Search found 2752 matches

by jondee86
Fri Jul 23, 2021 6:03 pm
Forum: TECH: 4A-GE ENGINE
Topic: HIGH comp Big port carby build with MANY questions
Replies: 39
Views: 9132

Re: HIGH comp Big port carby build with MANY questions

If you have the engine out of action for a while, drain the oil out of the pan and put it in a large container. Let it sit for a few days and any water mixed with the oil should separate out. Then very carefully and slowly decant the oil into a second container until there is just a small amount of ...
by jondee86
Fri Jul 23, 2021 3:12 am
Forum: TECH: 4A-GE ENGINE
Topic: HIGH comp Big port carby build with MANY questions
Replies: 39
Views: 9132

Re: HIGH comp Big port carby build with MANY questions

MLS head gaskets generally require a finer (smoother) surface finish than than OEM composite gaskets. If you are uncertain of the piston to head clearance, and the finish on the head and block is not specifically prepared for a MLS gasket , you would be better off installing a fresh OEM composite ga...
by jondee86
Thu Jul 22, 2021 3:35 pm
Forum: TECH: 4A-GE ENGINE
Topic: HIGH comp Big port carby build with MANY questions
Replies: 39
Views: 9132

Re: HIGH comp Big port carby build with MANY questions

If the engine is running fine/normally then the cylinder sealing is likely OK. The water leak is probably between the oil and water passages where they pass thru the head gasket... https://haynes.com/en-us/tips-tutorials/7-different-ways-head-gasket-can-fail Because the pressure differential is lowe...
by jondee86
Wed Jul 21, 2021 4:24 pm
Forum: TECH: 4A-GE ENGINE
Topic: HIGH comp Big port carby build with MANY questions
Replies: 39
Views: 9132

Re: HIGH comp Big port carby build with MANY questions

I'm curious as to why your temperature would go up to 90 and then drop quickly when you rev the engine. Do you have a thermostat installed ? Do you have an electric cooling fan ? If your radiator overflow hose went all the way to the bottom of your soda can, and you fill the radiator to the the top ...
by jondee86
Thu Jul 08, 2021 3:04 pm
Forum: TECH: 4A-GE ENGINE
Topic: Welded injector ports
Replies: 3
Views: 182

Re: Welded injector ports

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by jondee86
Sun Jun 20, 2021 3:09 pm
Forum: TECH: 4A-GE ENGINE
Topic: Bigport, Weird engine sound
Replies: 8
Views: 1906

Re: Bigport, Weird engine sound

The "sound" is reported as being temperature dependent and also that it suddenly became more noticeable. This tends to point towards some operating condition of the engine having changed. Without being able to offer any scientific reason, when I have been fiddling with engines I have found...
by jondee86
Fri Jun 18, 2021 10:49 pm
Forum: TECH: 4A-GE ENGINE
Topic: Bigport, Weird engine sound
Replies: 8
Views: 1906

Re: Bigport, Weird engine sound

If you watch the first three minutes or so of the linked video, you will hear the "grunt" for want of a better word, produced by a typical 4-cylinder engine when the throttle is blipped. It is a kind of deep throaty sound and is very obvious on engines with open ITB's or carbs. It is mostl...
by jondee86
Sat May 01, 2021 1:38 am
Forum: TECH: Corolla AE86
Topic: ECU/tuning
Replies: 9
Views: 1312

Re: ECU/tuning

Suggest you talk with Battle Garage about Haltech... https://shop.battlegarage-rs.com/collec ... nd_haltech
They should be able to hook you up with all you need.

Cheers... jondee86
by jondee86
Tue Apr 27, 2021 3:36 pm
Forum: TECH: 4A-GE ENGINE
Topic: Spark knock question
Replies: 2
Views: 619

Re: Spark knock question

Take a look at your sparkplugs... do a plug "chop". Straight after the finish line or as soon as you can safely do it, switch off the engine and pull the plugs. Get hold of a jeweler's loupe or a 5 to 10 times magnifier and examine the porcelain part of each plug looking for signs of deton...
by jondee86
Wed Apr 07, 2021 9:42 pm
Forum: TECH: 4A-GE ENGINE
Topic: blacktop air box
Replies: 3
Views: 806

Re: blacktop air box

As you are using an aftermarket ECU it is highly recommended that you install a Wide Band O2 sensor and controller. The WBO2 sensor can read a full range of lambda values and the controller will process the sensor output into a 0-5V signal that your ECU can use to keep your AFR on target. The contro...
by jondee86
Sat Apr 03, 2021 3:44 pm
Forum: TECH: 4A-GE ENGINE
Topic: blacktop air box
Replies: 3
Views: 806

