As I know there is a vacume pipe from engine to carburetor, this vacume pipe is installed on top of engine cover to under carburetor (between carburetor and the inteke manifold).
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will need a micrometer, valve clearance adjustment tool set for shimmed lifters,small magnetic arm, appropriate shim selecting charts (manufacturer will have this if you can get the nec. measurements).
Measure thickness of shims removed (using micrometer) and use this formula where T=Thickness of old shim; A=Valve clearance measured; N=Thickness of new shim required.
Intake valves: N = T + (A - 0.02 mm (0.008 in.)) Exh. valves: N = T + (A - 0.25 mm (0.010 in.))
Then you need to find shims as close as possible to the calculated values.
Valve clearances (cold) are as follows: Intake0.15 - 0.25 mm (0.006 - 0.010 in.) Exhaust0.20 - 0.30 mm (0.008 - 0.012 in.)
Note, if you are not familiar with precision measuring using a micrometer, this may be better left to a trained tech. These are high revving little power plants and you don't want a problem at 8K rpm.
Computers have eliminated vacuum advance as a means of advancing timing. If your car has a computer, whether carbureted or not, the computer should control timing.
I have a 1993 isuzu pickup and because of the design of the carburator and the polution control there are so many vacum lines that without the air filter the vacum, is off just a tip I had lost my air filter cover and was having carburator problems I bought a new weber carburator came with its own air filter was able to plug up alot of the vacum lines runs alot better better gas mileage was only 270 on ebay if it's not running right check the vacum hose's hope that helps good luck
Just find a vacume hose that has vacume to it when you accelarate with car running pull a vacume hose off from carburator check by putting your finger or a vacume gage to it to see if you got vacume if not accelarate the carb by pushing accelarator (left side of carb driver side) if you have vacume when you accelarate you can use that vacume line
You do not need to connect the three vacume hoses to the EGR just find one that has vacume to it upon accelaration with the car running pull a vacume hose off the carburator with a vacume gage or your finger check to see if you got vacume if not accelarate carb if you do connect vacume line to EGR
on your discription,i would say someone has not replaced a vacum pipe under the bonnet,or placed the wrong vacum pipe on the wrong pipe if you know what i mean,the vacum pipes run around the engine small pipes if you pull one of you will hear a sucking noise or if you spit on your finger you should feel it ****.when you say it blew brake line what do you mean ,please tell me excatly what happened because this realy baffles me,please come back to me on this problem .adrian,,,,
try checking all vacum hoses with a water spray bottle .cable sticking try a graphite lubricant sprays liquid dries to a powdered lubricant .good for hot or cold tempeters.
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