Search found 196 matches

by davew7
Sun Jul 26, 2020 5:12 am
Forum: TECH: Corolla AE86
Topic: JDM RHD Brake Master + Clutch Master Cylinder Options
Replies: 3
Views: 160

Re: JDM RHD Brake Master + Clutch Master Cylinder Options

I deleted my booster, but used the stock M/C, by changing the pedal leverage. For a manual system you will need a pedal leverage in the 5 thru 7 to 1 range. It just requires you to move up the pivot point where the M/C push rod attaches to the foot pedal arm. You should also raise the M/C on the fir...
by davew7
Mon Jul 20, 2020 4:28 am
Forum: TECH: Corolla AE86
Topic: AE86 16v Alternator issue
Replies: 2
Views: 377

Re: AE86 16v Alternator issue

There should be a high amperage fuseable link in the circuit. Check the connections and verify that the link is good. On the USA models the fuseable link is located near the battery. davew7
by davew7
Sun Jul 19, 2020 3:47 am
Forum: TECH: 4A-GE ENGINE
Topic: Big port overheat problem
Replies: 7
Views: 457

Re: Big port overheat problem

With the fan belt off, if you turn the water pump by hand do you feel any resistance or play in the shaft? It does sound like the water pump. I would say you got your monies worth if it the original pump. Really not that bad of a job to replace. Just do not over tighten the belt when installing. Dav...
by davew7
Wed Apr 01, 2020 4:23 am
Forum: Fun Talk
Topic: Shock Dyno Data Anyone?
Replies: 7
Views: 3296

Re: Shock Dyno Data Anyone?

I would bet that the Hitachi Automotive Systems corporate office already has hundreds of benchmarking studies on file, for all major shock suppliers. See if they are willing to share the info. That would narrow the field for any additional testing. davew7
by davew7
Sat Mar 28, 2020 5:06 am
Forum: TECH: Corolla AE86
Topic: Do sticky tires rock chip our cars?
Replies: 4
Views: 618

Re: Do sticky tires rock chip our cars?

I believe that it is more tire and air temp related, then tire compound. Even with road tires on hot summer days they get sticky enough to through up a lot of stones. Davew7
by davew7
Wed Mar 25, 2020 2:43 am
Forum: TECH: 4A-GE ENGINE
Topic: 20V silvertop potential.
Replies: 6
Views: 1159

Re: 20V silvertop potential.

You are not going to gain much depending on the current diff ratio. My guess is that you will have to change to a lower diff ratio. You will probably need a 4.3 gear set, and I would also try to work in a lite Wt flywheel into your build plan. davew7
by davew7
Sun Dec 29, 2019 6:17 am
Forum: TECH: Corolla AE86
Topic: UPDATE! Gas coming out of fuel neck nozzle...
Replies: 25
Views: 5663

Re: UPDATE! Gas coming out of fuel neck nozzle...

notnilc20 " next project for the 86. I just have a bung at the top of the tank and have it vent to atmosphere?" As I mentioned, there is already a vent tube on the fuel pump mounting bracket. No bung needed. Just add a hose to the current vent tubing that makes an up-ward loop. Make the lo...
by davew7
Sat Dec 28, 2019 5:21 am
Forum: TECH: Corolla AE86
Topic: UPDATE! Gas coming out of fuel neck nozzle...
Replies: 25
Views: 5663

Re: UPDATE! Gas coming out of fuel neck nozzle...

I do not think that type of vent inside the filler neck would pass emissions in the USA even back in the late 80's. Some states [Calif] even required the gas pump nozzle to seal against the filler neck while filling the gas tank to prevent vapors from escaping. That type of system required capturing...
by davew7
Fri Dec 27, 2019 3:37 am
Forum: TECH: Corolla AE86
Topic: UPDATE! Gas coming out of fuel neck nozzle...
Replies: 25
Views: 5663

Re: UPDATE! Gas coming out of fuel neck nozzle...

