Search found 2390 matches

by jondee86
Tue Jul 09, 2019 5:01 pm
Forum: TECH: 4A-GE ENGINE
Topic: Tips on Oil Restrictors
Replies: 18
Views: 516

Re: Tips on Oil Restrictors

Getting a bit off topic so I added an edit to this post...
viewtopic.php?f=9&t=12011

Cheers... jondee86
by jondee86
Tue Jul 09, 2019 4:26 am
Forum: TECH: Corolla AE86
Topic: Could LED sealed beam melt a headlight plug?
Replies: 2
Views: 117

Re: Could LED sealed beam melt a headlight plug?

LED lamps should not draw any more current than the OEM incandescent lamps so if the plug melted it is likely there was some kind of short or arcing from a bad connection. You need to replace the damaged plug... maybe you can find one from an 80's Toyota at the junkyard. Take the plug complete with ...
by jondee86
Sun Jul 07, 2019 9:34 pm
Forum: OWNERS and BUILDERS
Topic: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p
Replies: 196
Views: 43677

Re: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p

When I changed the lower control arms on my car the attachment point for the tension rods moved out a bit and that pulled the LCA's forward. So rather than fiddle with the staked nuts on the tension rods I used a couple of 3mm washers for adjustment... https://i.imgur.com/0Angn4S.jpg With two washer...
by jondee86
Sun Jul 07, 2019 6:04 pm
Forum: TECH: 4A-GE ENGINE
Topic: Where does oil pressure come from ??
Replies: 10
Views: 216

Re: Where does oil pressure come from ??

Agreed. There is no doubt that additives work, and the big oil companies spend a lot of time and money on researching and evaluating the apecific additives that they put into their oil formulations. The confusion arises when small bottles of oil additives are sold over the counter with spurious clai...
by jondee86
Sun Jul 07, 2019 3:38 pm
Forum: TECH: 4A-GE ENGINE
Topic: Where does oil pressure come from ??
Replies: 10
Views: 216

Re: Where does oil pressure come from ??

If you want another interesting subject try lubrication chemistry or HP additives. Not sure if I want to open that can of snake oil :) My opinion is that if you use a quality oil with the correct grade, you should not need any additives. However, when I rebuilt the engine I am running now, I did us...
by jondee86
Sun Jul 07, 2019 2:41 am
Forum: TECH: 4A-GE ENGINE
Topic: Where does oil pressure come from ??
Replies: 10
Views: 216

Re: Where does oil pressure come from ??

And finally, about the best article on the engine lubrication system I have ever read. Written for the Audi 1.8 turbo engine but the basic principles apply to all internal combustion engines. https://www.audizine.com/forum/showthread.php/610203-1-8t-Oil-Pressure-Survival-Guide-and-troubleshooting-DI...
by jondee86
Sun Jul 07, 2019 12:48 am
Forum: TECH: 4A-GE ENGINE
Topic: Where does oil pressure come from ??
Replies: 10
Views: 216

Re: Where does oil pressure come from ??

Oil Pressure Tech by Kennedy’s Dynotune Oil Pressure Tech Is oil pressure important? In a sense, NO. But that’s an exaggeration to get your attention. What IS really important is oil flow. The plain bearings in an engine work as follows. There is no metal to metal contact except at startup and shutd...
by jondee86
Sat Jul 06, 2019 11:28 pm
Forum: TECH: 4A-GE ENGINE
Topic: Where does oil pressure come from ??
Replies: 10
Views: 216

Re: Where does oil pressure come from ??

Surprising what you can find if you poke around the interweb. The below is lifted from a really old post on MR2OC talking about a 16V 4AGE build. "Drain backs are on the right rear of the block. Oil pools there on high G left hand turns on the front engine rear drive cars.. Front wheel drive la...
by jondee86
Sat Jul 06, 2019 11:09 pm
Forum: TECH: 4A-GE ENGINE
Topic: Tips on Oil Restrictors
Replies: 18
Views: 516

Re: Tips on Oil Restrictors

Some moderately relevant stuff in this thread... http://forum.diyefi.org/viewtopic.php?f=15&t=2702
and worth a read :)

Cheers... jondee86
by jondee86
Sat Jul 06, 2019 4:50 pm
Forum: TECH: 4A-GE ENGINE
Topic: Where does oil pressure come from ??
Replies: 10
Views: 216

Where does oil pressure come from ??

Copied from the SYNFORCE web site and worth a read :) OIL PRESSURE, THE REAL STORY... A customer changes their brand of oil and then complains of low oil pressure ... is this perception or reality and is low oil pressure inherently bad, why don't customers complain about high oil pressure? Customers...
by jondee86
Sat Jun 29, 2019 6:43 pm
Forum: TECH: 4A-GE ENGINE
Topic: Freshly Rebuilt 20V Silvertop
Replies: 11
Views: 402

Re: Freshly Rebuilt 20V Silvertop

https://www.sq-engineering.com/product/ ... king-tool/

BG probably have them in stock.

