Search found 197 matches

by davew7
Fri Nov 04, 2016 4:42 am
Forum: TECH: 4A-GE ENGINE
Topic: 4A-GE 16v Rear Freeze Plug Info
Replies: 7
Views: 3439

Re: 4A-GE 16v Rear Freeze Plug Info

Since you have gone this far, even if you do not see any coolant, I would clean around the freeze plug and then use 2 part epoxy to add a safety factor for a good seal. It might only weep coolant when hot. Dave W
by davew7
Fri Oct 28, 2016 5:24 am
Forum: TECH: 4A-GE ENGINE
Topic: 4A-GE 16v Rear Freeze Plug Info
Replies: 7
Views: 3439

Re: 4A-GE 16v Rear Freeze Plug Info

Before you jump into replacing a freeze plug [a real pain] Also check the steel coolant tubes with a mirror and a lite. I though I had a leaking freeze plug, when in fact it was a small pin hole rusted thru the coolant tube. Much easier to fit then a plug. Dave W
by davew7
Wed Oct 26, 2016 6:01 am
Forum: TECH: Corolla AE86
Topic: rear-end shudder/shake at low RPM
Replies: 7
Views: 2592

Re: rear-end shudder/shake at low RPM

Search for radco, Radcoent/Uniiversal, for a replacement stake-in type U-joint for the AE86 drive shaft. This info is about 10 years old, So hopefully they still carry them. I was able to grind out the staking, replace the joint and just restake [after carefully centering the joint in the yoke]. Dav...
by davew7
Thu Oct 20, 2016 4:51 am
Forum: OWNERS and BUILDERS
Topic: Gonna start a build and see where it goes ===> TWINSCREW !!! :-p
Replies: 225
Views: 97374

Re: Gonna start a build and see where it goes :-P

I've always had good luck when installing the cam seals, if I remove the front cam bearing cap , then side the seal on the shaft. That way you can verify that the seal is straight to both the shaft and head plus you can tell that the spring and lip are OK, before you re-install and troque down the c...
by davew7
Mon Oct 17, 2016 5:06 am
Forum: TECH: Corolla AE86
Topic: Brake pedal is not firm.
Replies: 12
Views: 3238

Re: Brake pedal is not firm.

I've had real good luck using a vacuum pump to bleed the brakes. You might also try jacking up the rear if there is a high loop in the rear brake line. After the conversion is the bleed valve the highest point of the caliper? Dave W
by davew7
Tue Oct 11, 2016 5:40 am
Forum: TECH: 4A-GE ENGINE
Topic: smaller alternator options?
Replies: 2
Views: 1147

Re: smaller alternator options?

Doug Disclaimer, I have not used these alternators, these alternators are just from my notes and would need further investigation. In all probability you are going have to make new mounting brackets to align correctly. I think the only direct fit alternator is from the early 4A motors [which I'm usi...
by davew7
Thu Sep 01, 2016 5:14 am
Forum: TECH: 4A-GE ENGINE
Topic: hi compression 4age16v losing compression
Replies: 25
Views: 5750

Re: hi compression 4age16v losing compression

A quick check if you have an air compressor, is to apply air pressure to the cylinder(s) and listen to the intake, exhaust and crankcase for leaking air. Should help narrow down the problem. Dave W
by davew7
Mon Aug 29, 2016 5:40 am
Forum: TECH: Corolla AE86
Topic: Gts driveshaft slip yoke opinions
Replies: 4
Views: 1679

Re: Gts driveshaft slip yoke opinions

I paid $250 for my drive shaft. All new parts. No shipping charges, local shop, but it seems that shipping over size parts also get $ plus, plus mark ups. Dave W
by davew7
Sun Aug 28, 2016 5:27 am
Forum: TECH: Corolla AE86
Topic: Gts driveshaft slip yoke opinions
Replies: 4
Views: 1679

Re: Gts driveshaft slip yoke opinions

You are asking a lot from the tail shaft seal with that rough of a surface to seal against. Even if it would seal it, the seal probably would not last very long running on that surface. If you are getting a custom length drive shaft made, the drive shaft company should be able to get a new yoke in l...
by davew7
Sat Aug 06, 2016 4:20 am
Forum: TECH: Corolla AE86
Topic: Replacement Washers on Headers
Replies: 3
Views: 1297

