my lack of time as I get very little time at home. But I guess I'll go the built bottom end route if this is best. When I get home in November I'll strip her and have a look at what the insides are like.

Re: Knocking noise in head / Top end of engine (Timbo)

Sat, 19 Oct 2013 17:36:10 GMT

I just went through the same thing and decided to rebuild my gen2. I got ct20b and all the parts i needed off dylan for a really good price. If you can at least drop the motor and put it back in yourself its a better result than an unknown condition gen3. My rebuild owes me about $2500 but i did everything except machining and balancing

Re: Knocking noise in head / Top end of engine (just_ace)

Sat, 19 Oct 2013 14:50:41 GMT

If you can afford a decent rebuild then imho that is always best.

Re: Knocking noise in head / Top end of engine (Treay81)

Sat, 19 Oct 2013 14:02:38 GMT

So, I can find a Gen 3 3SGTE with Loom and Ecu on Ebay,

Engine has 110,000kms on it, the guy cant tell me if it had good compression or not when they removed it and sent it to Australia etc. so it is an unknown. The price is $2800 + freight.

Does anyone think its worth the shot or just bite the bullet and rebuild my engine with H Beams, forgies and a balance?.

Appreciate your thoughts.

Re: Knocking noise in head / Top end of engine (Treay81)

Wed, 16 Oct 2013 15:17:05 GMT

well, mechanic has reported back today to let me know the engine is stuffed. He said it has no compression in cylinders 1 and 2. most likely piston damage etc.

Apparently there is no longer a machine shop in Dubbo so I told them to just leave it and i'll pay him for what ever investigation work he has completed and take the car home to work on it myself. guess i'll just take my time and put some goodies in there to make sure its a touch stronger this time round.

I have looked at some engines to just do a straight swap but im a little nervous about going a used engine now as I don't want to risk buying a lemon... again haha.

Theres a caldina GTT engine on ebay which is apparently only 25,000kms old, but it looks like crap so think i'll steer clear and just do it the hard way.

Re: Knocking noise in head / Top end of engine (Reddtarga)

Fri, 11 Oct 2013 14:02:53 GMT

I just checked a moment ago, and I can edit my signature exactly the way I described with no probs.
Maybe post a message to the admin/moderators.

Re: Knocking noise in head / Top end of engine (Treay81)

Fri, 11 Oct 2013 13:48:33 GMT

Error message is as follows:

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And I have tried it on 4 PC's with the same outcome?...

Re: Knocking noise in head / Top end of engine (Treay81)

Fri, 11 Oct 2013 13:46:19 GMT

Reddtarga
Treay81
(My sig wont change for me for some reason so I appear to still own my neat little NA which never broke down or faulted on me!)

Thanks for the heads up.

To edit signature:
Open user control panel at the very top of the page > signature and comments > always attach signature to posts > save profile.

I have been trying to change it for months now. But it keeps timing out with some error message "Error 404" what ever that means. doesn't matter if I try to change it all at once or just one thing at a time. got me buggered!.

Re: Knocking noise in head / Top end of engine (Reddtarga)

Fri, 11 Oct 2013 08:59:09 GMT

Treay81
(My sig wont change for me for some reason so I appear to still own my neat little NA which never broke down or faulted on me!)

Thanks for the heads up.

To edit signature:
Open user control panel at the very top of the page > signature and comments > always attach signature to posts > save profile.

Re: Knocking noise in head / Top end of engine (just_ace)

Thu, 10 Oct 2013 21:53:56 GMT

Always good to upgrade headstuds on a boosted engine. Also fit a mls head gasket.

Springs are fine for stock cams.

Re: Knocking noise in head / Top end of engine (Treay81)

Thu, 10 Oct 2013 19:23:58 GMT

My 2 is running the 3SGTE engine, does this vary the strength of the head studs and valve springs?. (My sig wont change for me for some reason so I appear to still own my neat little NA which never broke down or faulted on me!)

Thanks for the heads up.

Re: Knocking noise in head / Top end of engine (Reddtarga)

Thu, 10 Oct 2013 10:44:57 GMT

Treay81

Car will not be getting done til after Monday when the exhaust can be fixed up. If he has to remove the head I'll get it cleaned up and reco'd and have ARP head studs put in and upgrade the valve springs at the very least.

If anyone can offer any experience and tips that would be great as Im sure this new mechanic I am using this time round has zero experience on MR2's.

On a 3SGE NA motor the stock valve springs should be fine, unless you are updating cams.
You'll need new head bolts anyway, and the stock items should be fine as well if you torque them up strictly according to the service manual.

If the head needs recoing, first get it crack tested before any other work.
Then get the gasket surface dressed straight, check valve guides, valves, seals etc.

Good luck