Cheers... jondee86
by jondee86
Thu Jun 27, 2019 1:24 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

The wiring diagrams that I have don't show any fuse in the injector power supply. The relay gets power directly from the battery (via one of the fusible links) and the relay is energised by 12V from the ignition switch. So basically if 12V appears at the injectors when you turn the key ON you are go...
by jondee86
Tue Jun 25, 2019 2:28 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

Best place to test for fuel flow/pressure is at the outlet hose from the fuel pressure regulator. Take the return hose off and fit a spare piece of hose so that you can run the open end into a clear container. Turn the ignition ON and force the pump to run by jumping the fuel pump test plug or openi...
by jondee86
Fri Jun 21, 2019 3:51 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

Maybe we are both misunderstanding each other. Such things are possible :) And of course, you are correct in saying that if 12V is supplied to a component, that 12V must eventually be grounded to complete the circuit and activate the component. However, there are a couple of misconceptions that com...
by jondee86
Fri Jun 21, 2019 12:16 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

The resistor pack does not need to be grounded. It is just 12V in and 12V out and there is no reason for grounding. OK, so I was shooting from the lip there. When the circuit is not active it is 12V in and 12V out, but when it is active it is more like 12V in and 3V out due to voltage drop across t...
by jondee86
Thu Jun 20, 2019 7:55 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

Image
by jondee86
Thu Jun 20, 2019 4:01 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

The resistor pack does not need to be grounded. It is just 12V in and 12V out and there is no reason for grounding. https://i.imgur.com/xJWoyLP.jpg As the injectors are batch fired and not sequential, it really does not matter how they are paired up. But the circuit is designed to have two injectors...
by jondee86
Thu Jun 20, 2019 4:24 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

The fuel injector pulse is only a few milliseconds, so the noid light will only show a very brief flicker of light while cranking. After a extended period of cranking your plugs should be wet with fuel when you check them. If they are wet swap them for a fresh dry set or dry them out over a gas burn...
by jondee86
Wed Jun 19, 2019 5:49 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

However, 3 of my injectors do earth back to pin10 and the other pin20 but they are wired in pairs on the power from the resister pack. Had a think about this and it is not ideal. The one injector will be getting a bit more current, and the three will be getting a bit less. Doubt if it is enough to ...
by jondee86
Tue Jun 04, 2019 1:37 am
Forum: TECH: 4A-GE ENGINE
Topic: Vacuum Line Question
Replies: 2
Views: 173

Re: Vacuum Line Question

Good question :) My guess and I am happy to be corrected, is that the hose is carrying the MAP sensor signal. I have attached a couple of pics to explain... https://i.imgur.com/nUH0GPx.jpg On the AE111 the MAP signal is obtained via the grooves machined into the face of the intake manifold. Each int...
by jondee86
Mon Jun 03, 2019 2:43 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

It is not that unusual for some wires to be missing if the same ECU is used for different versions of the of a vehicle. Since E1, E01 and E02 are all shown as running to the same ground point, it might be that E1 has been joined to one of the other grounds inside the ECU. If the engine has run with ...
by jondee86
Sun Jun 02, 2019 6:18 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

E1 would normally be the third brown wire on the ring connecter. The 88 and 89 AW11
wiring diagrams show that the pin should be in the same plug as the E01 and E02 pins.

Cheers... jondee86
by jondee86
Sat Jun 01, 2019 6:07 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

Yes... if the E01 and E02 pins are not connected to ground the ECU cannot
ground the injectors to fire them and you get no fuel.

Cheers... jondee86
by jondee86
Sat Jun 01, 2019 3:02 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

They end up here...

Image

They are two of the brown wires on this connector that is clamped by one
of the bolts that holds the engine wiring harness to the top of the intake manifold.

Cheers... jondee86
by jondee86
Fri May 31, 2019 3:34 pm
Forum: TECH: 4A-GE ENGINE
Topic: old ignition set up from japan!
Replies: 8
Views: 432

Re: old ignition set up from japan!

Both the Nodiz (= no dizzy) and Megajolt eliminate the distributor entirely, but need a 36-1 or 60-2 crank trigger wheel to be installed. Another possibility is Microsquirt (a member of the Megasquirt family) that can use the cam position and rpm triggers that are in the base of your distributor to ...
by jondee86
Fri May 31, 2019 5:23 am
Forum: TECH: 4A-GE ENGINE
Topic: old ignition set up from japan!
Replies: 8
Views: 432

Re: old ignition set up from japan!

That's some old school electronics there... and the website classifies that collection of parts as "Junk" !!!! I would say your chances of getting it to work would be slim, but if you are a gambler you could try :) There are other systems around (Megajolt, Nodiz etc) that you could use. Th...
by jondee86
Thu May 30, 2019 2:19 pm
Forum: TECH: Corolla AE86
Topic: Crank no start after warmed up
Replies: 4
Views: 322

Re: Crank no start after warmed up

After you have been driving for a while and stop the car, pop the hood and
see if any of the relays in the under hood fuse box are REALLY hot. If you find
one that burns your hand, replace that one.

Cheers... jondee86
by jondee86
Mon May 27, 2019 1:31 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 100
Views: 5313

Re: 4AGZE Injectors Not Firing

If the igniter has a metal case and there is no separate ground wire, then
it will ground thru the case and must be bolted down.

Cheers... jondee86
by jondee86
Sun May 26, 2019 2:31 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE SC Runs Rough at WOT
Replies: 2
Views: 259

Re: 4AGZE SC Runs Rough at WOT

Before this all went south my idle was very high--2000rpm plus. I couldn't get it to consistently stay at a normal speed. You should check your ignition timing. High idle is one sign that the ignition is too far advanced. Engine kicking back when cranking is another sign. If the timing is good then...

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