Re: blacktop air box

A long while back I looked to see if I could use the factory intake plenum on my ITB converted RWD car, but had to give it up as there simply was not enough room. I liked it because it had a decent volume, was a good solid two-piece steel box and I could have used the factory trumpets. The factory C...
by jondee86
Sat Mar 27, 2021 1:08 am
Forum: TECH: 4A-GE ENGINE
Topic: TRD Gasket, Stock 4age
Replies: 17
Views: 3631

Re: TRD Gasket, Stock 4age

Never tried posting/linking a video before, so hope this works :) If it does it will
be a short video from my archives that shows what my car sounded like when it was
running N.A. with ITB's and cams. https://i.imgur.com/JsnZvRJ.mp4

Cheers... jondee86
by jondee86
Thu Mar 25, 2021 1:46 pm
Forum: TECH: 4A-GE ENGINE
Topic: TRD Gasket, Stock 4age
Replies: 17
Views: 3631

Re: TRD Gasket, Stock 4age

Best way to check for spark tracking or jumping to ground is when it is dark. Sparks are much easier to see at night. Idle sounds like an engine with a "hot" cam should. Fine tuning the ignition timing can smooth it out a little, and adjustable cam gears can can be used to open up the lobe...
by jondee86
Wed Mar 24, 2021 12:21 am
Forum: TECH: 4A-GE ENGINE
Topic: TRD Gasket, Stock 4age
Replies: 17
Views: 3631

Re: TRD Gasket, Stock 4age

The cam pulleys should be identical. The only difference is how they are installed with regard to the knock pins. Refer to the above sketch. On the intake side the knock pin is at around 11 o'clock in the first slot and on the exhaust side it is at around 5 o'clock in the second slot. - Did you chec...
by jondee86
Tue Mar 23, 2021 2:26 pm
Forum: TECH: 4A-GE ENGINE
Topic: TRD Gasket, Stock 4age
Replies: 17
Views: 3631

Re: TRD Gasket, Stock 4age

Sounds to me like your either your cam timing is wrong or your ignition timing is way out. You need to take the top two parts of the timing belt cover off. Then turn the engine over by hand until the #1 piston is at TDC on the compression stroke. Check... 1. That the timing mark on the crank pulley ...
by jondee86
Mon Mar 22, 2021 3:08 pm
Forum: TECH: 4A-GE ENGINE
Topic: TRD Gasket, Stock 4age
Replies: 17
Views: 3631

Re: TRD Gasket, Stock 4age

Are the PON cams designed to "drop in" using the OEM cam pulleys and the OEM cam timing marks ? By that I mean that the knock pins in the cams have been indexed by Tomei to set the cams at their design timing when used with the OEM pulleys and timing marks. If this has not been done then y...
by jondee86
Sat Mar 20, 2021 2:29 pm
Forum: OWNERS and BUILDERS
Topic: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p
Replies: 228
Views: 132715

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

Got some different wheels as I like this style better... https://i.imgur.com/qVSESWR.jpg Put some Bridgestone RE003 tires on them and have to say they are have amazing grip in the wet !!!! Upgraded the intercooler, flashed a MHD tune on the ECU and an xHP transmission tune. Refreshed the suspension ...
by jondee86
Thu Mar 18, 2021 3:17 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGE 16V head on a 20V black top?
Replies: 4
Views: 1132

Re: 4AGE 16V head on a 20V black top?

... and 16V coil, igniter, distributor and plug leads.

Cheers... jondee86
by jondee86
Sun Mar 14, 2021 3:31 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGE 16V head on a 20V black top?
Replies: 4
Views: 1132

Re: 4AGE 16V head on a 20V black top?

