93 V6 Camry- NO SPARK - Toyota Nation Forum : Toyota Car and Truck Forums

supercharged3.0 · 11-25-2009, 01:56 AM

Hey guys, really need some help. Basically, here is the story. I got a 93 V6 Camry 176,000 miles and the coolant in the radiator was really old. Bought one of these radiator FLASH chemicals and put it in to the radiator. Drove it like that 1 week with out any PROBLEMS and then changed the coolant and put a fresh antifreeze in it. After 1 day of driving the engine OVERHEATED and it's F$$ED!!!! It idles very rough , the RPMs are going up and down. When it is cold i can not drive it until it will not warm up. When it is warmed, it idles okay. Today, something happened and i could not start the engine any more, ---NO SPARK. Any idea? Just parked my car and that's it! Could be my timing belt?? I did tune up 2 days ago.
I have a street cleaning day and i have to fix her up as soon as possible.

chronoti · 11-25-2009, 08:58 AM

did you bleed the system good?

make sure it has coolant and the ect is still ok after that chem.

or you locked the water pump and snaped the timing belt.

whip_cracker · 11-25-2009, 02:30 PM

wow - never seen this happen from a coolant change.

Air-lock from not "burping" or "bleeding" the cooling system will make the car overheat, but not make the car have spark issues.

Did you spill a heap of coolant over the distributor? Did you drop anything on the distributor? Check that the main power cable for the distributor is properly connected. You can also take the plastic cover off the top of the engine and have a look at the front three spark plugs (if you have the right tools/extension pieces from your socket set) and see if there's a buildup of fuel or something like that.

If they're covered in any kind of fluid, you'll know where to start mate.

supercharged3.0 · 11-25-2009, 04:17 PM

Okay guys!!! Here is what is going on. Basically, i opened the timing cover today and the timing belt was "OKAY", but, when i hit the starter, it did not move, which means it could be cut . I took off more parts to see if i can take look on the timing belt, better and then i saw it... the crankshaft area where the belt use to be driven by a crank, the tuths were ate and they are gone, but the belt WAS NOT CUT. Basically, i think i have some BENDED VALVES too(((((((((((( on the both cylinder heads, because when i took of the belt, i could not ROTATE the cylinder head's shafts, they seems locked.

whip_cracker · 11-25-2009, 04:33 PM

Mate,

Get a mobile mech out there to clarify that one... preferably a mech that KNOWS what they're talking about too

***BMR*** · 11-25-2009, 05:51 PM

supercharged3.0 - The 3VZ-FE motor in your Camry is non-interference, so the valves cannot be bent from a broken timing belt. And I suspect it simply requires quite a bit of torque to rotate the camshafts; more than can by applied by hand.

supercharged3.0 · 11-25-2009, 07:35 PM

I hope it is non-interference, because i applied enough torque with a tool and it still in not moving position . Another side, which is close to the radiator, had the same problem, but it took less torque to rotate the shaft. I am going to tow my car in to my house and tomorrow i will take a better look and some pics for you guys

zppeacock · 11-25-2009, 07:48 PM

didnt the 93 have the 1mz?

***Gothmog3VZ*** · 11-25-2009, 07:52 PM

Last I checked, my '93 had a 3VZ-FE; I'm just going to go make sure toyota didn't swap it out

seriously, yeah. the 94+ was 1MZ, but ONLY the north american market

supercharged3.0 · 11-26-2009, 12:31 AM

Guyyyyysss... i do not have any idea what i have...VZ or FE or zz...mz.. bla bla bla.

I know for 99% my cylinder heads are F$$ED, the valves are bended ; Where can i look up to see what engine do i have?

chronoti · 11-26-2009, 04:49 AM

i4 = 5s
v6 = 3vz
swaped in waist spark v6 = 1mz
swapped in waist spark i4 with vvti = zz or az if it has vvti-l the gie it to me you have a 2zz in it.

***BMR*** · 11-26-2009, 06:59 PM

Quote:

Originally Posted by supercharged3.0

Guyyyyysss... i do not have any idea what i have...VZ or FE or zz...mz.. bla bla bla.

I know for 99% my cylinder heads are F$, the valves are bended ; Where can i look up to see what engine do i have?

Unless your '93 Camry came from another country, it's got the 3VZ-FE motor with an iron block. In '94 they switched to the 1MZ with an aluminum block. So you could check the block to see what it's made of. Another way to tell is to look on the timing belt cover; it should have "3VZ-FE" molded right into it.

Either way, both motors are non-interference, so the broken timing belt cannot have caused bent valves. As for why you can't rotate the camshafts, I can't explain that. Is the T-belt completely off now?... so when you're trying to rotate a camshaft, it's only trying to rotate ONE, right?

Dick Tuck · 11-26-2009, 07:23 PM

Engine overheated... head gasket gone...water in the cylinder bores... can't compress it. Or the waterpump may be locked as someone else already suggested and the belt lost teeth trying to turn it.

Dick Tuck · 11-26-2009, 07:29 PM

I think you mean "waste" spark the system which fires two plugs at a time? If the timing belt drives the distributor on that engine, the reason for no spark is clear.. the distributor is not turning either.

***BMR*** · 11-26-2009, 08:25 PM

Quote:

Originally Posted by Dick Tuck

If the timing belt drives the distributor on that engine, the reason for no spark is clear.. the distributor is not turning either.

Yeah, the 3VZ-FE motor in the OP's car has a distributor that's driven off the rear bank's intake camshaft. So the broken T-belt explains the no spark symptom.