SKA80R Posted April 13, 2008 Report Posted April 13, 2008 I can't seem to find any pdf's on the AE71 corolla workshop manual? Can any one steer me in the right direction Quote
Golberg Posted April 15, 2008 Report Posted April 15, 2008 To be honest, I'd doubt if there were any on the net anywhere. Most people don't care about 4AC's obviously because 4AGE's are often such an easy conversion into a car which already has a 4AC and they have much more potential. But you probably already know all this. I've seen a couple of engine manuals for 4AC's go through ebay but thats about all. I should be getting a Chassis manual for the E7 series of corollas soon which covers just about everything but the engine hence though it probably wouldn't help. Quote
n0ve Posted April 17, 2008 Report Posted April 17, 2008 ive got a ae82 sedan with a 4ac and i was under the impression that you couldnt tune the carby as its 'sealed'? is that right? can anyone clarify? Quote
4ages Posted April 17, 2008 Report Posted April 17, 2008 ive got a ae82 sedan with a 4ac and i was under the impression that you couldnt tune the carby as its 'sealed'?is that right? can anyone clarify? That is correct, but in this case I believe the carbs a slightly different.. Quote
tas_ae71 Posted April 18, 2008 Report Posted April 18, 2008 I'm not sure about tuning the std carb, if it is tune able then a manual wont really help. any other engine specs can be found on the underside of the bonnet and in an owners manual. in owners manual, it says the recommended oil for motor, box and diff. ignition timing, spark plug model, gap, thermostat temperature etc. filters can be looked up instore. what exactly do you want to know?? if there are other parts of the car that need attention that arnt listed in a owners manual give us a yell because someone has surely fix/repaired what ever your having trouble with. Quote
toyofancy Posted April 26, 2008 Report Posted April 26, 2008 (edited) I do have an old, Toyota Engine Repair Manual covering 2A, 4A 4AC and 4A-GE (spare which has been superseeded) What info do You need? And yes AE71 Carburetted are tuneable.. Takes a bit of fiddling, without information. I run my 1983 van on 19.1Km/l or 5.3L/100K (and use 95 octane). Been running like this for 2.5 years. No problems at all, no power loss or pinging or other problems. (This was a Longitudinal engine designed for 97 octane) Even had it running at 91E octane, but this was a bit rougher and not recommendable. Why spend money on engine change for an old car, if you can improve the fuel economy, by proper tuning? This car has more guts and has equal fuel economy as my daughters Excell. :yes: cheers Johnno. Edited April 28, 2008 by toyofancy Quote
Budowski Posted May 2, 2008 Report Posted May 2, 2008 I do have an old, Toyota Engine Repair Manual covering 2A, 4A 4AC and 4A-GE (spare which has been superseeded)What info do You need? And yes AE71 Carburetted are tuneable.. Takes a bit of fiddling, without information. I run my 1983 van on 19.1Km/l or 5.3L/100K (and use 95 octane). Been running like this for 2.5 years. No problems at all, no power loss or pinging or other problems. (This was a Longitudinal engine designed for 97 octane) Even had it running at 91E octane, but this was a bit rougher and not recommendable. Why spend money on engine change for an old car, if you can improve the fuel economy, by proper tuning? This car has more guts and has equal fuel economy as my daughters Excell. :cool: cheers Johnno. hey i need some information what is the point gap on a 4ac ae71 and standard ignition timing in degrees and plug gap Quote
toyofancy Posted May 6, 2008 Report Posted May 6, 2008 Owners Manual states: 4AC engine Australia uses 97 octane and 4AGE engine uses 98 octane. Just incidental information for you. The Service specs are: Ignition timing 4A & 4AC engine; 5 deg btdc @ (MAX 900 rpm auto). Distributor rubbing block gap; 0.45 mm (0.018") Dwell angle; 52 degrees. Spark plug gap 0.8 mm(0.031") NGK; BP5EY or N12YC. points GD214 Engine O'haul Manual & experience says for Nippondenso maggie: dwell between 46 and 58 (52) degrees. rubbing block gap 50 deg=(0.011") & 48deg=(0.012"). Timing set 3-7 deg BTDCat idle speed of 750rpm. And set the damping-spring gap to 0.1 to 0.4 mm (0.004 to 0.016"). with vacuum advance connected to the ported pipe on the carby. Hope that will give some info? Jonno Quote