The USA gas tank for an AE86 had to 2 vent tubes right above the main filler hose connection. There was also a vent tube on the fuel pump mount, along with the output and return tubes.
Davew7
by davew7
Mon Dec 23, 2019 3:40 am
Forum: OWNERS and BUILDERS
Topic: My Beam Swap 86
Replies: 4
Views: 2105

Re: My Beam Swap 86

Thanx for sharing your project. Looks like a fun build. davew7
by davew7
Wed Dec 11, 2019 4:38 am
Forum: TECH: 4A-GE ENGINE
Topic: Silvertop runs but loses power and shuts down
Replies: 4
Views: 1938

Re: Silvertop runs but loses power and shuts down

I think jondee86's idea that you have a fuel pump problems is the most likely. When the motor stops, try spraying quick start in the plastic vacuum connector on the manifold. If it runs for a second with the quick start, then you know it is a fuel issue. These fuel pumps have a limited life. davew7
by davew7
Mon Nov 11, 2019 4:05 am
Forum: Want to BUY (seeking sellers)
Topic: WTB: AE86 GTS Tranny Sandwich Plate
Replies: 1
Views: 1435

Re: WTB: AE86 GTS Tranny Sandwich Plate

The GTS 4AGE never came with a start under the intake. You my want to look at a 4A-C engine.
Davew7
by davew7
Mon Sep 16, 2019 4:00 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGE 16V Bluetop HIGH IDLE
Replies: 10
Views: 3566

Re: 4AGE 16V Bluetop HIGH IDLE

If you end up removing the valve for testing, then try cleaning the valve with carb/choke cleaner. Some times the valve gets gummed up, and the carb cleaner will free up the valve. As Jondee86 mentioned, verify you have water flow "to" and "from" the valve. If all else fails, you...
by davew7
Thu Aug 15, 2019 4:49 am
Forum: TECH: 4A-GE ENGINE
Topic: Bike carb conversion: Gas pedal travel issue
Replies: 4
Views: 2364

Re: Bike carb conversion: Gas pedal travel issue

Take totta crolla's idea one more step. Make the throttle pedal arm adjustable. I used the cable eye end from the stock pedal, and threaded it into a lower tube section. You can then thread the arm length up or down, to the vary the leverage i.e. travel. Once you get the correct length lock it down ...
by davew7
Sun Jul 07, 2019 4:02 am
Forum: TECH: 4A-GE ENGINE
Topic: Where does oil pressure come from ??
Replies: 11
Views: 2208

Re: Where does oil pressure come from ??

Thanx jondee86 The oil requirement chart is very enlightening relative to the amounts needed. I did not realize that the main bearing needed that high of a percentage when compared to the rod ends. The one thing you did not mention is the actual cooling of the bearings. Thinner viscosity oils will h...
by davew7
Mon May 27, 2019 3:21 am
Forum: Want to BUY (seeking sellers)
Topic: WTB AW11 U-joint (manual rack)
Replies: 4
Views: 1200

Re: WTB AW11 U-joint (manual rack)

There is a high probability that they have the right spline count in stock. They had a Toyota to English rack U-joint in stock that I needed. I got my U-joint from Sweet but both suppliers have excellent quality. Davew7
by davew7
Thu May 23, 2019 3:19 am
Forum: Want to BUY (seeking sellers)
Topic: WTB AW11 U-joint (manual rack)
Replies: 4
Views: 1200

Re: WTB AW11 U-joint (manual rack)

Try Flaming River or Sweet Mfg. Half the cost of Toyota and it will not rust. You just need Dia. and spline count. Davew7
by davew7
Fri May 17, 2019 4:05 am
Forum: TECH: Corolla AE86
Topic: Crank no start after warmed up
Replies: 4
Views: 1574

Re: Crank no start after warmed up

Does the engine just stops while warming up, and then difficult to start? You need to narrow down the problem to either fuel supply or injector signal. Try spraying Quick Start thru the FPR vacuum port to see if it will start right after warm up/stop. You can also try jumping the electrical fuel pum...
by davew7
Mon May 13, 2019 3:43 am
Forum: TECH: 4A-GE ENGINE
Topic: Rough edges around combustion chambers
Replies: 13
Views: 2895

Re: Rough edges around combustion chambers

To clean the combustion chamber, just go to the local Ace hardware and buy a 1" Dia. wire bush, made from (((.009" wire))) set in a cap with a 1/4" shaft. The fine wire can clean the surface, without leaving marks in the aluminum when using a die grinder or drill motor. The only place...
by davew7
Sun May 12, 2019 3:58 am
Forum: TECH: Corolla AE86
Topic: Front suspension question
Replies: 10
Views: 2808

