O3
Oil check valve - 944 turbo engine Part No. 951 104 229 00 Identifying feature 0 2.5 mm bore. Predrill valve approx. 5 mm deep using a 0 4.8 - 5 mm drill, then cut thread with a commercially available M 6 threaded blind hole drill. Coat drill with grease. Extract valve using an M 6 bolt and a spacer sleeve. Oil check valve - 944 engine Part No. 928.104.131.00 Identifying feature 0 8 mm bore. Cut thread using M 10 threaded blind hole drill. Turn out valve using an M 10 bolt and a spacer sleeve....
Adjusting camshaft belt with mechanical belt tensioner
Model 87 onward Engine type 44.40 41 05-12 The belt must only be checked and adjusted when the engine is cold room temperature . 2. The TDC marking on the flywheel must also be in line. 1. Turn crankshaft slowly clockwise until TDC marking cylinder 1 on the camshaft drive wheel is level with the marking on the rear belt cover. While turning, check belt for wear and damage. Adjusting camshaft belt with mechanical belt tensioner 4. Check mobility of the tensioning roller lever with thumb pressure...
Crankcase identification engine number
The engine number is embossed onto the rear left of the crankcase in the direction of travel. As from Model 88, on the right-hand rear engine side. Crankcase identification - engine number Stud M 6 x 16 reference mark sensor Clean sealing surface and remove grease in area of oil intake and flywheel. Seal with Loctite 574 Clean sealing surface and remove grease in area of oil intake and flywheel DISASSEMBLING AND ASSEMBLING CRANKCASE AND CRANKSHAFT SINCE 1985 2 MODELS The closed main bearing...
Info Mcn
If there is no change in the CO level, check connection to DEE control unit term. 24 green and if necessary, replace control unit. 4.The voltage should lie in the range from 0.1 V to 1.0 V depending on oxygen content in exhaust . Lambda sensor voltage characteristic for working temperature of 600 C. 28 - 38 Testing DEE Control Unit Testing Lambda Sensor REMOVING AND INSTALLING DEE CONTROL UNIT IN MODELS AS OF 85 2 l.Fold back mat in passenger's 3.Unlock and pull out side footwell. Unscrew and...
Info Oiy
The fuel pump can be run by connecting battery on terminal 4 of the 9-pin plug. Alternator, regulator Intake system leaks Temperature sensor II engine temperature Fuel pressure Air flow sensor Ignition system Reference mark transm. Power supply for control unit fuel pump Ground connections, plug connections The test points should be performed in the given sequence, especially when the customer complaint concerns an engine which cannot be started or is hard to start. 3. Check plug connections...
Equipment table
As from model 89 Engine type M 44 11 12 2.7 I 944.608.102.06 Bosch No. 0580.464.042 928.110.253.00 Purolator No. 506.883.901.5 944.110.201.04 Bosch No. 0280.161.036 944.110.198.06 Bosch No. 0280.160.287 944.606.121.01 Bosch No. 0280.202.064 944.606.125.00 Bosch No. 0280.130.026 944.606.113.01 Bosch No. 0280.120.308 930.606.161.00 Bosch No. 0280.140.501 Electric injection valve DME control unit 944.606.114.00 Bosch No. 0280.150.824 944.618.121.06 Bosch No. 0261.200.089 CHECKING TIGHTNESS OF...
Machining Cylinder Head
1. Clean and inspect cylinder head. Cylinder heads, the valve seats or sealing surfaces of which can no longer be machined, are not suitable for replacement of valve guides. 2. Grind off enough of valve guides protruding from the camshaft end with a spot facer that guides are flush with the cylinder head. Be careful not to damage guide collar for spring retainers. 4. Loosen valve guides from the camshaft end with Special Tool 9224 by applying brief knocks and press out rest of guides toward...
Assembly note
Whenever performing repairs on the engine, make sure the seal is replaced. '85 MODELS ONWARD ENGINE TYPE M 44.05 06 07 08 TORQUING PROCEDURE, CRANKCASE UPPER HALF - COMPENSATING-SHAFT COVER When aligning crankcase upper half and compensating-shaft cover, proceed as follows 2.Install bearing housing with 0-ring lightly oiled but without mounting bolts. 3.Tightening torque for M6 bolts 10 Nm 7 ftlb Tightening torque for M8 bolts in 2 stages. 1st stage 15 Nm 11 ftlb 2nd stage 20 Nm 14 ftlb...
Polyrib drive belt for alternator or ac compressor
1. Prepare Special Tool 9202 for checking. Pull out lockpin on special tool and slide out testing pin opposite the lockpin completely. Place drag needle on indicator needle. 2. Slide special tool on to the drive belt. Push in testing point arrow slowly until the lockpin is felt to engage, and read the displayed value from the dial gage. Adjusting value 9,5 0,3 scale units. Correct belt tightness if necessary. The slides must have complete contact on the belt surface. The special tool must not...
Technical Data Type 944 Model 88
Adjusting values and wear limits appear in pertinent repair groups Note USA values in brackets. Max. engine power to 80 1269 EC Net Power, SAE J 1349 at engine speed max. torque to 80 1269 EC Net Torque, SAE J 1349 at engine speed max. liter output DIN 70020 SAE J 1349 oil temperature and at 5000 rpm Pressure 5.5 Itr. 5.8 US qt 4.2 Itr. 4.4 US qt Outer correction angle Inner correction angle Valve guides Intake and exhaust Valve stem Intake Exhaust Groove 1 0.20-0.45 Groove 2 0.20 - 0.45...