Re: Replacement Washers on Headers

Depending on how rough the surface is on the exhaust manifold, you met get better results using either an aluminum or brass washer from the local hardware store [will probably have to open up the I.D.] Plus adding a little permatex should solve the problem. Dave W
by davew7
Mon Aug 01, 2016 4:50 am
Forum: TECH: Corolla AE86
Topic: 4A-C engine Torque Specs
Replies: 1
Views: 896

Re: 4A-C engine Torque Specs

The cylinder head / rock arm bolts are 62-68 ft/lbs. Typical start in the center of the head and work outboard in two or three steps. Dave W7
by davew7
Mon Jul 11, 2016 6:04 am
Forum: TECH: Corolla AE86
Topic: Brake booster delete
Replies: 19
Views: 11285

Re: Brake booster delete

If you remove the booster you really need to change the brake pedal lever ratio. The stock pedal ratio is about 3.8 to 1 [boosted]. You need to relocate the master cylinder up slightly and drill a new hole for the push rod that will give you a lever ratio of 5 to 1. You will be much happier with the...
by davew7
Thu Jun 30, 2016 4:07 am
Forum: TECH: Corolla AE86
Topic: Bump steer after aw11 manual rack conversion
Replies: 21
Views: 13445

Re: Bump steer after aw11 manual rack conversion

If you are "sure" that the inner tie rod pivots for LH/RH are equal distance, [not clamped in AW-11 factory location] then you will have to adjust the elevation at each pivot point to get ends of the tie rods traveling thru the same arc. Get a suspension handling book that shows how to mak...
by davew7
Mon Jun 27, 2016 4:23 am
Forum: TECH: Corolla AE86
Topic: Reverse lights sensor located on trans.
Replies: 4
Views: 1930

Re: Reverse lights sensor located on trans.

All you need to do is connect the multi-meter across the to pins on the switch [with the meter on ohm setting and zero'd] and then put the trans in reverse to verify a completed circuit. You could also used a battery powered test lamp. Dave W
by davew7
Wed Jun 22, 2016 4:39 am
Forum: TECH: Corolla AE86
Topic: Oil cooler woes
Replies: 4
Views: 1711

Re: Oil cooler woes

You can try heating the copper sealing rings with a torch and quenching it in water to soften the sealing surface and add a small amount of gasket sealer around the rings. You can fill a tap with grease [to catch the chips] and run it into the hose attachment boss to clear out the threads. But the o...
by davew7
Sat May 21, 2016 4:47 am
Forum: TECH: Corolla AE86
Topic: .Single piece driveshaft advice needed.
Replies: 2
Views: 1197

Re: .Single piece driveshaft advice needed.

It's been a few years, but I think you can still get replacement stake in u-joints for the AE86 drive shaft @ RADCO, try searching radcoent/universal. It requires grinding out the staking to remove the joint and re-staking after assembly. Dave W
by davew7
Thu May 19, 2016 5:15 am
Forum: TECH: 4A-GE ENGINE
Topic: TechnoToyTuning Water Pump Pulley Issue (16v)
Replies: 2
Views: 1113

Re: TechnoToyTuning Water Pump Pulley Issue (16v)

Just double nut the studs and remove them. Then install longer bolts.
You may have the wrong pulley????
Dave W7
by davew7
Fri Apr 15, 2016 4:45 am
Forum: TECH: 4A-GE ENGINE
Topic: Hiding Ignition Leads
Replies: 8
Views: 2012

Re: Hiding Ignition Leads

Jondee
Thanx for the replay. I thought it may have required re-sizing the photo. DaveW
by davew7
Thu Apr 14, 2016 5:39 am
Forum: TECH: 4A-GE ENGINE
Topic: Hiding Ignition Leads
Replies: 8
Views: 2012

Re: Hiding Ignition Leads

I've tried adding two photos, but I get "attachment quota reached" and it's only 220KB?
Any suggestions.
Dave W7
by davew7
Wed Apr 13, 2016 5:24 am
Forum: TECH: 4A-GE ENGINE
Topic: Hiding Ignition Leads
Replies: 8
Views: 2012

