07-22-2020, 12:30 AM
(07-21-2020, 11:37 PM)z1joshmon Wrote: ooh thank you so much for the advice on cleaning the fuel injector! I took your advice and read up on TBI (and EFI in general) and I have a better understanding of it now. I'm going to do the 'drip test' there that you showed me (I think it's called?) ASAP. I also saw your page about "snake oil" so what I did, since I don't have time this week, is put some of the Lucas Fuel Injector Cleaner in with my gas just until I can get in there.all of this above top is just what is called a tune up
I DID pour the contents of the fuel filter out actually and it was the #2 option that you wrote: and it only had gas and a little rust, surprisingly, no chunks! I was very happy at that. With this fix, it stopped losing RPM's while going uphill but I still feel just a tiny bit of a bogging down.. I'll get to that in a minute.
I also changed out the thermostat and WOW the difference that it's making! Instead of JUST getting up to the "C" at its warmest- it's sitting just short of halfway up (where it should be, in operating range!). I didn't flush it all of the way but I drained the radiator all of the way and filled it back up with more of the green anti freeze since I didn't know when the last time someone put antifreeze in PLUS I know that the silicates in particular can 'wear out' after about a year, or 10k miles. The O'Reilly guy actually tried to sell me the yellow Universal stuff- and I just didn't feel comfortable mixing them because I knew I wouldn't be flushing it entirely. I know that green+orange (conventional phosphate/silicate vs organic acid OAT stuff) can actually cause gelling of the liquid and god knows what problems down the road from that- and I know that a lot of the universal stuff is actually hybrid-OAT so I didn't risk it and stayed with the green stuff that it calls for. Once I saw that it is for sure getting up to temperature, I checked the ECT and it is sitting right at 300ohms when at 180* as it should :-). Also, JUST FOR THE RECORD FOR ANYONE READING THIS: IT TOOK THE 5MM RUBBER O-RING (1993 2dr 1.6L 8v TBI w/ 3sp auto and on-demand 4x4).
Also.. I am not smelling fuel in exhaust anymore (which tells me that because I fixed 'stat : it is NOT staying in WARM UP mode like it probably was before and therefore not running rich) BUT I am still smelling a little bit of exhaust when I let off of the gas and coast to a stop sign, ESPECIALLY if after a hill. I am really suspecting that the different things like running rich from being too cool, plus it looked like the PO just recently changed the O2 sensor AND muffler- and just the number of little things that I've fixed that were wrong- I am REALLY thinking that the catalytic converter may be clogged. I hear the little bit of a rattle when I first start up and when I'm backing out. Also, it is the only piece on my entire exhaust system that is rusty... the shield for the Cat looks fine but the pipes attached to it are rusty so I am going to take the CAT off and inspect it visually. I'll also hit it gently with a rubber mallet. I'm also going to test the temperature going in and the temperature going out. If I go to fix it, I am thinking that I'll just buy the pre-fabricated CAT that includes the piping that is rusty on mine. Otherwise I'll have to buy just the CAT and pay someone to cut the old one off and weld the new one on... and even then the old pipe may have a hole that I haven't spotted yet and it's rusty. So, while "ouch" on the price- it's the right thing to do provided that it IS clogged up a bit like I suspect. That exhaust when I let off of the gas- it just feels like excessive back pressure from a progressively more clogged cat (from running rich while it was cold).
Other problem I noticed- when inspecting the PRNDL spindle because I'm going to fix my back up lights sometime soon- I noticed that I indeed DO have oil seeping down slowly from the back of my engine onto my bell housing for the transmission. I inspected the Valve Cover Gasket a few weeks back and it's DEFINITELY not good BUT your warnings about the Distributor O-Ring going bad got me to look and it's bad for sure back there. I noticed that I will be able to get to the O-Ring relatively easy with the valve cover, in-take and air filter housing pulled off... but do you have any advice on when I change my valve cover gasket and distributor o-ring? I know that if I don't put the distributor back in EXACTLY as it was that it can cause my ignition timing to go out of whack. I have a shade tree friend with a little experience BUT is this something that I can do myself with the reasonable expectation of not messing things up too badly? If I need to get a pro to handle this then it wouldn't hurt my feelings too awful badly.I'm also thinking that while I have everything pulled out- I will hand-clean my throttle body. Is there anything else that I should fix or replace while I've got the valve cover off and I'm fixing that gasket plus the distributor o-ring ?