Budowski Posted May 6, 2008 Report Posted May 6, 2008 Owners Manual states: 4AC engine Australia uses 97 octane and 4AGE engine uses 98 octane. Just incidental information for you.The Service specs are: Ignition timing 4A & 4AC engine; 5 deg btdc @ (MAX 900 rpm auto). Distributor rubbing block gap; 0.45 mm (0.018") Dwell angle; 52 degrees. Spark plug gap 0.8 mm(0.031") NGK; BP5EY or N12YC. points GD214 Engine O'haul Manual & experience says for Nippondenso maggie: dwell between 46 and 58 (52) degrees. rubbing block gap 50 deg=(0.011") & 48deg=(0.012"). Timing set 3-7 deg BTDCat idle speed of 750rpm. And set the damping-spring gap to 0.1 to 0.4 mm (0.004 to 0.016"). with vacuum advance connected to the ported pipe on the carby. Hope that will give some info? Jonno cheers very helpful Quote
GasedT18 Posted August 6, 2008 Report Posted August 6, 2008 (edited) cheers very helpful Yes, thanks all and me too. By way of intro, names Dave and recently picked up an AE71(auto) while I restore my T-18 that will also be getting a transplant. I'm getting stutter and even stalls on standing starts. I thought it was the Auxiliary Acceleration Pump but it's not. Have put it down to choke not opening properly (too slow) plus the carby running too rich but there could be a dizzy issue as well. I'm progressively leaning it out (and there's definite improvement) but may have reached the limit (I'll know more when I find a hill and warmer weather) as it may just be starting to ping, not 100% sure. Anyway it could be a vacuum advance issue (found 1 leak so far) but I'm having a lot of difficulty because I can't find an accurate vacuum system diagram - i.e., the one on the sticker under the bonnet or in the service manual. So if anyone could please take a photo of an Aust spec AE71 bonnet sticker (mines missing) or could post/email a page or two from the Toyota Service Manual I would really appreciate it - vacuum systems are a headache without the diagram (no I'm not going to disable the pollution control so don't suggest it please). I've looked for Haynes/Gregorys manuals but they don't have one specific for the AE71. Cheers David PS If anyone in Sydney has a AE71 Toyota Service Manual and/or a service manual for the transmission for sale or loan I'm keen to buy or copy (as the original poster stated there aren't copies on the net) - I like service manuals. Edited August 6, 2008 by GasedT18 Quote
toyofancy Posted August 11, 2008 Report Posted August 11, 2008 A very good and helpfull website, which gives you online maint manuals for any type or model, is (www.autozone/repair info/ vehicle repair guide) and if you then select /Fuelsystem, you will find the Aisan carburettor as used on the 4ac engine. This is of course, as long as you select initially your proper car model (Corolla 83, 1.6L 2B) :dance: This covers all your tuning and with the section on ignition (Vacuum advance) and exhaust (for EGR) you should be able to sort vacuum hoses out. :dance: Read the legends under the carby pictures carefully, as they tell you where the hoses go! Have fun :dance: Quote
toyofancy Posted August 11, 2008 Report Posted August 11, 2008 (edited) While I'm thinking of the manuals, I never had very much problems with the 4ac. Only real problems I ever had were, a clogged-up EGR (completely gummed-up) and a leaking diaphragm on the carby (secondary throttle diaphragm), NOT the AAP! and the bi-metal spring on the hot-airdoor broke. The original distributor (ND) had a advance timing baseplate, which does jamm if not maintained regularly, (see FAQ ignition this forum) All these problems individually caused spluttering and rough running. So maybe this give you something to look at. Manual TX?The transmissions on a AE71 is covered in the Toyota manual "T18 Repair Manual" KE7*, TE7* Mine covers K40, K50, T40, T50 Edited August 11, 2008 by toyofancy Quote
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