Re: Hiding Ignition Leads

I made a new solid plug valley cover, and routed the wires thru the front between the cam gears. You would also have to fab wire guides. It would probably take 5 or 6 hours to fabricate. If interested send me a PM and I can shot you a couple photos. Dave W
by davew7
Tue Apr 05, 2016 5:59 am
Forum: TECH: Corolla AE86
Topic: backside of waterpump tube
Replies: 6
Views: 1887

Re: backside of waterpump tube

I honestly do not know! The first 4AGE that I rebuilt about 13 yrs ago showed signs of leaking at the o-ring. Who knows how old the O-rings where. Cheap insurance to add a little RTV to the joint [plus O-rings]. I've incorporated the RTV in the last 3 rebuilds. The way I look at it, It's easier to t...
by davew7
Sun Apr 03, 2016 5:39 am
Forum: TECH: Corolla AE86
Topic: backside of waterpump tube
Replies: 6
Views: 1887

Re: backside of waterpump tube

You need the tube to circulate the coolant before the thermostat fully opens. There should be an O-ring on both ends of the tube. Replace the O-rings and then coat both ends with RTV just before installing the head. Dave W
by davew7
Sun Mar 27, 2016 8:44 am
Forum: TECH: 4A-GE ENGINE
Topic: renamed: crazy oil leak from Valve Cover?
Replies: 30
Views: 8028

Re: Valve Stem Seals, I think?

Sounds like the PCV. A 10 second check. Pull the hose off the intake & cap the manifold fitting . Drive it.
Dave W
by davew7
Sat Mar 05, 2016 4:59 am
Forum: TECH: Corolla AE86
Topic: manual steering rack question
Replies: 8
Views: 3097

Re: manual steering rack question

The actual loads from steering inputs into either a manual or PS rack are insufficient compared to side impact loads that the suspension engineer has to take into consideration when design a rack. Dave W
by davew7
Sun Feb 28, 2016 6:10 am
Forum: TECH: Corolla AE86
Topic: Starter Bolts
Replies: 8
Views: 2412

Re: Starter Bolts

The length from the under side of the hex head is 45mm. Dave
by davew7
Sun Feb 14, 2016 5:38 am
Forum: OWNERS and BUILDERS
Topic: notnilc20's 1986 ae86 Hatch build/restoration
Replies: 173
Views: 59625

Re: notnilc20's 1986 ae86 Hatch build clean-up

If you do not have an inspection requirement then the engine will run OK without the EGR and most of the other emission controls. Your will need the O2 sensor, it's missing on the exhaust manifold. You will need a replacement or a resistor in the circuit to send the correct voltage to the ECU. You a...
by davew7
Wed Feb 10, 2016 5:03 am
Forum: TECH: 4A-GE ENGINE
Topic: TVIS & Bigger Cams
Replies: 21
Views: 5334

Re: TVIS & Bigger Cams

I'm running almost the same set-up with the stock ECU. Slightly less lift, CR, and no TVIS. Try advancing the intake 3*. If you are willing to break into the engine, a thinner head gasket would also help. Dave W
by davew7
Mon Jan 04, 2016 5:34 am
Forum: TECH: Corolla AE86
Topic: gts fuel wire gauge
Replies: 2
Views: 999

Re: gts fuel wire gauge

You should be OK with 16 gauge wire, if the run is longer the 15' use 14 gauge. Dave W7
by davew7
Tue Dec 29, 2015 5:58 am
Forum: TECH: Corolla AE86
Topic: How did you improve your fuel economy on a 4ac?
Replies: 9
Views: 2561

Re: How did you improve your fuel economy on a 4ac?

If you go to the AEU86 forum, and search exhaust "a post probably 5 or 6 years old" there was a member that did an A-B comparsion dyno pull, and posted the documents that showed a switch to a 20V stock header on a big port. There was a 5 HP improvement with just the header switch and an ad...
by davew7
Mon Dec 28, 2015 5:03 am
Forum: TECH: Corolla AE86
Topic: How did you improve your fuel economy on a 4ac?
Replies: 9
Views: 2561

Re: How did you improve your fuel economy on a 4ac?

About the only easy change is the exhaust system. Look at headers and low restriction pipes and muffler. A better exhaust will reduce pumping losts. If the exhaust is custom, get anti-revrsion in the primary header tubes. You will probably have to adjust timing because of the improved scavenging. Da...

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