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the intake are next to the carb and the exhaust are next to the exhaust manafold intake are .008 exhaust are .012 with the engine warm good luck
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How do you repair a 1977 2WD 4 speed Toyota with 20r engine that has been misfiring and fuel temp gauge and 'charge' light have been turning on-off?
rebuild carburetor and put a anti back fireing system in it or put a timing chain kit in it. Anti back firing system?, lol, what a bunch of hooey. If your truck is misfiring, you may need new plugs, check the easy 1st, plugs, distributor, you may just need to time it. Timing chain would be a last thing to check. And is it back firing thru the carb or exhaust, if it's the carb you have timing issues.
1978 20R engine won't turn over it will crank but not start What could be wrong?
Always start with the basics. Do you have fuel? Is there some fuel in the carburettor? Do you have spark? Is it 'in time'?Start by checking for spark. Remove one spark plug and place back into the spark plug wire boot. Place the electrode on a good ground (basically, any clean metal spot on the engine) and try to keep it from moving. DO NOT HOLD THE SPARK PLUG OR WIRE! The voltage and amperage is definitely enough to kill you. Make sure you have placed the spark plug in a good visible location with not too much light so that you can easily view it from the car while you cranking the engine. Another person does help quite a bit. Crank the engine. Can you see a good blue spark? If you can, replace the plug and move on to fuel.After verifying there is fuel in the tank, check the carburettor. If you look down the body and open the throttle, do you see and smell gas? If so, move on to timing. If not, check the fuel pump and delivery system for problems.On the bottom engine pulley there is a series of marks and a single mark on the pulley (harmonic balancer) itself. If you can't see the single mark, turn the engine over by placing a large socket wrench on the harmonic balancer bolt and, turning clockwise, rotate the engine until the single mark is close to the 0 indicator on the timing plate. These are hard to see on older engines. Once these to marks line up, make not of the number one cylinder spark plug wire (the first cylinder up front) and carefully remove the distributor cap. If the rotor under the cap is pointing at the number one cylinder spark plug wire, you should be ok. If not, it's time for, well, new timing. Check the timing assembly for failed parts and replace.AnswerI forgot to install a power valve on my carb and this left a half inch hole in the metering block. This caused my engine to majorly flood. Fuel filled at least one cylinder and the engine become hydrolocked and the engine wouldn't turn over enough to notice-maybe one degree each time I turned the key. I burned up my starter and had to drain gas out of my oil pan. Even if you're not messing with power valves (they're not even an option on edelbrock carbs) a rich fuel mixture could allow excessive fuel to build up and pass through the cylinder rings and taint your oil so check your plugs for dampness or black conditions every so often.An increasingly noisy ticking sound coming from your engine could indicate a lifter malfunction. I once had an exhaust valve lifter 'mushroom' where the cam makes contact with the flat end and the lifter wouldn't move up & down smoothly. This kept the exhaust valve from letting out the unspent fuel through the exhaust and the fuel had only one place to go: pass the rings & into the oil.
Will a 22r head fit a 20r engine?
no it will not the pistons are diffrent the 20r has domw pistons and the 22re has flat top pistons
How do you fix blow by on a 20r Toyota?
run gear oil in your engine if your cheap cause a 20r engine remanufactured cost 600 dollars. or you could completey take the motor apart and replace the rings.
What vehicles take a fram ph3614?
1979 toyota 4x4 pickup with 20r engine
What is the point gap on a 1976 Toyota 20r engine?
0.18 or the thickness of a business card
What is the spark plug gap on a 1980 Toyota 20R engine?
.032" good luck
What are the torque specifictions for Toyota 20R crank bolts?
The Toyota 20R engine crankshaft bolt torque specification is 150 pounds. The crankshaft bolts should be torqued in 50 pound intervals.
Are there any diagrams for vacuum lines to 1978 Toyota 20r carb?
The Toyota 1978 20R Emission Control Repair Manual, pub 98268 is still available from Toyota parts, is about $12 and covers all versions of 1978 20R engine emission controls and vacuum lines. You have to have your dealer order it by part number.
1976 20r vacuum diagram?
I have never had luck finding one specifically for the 20R, but when I put my 20R back together, this was a great resource: http://www.bluebassdesign.com/boonin/carb_faq/ There are a few differences between the 22R and the 20R, but it should be close enough for you to get an idea.
How do you prime the oil pump on a 1991 Toyota V6 truck?
How do you prime the oil pump on a 1986 Toyota truck with 20r/22r engine
Where do you get a detailed vacuum hose diagram for a 1979 Toyota pickup with a 20R engine?
Follow the link and buy the bookhttp://www.themotorbookstore.com/toyota-pickup.html
Is it possible to run a Toyota 20R carbureted engine without the emissions with all the unnecessary vacuum lines plugged?
I would not recommend it unless you are mechanically advanced because certain vacuum lines are not emissions related such as the brake booster and distributor advance some lines control carburetor functions such as opening secondaries and pulling your choke open. Also, some emissions components will get stuck open causing problems. the EGR valve for one if stuck open will cause a rush of exhaust gas into your intake manifold and cause your engine to shut off or to idle roughly and emit plums of black smoke.
Need to find vacuum diagram for 1980 Toyota pick-up with 20R engine?
Go to auto Zone and get a Haynes manual and look in the emissions section for your year.
