ke70dave

Put it closer to 8deg at idle with the vacuum line unplugged and blocked and see how it goes. that's the stock value. I never had any success running uber advanced timing on stock K motors, or any old two valve engines. They just have an old combustion chamber design that cant handle advanced timing. I cranked the timing on my old Suzuki g13a engine thinking i was a backyard tuning god and when i was driving around on the road it "felt faster", i then took it to the beach and the engine really didnt perform well under high load. I backed the timing off on the beach back to stock and it felt "slower" but under load it performed much much better. It wasnt audibly pinging but it was definately worse with the advanced timing. You have to remomber that what you are trying to achieve is maximum toruque out of the engine. It is very possible, and ive seen it in my suzuki engine that you can lose torque from advanced timing without getting to the point of detonation.

What happens if you retard the timing to closer to 10 and make it idle by adjusting the idle.

I have no issue with revving engines when bleeding, never had a problem. get a bit of heat into it and the thermostat starts to open, give it a rew revs and watch the bubbles come out, all good. I've even run engines long enough to get it in and out of the garage with no coolant and all has been well (~10secs). Sure not recommended by anyone, but in reality in my limited anecdotal experiences it doesn't hurt.

hang on, your 4kc is in a little 4wd isnt it jeremey? so the radiator might be lower than it normally is in a corolla?

Not if the points are adjusted and installed properly. I ran points for years and never had an issue. Clean thw points with alcohol, Adjust the gap properly, set the damm timing with a light and you will get 10,000km at least without touching the points.

You guys are massively complicating this..... Do all the hose clamps up, put the heater on hot, fill it with coolant start the engine, give it a few revs (i dont buy into this premature revving whatever, if its got some water rev all you want to get bubbles out), let it heat up, give the hoses a few sqeezes, fill it up when all the bubbles come out, take it for a spin, check the coolant again when it cools down. DONE! The internet carries on about bleeding cooling systems being difficult but the reality is if you follow the above, crack open any bleeder screws (4k doesnt have any, but some engines do) i would say it would be a 95% success rate. The other 5% require the funnel. Jeremy your description of removing the thermostat to bleed the engine is a waste of time. If this was required toyota would have put a bleed screw on top of the thermostat housing. My bmw engine has a bleed screw here cause the radiator is lower than the thermostat housing.

Too old post. Locked.

It needs to he perfected before doing anything else......start with 8deg btdc at idle

Have you confirmed the harmonic balancer markings and set the ignition timing with a timing light yet?

Well more progress was made today. I decided to join a wire to every pin including all spares to make it easier to add stuff in the future. Tested the fuel pump output and it seems to work. All that is left is to add in the CAS wiring. I think ill go to jaycar and buy some microphone cable for the cas. Seems to be the go. The grey casing of the db37 is a reaaaally tight squeeze. Im away for work this week so i might use my down time to design somethhng better and then 3d print it next weekend. Then its just a matter of putting my wideband back in and wiring in the power and ground on the loom. And adding a bit morw loom tube where required. But that might have to wait till next weekend.

I would look at any fwd car at tge wreckers and just see what fits. I would ve trying to get one that is as low profile as possible. The 80s fwd fans were all huge! The other thung to consider is i would get the biggest single fan that fits. Mainly cause the smaller the fan the noisier it will be....

Right well today was a fun day. Made me this! Megasquirt 2 on a diydave custom loom. For those of you following along this time last year i tried and failed with the haltech e8. Turned out the haltech was faulty and i gave up. Picked up this MS from my mate who ive known for yrs. This exact MS is the one i heloed tune prolly 10yrs ago now. It was sitting around amd i decided it needed a new home. I originally anticipted making an adaptor loom fpr the stock loom but it turns out this engine actually runs batch fire injection! Batch! So rather than try and and mod it i made my own loom with a semisequential setup. As of this arvo the tps , coolant temp, intake temp and all the injectors are done and have been bench tested using the inbuilt testing in the MS. Im going to make a second loom that will include the ignition wires, CAS and wide band. I dunno when ill get actually get it installed but there is some progress happening:D

Yah my VDO temp gauge is stuck right next to the thermostat, When i turn off the engine for 5-10mins and come back the VDO gauge is often near 100degC, then you start the engine and it immediately falls down to its running temp of 82deg, which as mentioned is right on the temperature of the thermostat:)

look at all this science! how exciting. Love the pre-post temperatures above. I always wanted to do a pre-post temperature across an intercooler. Be very nerdy and interesting to watch the delta T change in different conditions.

Starion! That is a name i havnet heard in a long time. Almost as long ago as Cordia.... Super cool and looks quite well done. RWD 4age in a car that small must be a hoot to drive.

Damn that looks awesome. Did you make the wide body? I want a kp61:( But my kp61 wont have those horendous bumpers:p

Supercheap seems to have its own branded hoses on the shelf now as well as gates. Im very wary when companies come out with their own brand of stuff. Like repco branded bearings....

The k motor dizzy gear has 12 teeth i think. So its possible for it to run but be a tooth out and be miles too advanced.

Sounds like your timing is just miles out. Back it off by ear until it idles nice and try again. Backing off the ign will probably drop the idle so you will need to adjust that at the carby.

Have you been using a timing light?

Whats the next trd project?

Oh dear. I wonder why that happened. I suppose 10yrs is a long time juat sitting there. Ive never put urethane bushes in any of my cars.....until this week. Some whiteline control arm bushes popped up on special in the post xmas sales. I will have to minitor them.

Im tempted to get motor trend on demand to check out the "roadkill garage " show. Latest roadkill with stubby bob and tony angelo is soo good.

Alternator regulator playing games? 9v is very low. Is the alternator charging? Or a cell in the battery is starting to bridge internally.

Super nice corolla here.