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> 3sgte died..., Cut out on me...??
post Dec 16, 2005 - 7:44 AM
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Celica_At_GT

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Well here is a little history first (since haven't posted on this board much - use to a lot on cnet (celica.net) back in the day though....

I had done a 3sgte engine swap and had a buddy do all the wiring for me (about 3 years ago). After finishing the mechanical stuff and putting th engine in, I found out the wiring was hosed. I took it to a shop to get it looked at and they put a microtech standalone ecu in it.

I finally got it running and it ran great for about 2 hours of usage and then just died on me. I haven't been able to restart it since then (but haven't been working on it too much)...

The pistons all seem to have really low compression (all around 90-100 psi). I am wondering if
1. what the compression should be.
2. if it is low, why is it low on all of the cylinders - does this mean the head gasket may have been put on wrong?? What could this imply?

Thanks for any assistance.
Ben
 
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post Dec 16, 2005 - 2:48 PM
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lagos



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compression should be around 164 or more. try doing the test again, and follow these directions.
http://www.celicatech.com/93rmsour/1993/93...em/compress.pdf

did you or anyone take the head off during your swap? why did you do the swap 3 yrs ago, and not work on the car since?

is the car cranking? are you gretting fuel or spark ?

why didnt you take the car back to the place that installed the stand alone as soon as you noticed that the car didnt want to run after 2 hrs.


--------------------
15PSI - 30MPG - Megasquirt Tuned
post Dec 16, 2005 - 3:41 PM
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Celica_At_GT

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QUOTE(lagos @ Dec 16, 2005 - 12:48 PM) [snapback]368058[/snapback]

compression should be around 164 or more. try doing the test again, and follow these directions.
http://www.celicatech.com/93rmsour/1993/93...em/compress.pdf

did you or anyone take the head off during your swap? why did you do the swap 3 yrs ago, and not work on the car since?

is the car cranking? are you gretting fuel or spark ?

why didnt you take the car back to the place that installed the stand alone as soon as you noticed that the car didnt want to run after 2 hrs.


The head was taking off during the swap - new head gasket and ARP head studs put in. I haven't really been working on it much because I just started a new job and lived in an APT and couldn't have a spot to do massives amount of work.

Now I bought my house I can.

The shop went out of business so i'm hosed there. I was fighting with them for a while, but they where saying since they didn't do the entire swap - it must be other components. They weren't a very big help...

The starter is turning, and there's both fuel and spark... - running out of ideas...

Should the compression be 164 when it hasn't run, or after it warmed up? If it is after running, do you know what it should be when cold?

EDIT: as a side not - I don't think I put the head gasket on wrong - I've changed head gaskets/timing belts/etc... before but anything is possible I suppose...

This post has been edited by Celica_At_GT: Dec 16, 2005 - 3:44 PM

Posts in this topic
- Celica_At_GT   3sgte died...   Dec 16, 2005 - 7:44 AM
- - presure2   well, as for the compression #'s, if the motor...   Dec 16, 2005 - 8:04 AM
|- - Celica_At_GT   QUOTE(presure2 @ Dec 16, 2005 - 6:04...   Dec 16, 2005 - 8:12 AM
- - defgeph   Check for vacume leaks, check your fuses, double c...   Dec 16, 2005 - 9:34 AM
- - Celica_At_GT   So I shouldn't worry about those compression n...   Dec 16, 2005 - 9:49 AM
- - defgeph   Check the sensors yourself, dont trust the standal...   Dec 16, 2005 - 9:56 AM
|- - Celica_At_GT   QUOTE(defgeph @ Dec 16, 2005 - 7:56 ...   Dec 16, 2005 - 10:28 AM
- - lagos   compression should be around 164 or more. try doi...   Dec 16, 2005 - 2:48 PM
|- - Celica_At_GT   QUOTE(lagos @ Dec 16, 2005 - 12:48 P...   Dec 16, 2005 - 3:41 PM
- - lagos   well... if you are getting spark and fuel, then ch...   Dec 16, 2005 - 3:57 PM
|- - Celica_At_GT   QUOTE(lagos @ Dec 16, 2005 - 1:57 PM...   Dec 16, 2005 - 6:32 PM
- - Bigmeanbulldog55   QUOTE(lagos @ Dec 16, 2005 - 3:57 PM...   Dec 16, 2005 - 8:18 PM
|- - Celica_At_GT   QUOTE(Bigmeanbulldog55 @ Dec 16, 2005 - ...   Dec 16, 2005 - 9:12 PM
|- - presure2   QUOTE(Bigmeanbulldog55 @ Dec 16, 2005 - ...   Dec 16, 2005 - 9:25 PM
|- - Rjb23   QUOTE(presure2 @ Dec 17, 2005 - 2:25...   Dec 16, 2005 - 9:28 PM
- - lagos   ok...i got a new saying then ....if it aint broke,...   Dec 16, 2005 - 10:11 PM
|- - Celica_At_GT   QUOTE(lagos @ Dec 16, 2005 - 8:11 PM...   Dec 17, 2005 - 7:23 AM
- - lagos   did u redo the compression test? what were your n...   Dec 17, 2005 - 2:05 PM
- - afroman   just gonna throw this out there but i was always t...   Dec 17, 2005 - 2:30 PM
- - zipstrips   why didnt you go back to the shop that installed t...   Dec 17, 2005 - 6:05 PM
|- - Celica_At_GT   QUOTE(zipstrips @ Dec 17, 2005 - 4:0...   Dec 19, 2005 - 7:22 AM
- - zipstrips   i still dont fully trust your standalone. find ano...   Dec 20, 2005 - 12:40 AM
- - lagos   yeah thats not enough compression for the engine t...   Dec 20, 2005 - 12:44 AM
- - 3rdgen3SGTE   It's time to install JE piston and do a oversi...   Dec 23, 2005 - 10:44 PM


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