Two Things You Need to Do to Get Out of The Hole You're In ... If you are currently in a hole, here are two tips on how to get out. Stop digging long enough to recognize that you are in a hole. Digging the hole deeper will only make it harder to climb out. When things are going wrong, and you find ...
by jondee86
Fri Mar 12, 2021 2:30 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4AGE black top help
Replies: 9
Views: 1467

Re: 4AGE black top help

This link... https://locost7.info/files/engine/4age_blacktop/bt4-em.pdf contains all the information you need for an engine teardown. It is one of the links from locost given above and you should at least browse all the links so you can get an overview of how the engine works. When taking the engine...
by jondee86
Sat Feb 27, 2021 7:30 pm
Forum: TECH: Corolla AE86
Topic: Odd heater behaviour
Replies: 9
Views: 2000

Re: Odd heater behaviour

Just checking... but you have checked that when the cabin control is set to full heat the heater tap is also wide open (spindle fully up) ? If the core was clogged I wouldn't expect the heater to work fine for a while and then suddenly stop working. None the less, I would suggest reverse flushing in...
by jondee86
Fri Feb 26, 2021 3:41 pm
Forum: TECH: Corolla AE86
Topic: Check Engine Light, goes off @ 4000 ish rpms
Replies: 13
Views: 5067

Re: Check Engine Light, goes off @ 4000 ish rpms

No worries... I love a good mystery :) Was thinking that maybe the Ne signal from the distributor was weak until the engine reached that 4100rpm tripping point. If it was and if you have the VAST ignition system, then the ignition would stay at base advance (10 DBTDC) until the signal got strong eno...
by jondee86
Thu Feb 25, 2021 12:43 pm
Forum: TECH: Corolla AE86
Topic: Check Engine Light, goes off @ 4000 ish rpms
Replies: 13
Views: 5067

Re: Check Engine Light, goes off @ 4000 ish rpms

My bad... was thinking the light went off at high rpm but wrote that it came on... DOH !!! You can make the checks and tests that I suggested. And if the light is ON when the engine is idling you can get someone to watch the CEL while you manipulate the wiring near the distributor. When the car is r...
by jondee86
Tue Feb 23, 2021 3:57 pm
Forum: TECH: Corolla AE86
Topic: Check Engine Light, goes off @ 4000 ish rpms
Replies: 13
Views: 5067

Re: Check Engine Light, goes off @ 4000 ish rpms

1. Does the CEL light come on in every gear at around the same rpm ? Like if you go from a standing start and rev to 5000rpm before changing... does it on come on in every gear or only when you get to 3rd or 4th ? 2. If you raise the rpm to 5000 in neutral while stationary, does the CEL come on ? Th...
by jondee86
Sat Feb 13, 2021 2:13 pm
Forum: TECH: Corolla AE86
Topic: cannot get Link AtomX tach output to work with factory cluster
Replies: 5
Views: 1396

Re: cannot get Link AtomX tach output to work with factory cluster

I'm interested to see how this works out. There are multiple writeups and videos showing how to modify and fit digital clusters into various old Toyotas, but not one of them identifies the required tacho input waveform. In fact most writeups kind of fizzle out due to problems in getting the dash to ...
by jondee86
Fri Feb 05, 2021 1:00 am
Forum: TECH: 4A-GE ENGINE
Topic: Headache and a Half -starting/rev cut
Replies: 13
Views: 2367

Re: Headache and a Half -starting/rev cut

I guess that a 16/20 4AGE is a 16V head on a 20V bottom end. In which case you will have obtained some increase in compression but otherwise the fuel and air requirements will not have changed much from the factory 16V setup. Thus if the OEM injectors were 210cc/min low-res then they would be your b...
by jondee86
Thu Feb 04, 2021 4:36 pm
Forum: TECH: 4A-GE ENGINE
Topic: Headache and a Half -starting/rev cut
Replies: 13
Views: 2367

Re: Headache and a Half -starting/rev cut

Good progress... one problem at a time is the way to go :) AE86 does not prime the pump when you turn the key ON. The pump does not turn ON until you turn the key to the crank position. If the engine is slow to start when cold you should check that your cold start injector is working. If you have be...
by jondee86
Thu Feb 04, 2021 1:02 pm
Forum: TECH: Corolla AE86
Topic: Odd heater behaviour
Replies: 9
Views: 2000

Re: Odd heater behaviour

I was meaning the heater hoses. A collapsed radiator hose would not make the heater run cold... more likely just the opposite. Some basic checks would be if you stop the car (but keep the engine running) after the heater starts blowing cold, does it return to blowing hot air without you touching or ...
by jondee86
Thu Feb 04, 2021 1:57 am
Forum: TECH: 4A-GE ENGINE
Topic: Headache and a Half -starting/rev cut
Replies: 13
Views: 2367

Re: Headache and a Half -starting/rev cut

Yeah... but I was actually referring to the skinny wires that take the pickup signals out of the distributor to the igniter or ECU. Should have described that better :) One of those wires sends the Ne signal and if the ECU does not get that signal for a few turns of the engine it will default to bas...