Re: Front suspension question

J565c-4.17 Mounting height- The center of the device lens shall be mounted no less the 24 in. (610mm) above the road surface. But there has to be a lot of vehicles on the road with lites lower then 24". My guess, there is not to many states actually look at enforcement? When my vehicle was insp...
by davew7
Sat May 11, 2019 4:14 am
Forum: TECH: 4A-GE ENGINE
Topic: Rough edges around combustion chambers
Replies: 13
Views: 2895

Re: Rough edges around combustion chambers

Search Cometic gaskets. They have several thinner or thicker MLS head gaskets for the 4AGE. If you want to use a Dremel tool to de-burr, use one of the small sanding drums. Or just use sand paper to knock off the burrs. Less chance of screwing up the head surface. You just need to do a really good j...
by davew7
Mon Apr 01, 2019 4:05 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 108
Views: 25113

Re: 4AGZE Injectors Not Firing

The grounding location on the intake manifold is common for all 4 of the injectors. If its a good ground for 2 injectors, it should be OK for the other 2 injectors. It is must likely a bad plug pin or wire. You are going to have to check each wire run to find the problem.
Davew7
by davew7
Sun Mar 31, 2019 3:59 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 108
Views: 25113

Re: 4AGZE Injectors Not Firing

The odds are low, but the problem could actually be the crimp in jondee86's photo or pin/plug connectors. I had increase resistance at a brass crimp where several sensor wires tee'd into a common ground wire. That is why I commented on solidering these 30 year wire joints. You have to check every wi...
by davew7
Sat Mar 30, 2019 3:44 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 108
Views: 25113

Re: 4AGZE Injectors Not Firing

Since you have the red-black wire striped back to the tee connection, Use a VOM [preferred] or continuity lite with a long test lead and verify that the red wire with the black trace, that runs to the ECU plug is good. There could be a break or enough resistance to screw up the engine ECU. You may w...
by davew7
Mon Feb 25, 2019 4:02 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE Injectors Not Firing
Replies: 108
Views: 25113

Re: 4AGZE Injectors Not Firing

The electrical signal to the injector is so short that most VOMs will not register the signal. Go to you local auto parts and ask for a noid light. They are only a few bucks, and will verify the injector signal. davew7
by davew7
Wed Feb 13, 2019 4:27 am
Forum: TECH: 4A-GE ENGINE
Topic: 4AGZE N/A conversion/differences between 4AGE and 4AGZE
Replies: 11
Views: 4788

Re: 4AGZE N/A conversion/differences between 4AGE and 4AGZE

Your plan sounds like a reasonable build. The only thing not mentioned was your ignition system. You will need a stand alone ignition system that will handle higher revs then a stock big port ECU. You will just need a few $$$ for your budget. davew7
by davew7
Fri Sep 07, 2018 4:35 am
Forum: TECH: Corolla AE86
Topic: Hesitation at low rpms
Replies: 8
Views: 2600

Re: Hesitation at low rpms

The TPS is a good possibility, but it would not explain the difference you see between a hot and cold engine. The cold engine needs more fuel, i.e. the green sensor, tells the ECU that more fuel is needed but the fuel pressure is not there to deliver it. DaveW7
by davew7
Thu Sep 06, 2018 3:54 am
Forum: TECH: Corolla AE86
Topic: Hesitation at low rpms
Replies: 8
Views: 2600

Re: Hesitation at low rpms

You need a richer mixture at throttle tip in. That 30+ year old fuel pump does not have enough pressure to enrich the mixture enough. Pull the fuel line at the filter and verify "deadhead" the line into a pressure gauge. You need a PSI reading in the mid 40's to get a regulated PSI in the ...
by davew7
Sat Aug 18, 2018 6:55 am
Forum: TECH: 4A-GE ENGINE
Topic: 4age engine brackets
Replies: 7
Views: 2388

Re: 4age engine brackets

Try searching 4A-GE dimensions by Rick Hargraves
He has detailed prints for fabricating both RH and LH engine mounts. http://www.webgate.net/~rbp/4age.html
DaveW7
by davew7
Fri Aug 10, 2018 5:09 pm
Forum: TECH: 4A-GE ENGINE
Topic: Distributor Pickup Coil Question
Replies: 9
Views: 3076

Re: Distributor Pickup Coil Question

Rick
Thanx for the info, Dave

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