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The torque specifications for the flywheel and clutch on an Opel Astra 1.4L 2012 with the A14XER engine are as follows:
Flywheel bolts:
Stage 1: Tighten to 20 Nm (15 lb-ft)
Stage 2: Tighten an additional 70 degrees (or 2/3 turn)
Clutch pressure plate bolts:
Tighten to 22 Nm (16 lb-ft)
It is important to use a torque wrench to ensure that the bolts are tightened to the correct specification, as over-tightening or under-tightening can cause damage to the components and affect the performance of the vehicle. Additionally, it is recommended to use new bolts when installing the flywheel and clutch to ensure proper torque and avoid any potential issues caused by worn or damaged bolts.
Without the make, model, year... and the reliability of your torque wrench... I'd rather discuss the difficulties involved in reverse drilling and EXTRACTING broken bolts..
Why in the world would I be looking at such a question without a spec of detail(s) on the surrounding vehicle??
Try buying detailed specifications on bolts, grades of steal, micrometers... high end torque wrenches, etc.
Better avenue... repost with the vehicle details... we can give it a serious effort.
you need first wipe clean fly wheel and pressure plate machined surface clean then you need to install position clutch disc and pressure plate with clutch held in place with alignment tool. tighten pressure plate to flywheel bolts only finger tight.working around pressure plate.center the clutch disc by ensuring the alignment tool is through the splined hub and into the recess in the crankshaft.wiggle tool up down or side to side as needed to bottom tool.tighten the pressure plate to flywheel bolts a little at a time working in a crisscross pattern to prevent distortion of the cover.after all bolts snug tight tighten then torque bolts 30 ft lbs for V8 if engine V6 torque bolts 15 ft lbs.be sure to use high temperature grease on release bearing inner groove place grease on transaxle input shaft bearing retainer.
did you use a pilot spline to align the clutch and did you change the pilot bearing in the end of the crank. The clutch plate maybe interfering with the pressure plate if it is not lined up.
it sounds like the throw out bearing might be riding on the pressure plate at all times it should only engage the pp when the clutch peddle is pressed hope this will help
please spend $25 and get a mechanics manual for your vehicle there are far too many things to explain.. the $5 answer would be:
1. remove trans from engine
2. unbolt pressure plate incrermentally and evenly as not to distort pressure plate
3. check flywheel for run-out, end-play, scoring and burnishing on flywheel/pressure plate, turn,re-surface/replace if req'd
4. install new pilot bearing clutch disc using special alignment tool and torque all bolts to factory spec and procedure , some recomend new bolts
5.reassemble in reverse order
First you go to mechanics school so you know the basics on safety etc.
Now you can block the car up in the air and remove the driveline and all electrical and mechanical connections from the transmission. Next support the engine while you unbolt the transmission from the engine. using your transmission jack slide the transmission back far enough to get easy access to the pressure plate. remove the bolts holding the pressure plate in place and remove the old clutch. Of course you got a new clutch, pressure plate and throwout bearing right? you may need a pocket bearing for the tip of the transmission input shaft as well. installing is the reverse of removing though you will have to consult the manual for torque specifications and you will need to make sure the clutch is centered before you bolt the pressure plate back down.
OR you could take it to a transmission shop and have them do it for a couple hundred bucks.,
Lift clutch pedal to uppermost position to disengage clutch and brake pedal pivot shaft.
Push clutch and brake pedal pivot shaft forward and unhook clutch release lever cable from clutch and brake pedal pivot shaft and allow it to slowly swing rearward.
Raise and support vehicle.
Remove clutch release lever dust shield.
Disconnect clutch release lever cable from clutch release shaft.
Remove retaining clip, then clutch release lever cable from flywheel housing.
Remove starter motor from flywheel housing, then engine rear plate to front lower flywheel housing bolts.
Remove transmission.
Remove flywheel housing back just far enough to clear clutch pressure plate, then remove housing.
Remove clutch release shaft from flywheel housing by pulling it through window in flywheel housing until retainer spring disengages from pivot.
Remove clutch release hub and bearing from clutch release shaft.
Loosen six clutch pressure plate bolts evenly to release spring tension gradually and avoid distorting clutch pressure plate. If same clutch pressure plate is to be installed, mark plate and flywheel so pressure plate can be installed in its original position.
Remove clutch pressure plate and clutch disc from flywheel.
INSTALLATION:
Position clutch disc and pressure plate assembly on flywheel, noting following:
Three flywheel housing to block dowels on flywheel must be properly aligned with clutch pressure plate.
Bent, damaged or missing flywheel housing to block dowels must be replaced.
tart clutch pressure plate bolts but do not tighten.
Avoid touching clutch disc face, dropping parts or contaminating parts with oil or grease.
Align clutch disc using suitable alignment tool inserted in pilot bearing.
To avoid clutch pressure plate distortion, alternately tighten bolts a few turns at a time, until they are all tight, then tighten to specifications.
Install transmission to flywheel housing.
Install engine rear plate to flywheel front lower housing bolts, then connect clutch release cable to flywheel housing and connect retaining clip.
Connect clutch release lever cable to clutch release shaft, then install clutch release lever dust shield.
Install starter motor.
Lower vehicle, then install clutch release lever cable as follows:
Lift clutch pedal to disengage clutch and brake pedal pivot shaft.
Push clutch and brake pedal pivot shaft forward and hook end of clutch release lever cable over rear of clutch and brake pedal pivot shaft.
Cycle clutch pedal several times to adjust clutch release lever cable
Remove drive shaft,remove crossmember under transmission.Remove transmission and diconnect linkage.Remove bell housing,and clutch berring assembely.Remove bolts on pressure plate.Once this is done.Remove fly wheel for machineing.you will need a pilot shaft to alighn clutch assemblely.Possible one will come with new clutch and pressure plate.Reverse assemblely in same order remember to torque all your bolts with torque wrench.Take your time.
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