Other than that- which will essentially fix EVERYTHING that I had wrong.. I only have to worry about the ball joints, lower control arm bushings and then of course some new tires. I'm going to do that one myself as well (I'm getting a 2nd, back up set of jack stands for extra safety). Any advice on that job as well?
engine is good for 300k miles if well cared for, even more,
a tuneup (now called DOING SERVICE POINTS) is replacing parts before they fail, many parts do not last 300k miles, even tires fail.
fluids, belts /brakes.
spark plugs wires, spark plugs and filters.
all must be changed out, before they fail or risk getting stranded. (tow trucks are not cheap)
The thermostat as life span of 7 years, not 30. (some do not fail hard first they get slow, and the EFI does not like a slow STAT, and any slow stat is a clear warning of soon to go dead thermostat and next up overheating and warped head as the door prize.)
The antifreeze now has newer longer lasting additives, this is by law now, by law it must last longer, and is not HYPE, USA fed law, so can go 25k -50k miles
really it is driving cycles too.
when you start a car, the coolant is explosed to fumes from the combustion chamber, (very tiny) years ago it was sulfer from fuel now GONE so new fuel also
makes antifreeze additives fail soon.
The law want to see less antifreeze in lakes and streams, that is the goal. and does work.
it is very toxic.
you can run any antifreeze you want here, only costs are different and how long it lasts.
The new thermostat will now allow the EFI to actually work now.
infact that bad STAT wrecked the CAT, long ago , in fact with good cat and bad stat the CAT runs red hot and then wrecks it self.
$7 STAT wrecked a $150 CAT, or more for sure more labor on CAT swap not free.
on the 96 cars (your and all) the CEL blinks and the book tells you (glovebox) the CAT is being wrecked. and what to do..
OBD2 does that magic blink CEL (not a code just blinks endless)
OBD2 would would set DTC for slow or dead STAT. for sure.
that is why on old cars we use IR thermal gun to see that fail in seconds work. (no scan tool works on OBD1 suzuki cars,OTC tools, ZERO)
sounds to me like lots of progress, a generic cat will work sized for 1.6L - 2 Liters. any can be welded in super easy by any welder. (muffler shops easy)
no gaskets on this car are good but one, the one on the pan is glued on with pure RTV sealant no gasket there, out of any suzuki factory world wide.
the VC gasket is simple job. do not over torque bolts there.
the distrib must not lose time, do not do this wrong or you will no like how tricky it is to set up, like in 1920s to 1970, cars had distribs and same story.
here are the steps, saving hard work. 8valve. keys in pocket, for sure. keep all keys away from other persons in home.... for all this....
1: turn the crank shaft until TDC 0 is landed, (pointer) and with distrib cap off first and at same time get rotor to land on spark plug wire cap term #1 not #4
that is magic firing #1 TDC set up.
2: now with center punch or a Sharpee pen fine line maker , mark this.
see this photo I have marked, #1 spark wire, #1 is front cylinder on all these cars.
see that slotted, bolt (missing) clamp point. this is the base clamp timing set.
there is bolt there now, so put dot on center of bolt head the one more dot on flange just below here. that is called MATCH MARKING PARTS.
see end of this page for last steps.
last: pull dizzy, put on new orings, put dizzy back cap off and as you DROP the Dizzy the rotor wants to turn 13tooth spiral cut gear on bottom
so the goal is get the rotor back on #1 per above photo
and get the bolt back and aligned to your MATCH MARKS.
2 things align here, rotor tip to with paint above(liquid paper paint) and the match markes on the bolt and base, all at once.
drop the dizzy many times it takes to get both aligned correctly as as marked by you, step 1.
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