What is 1993 mazda protege sohc head bolts tightening sequence and torque

For a 2001 Mazda Demio (DW) with a 1.3L engine, the cylinder head torque specifications are crucial for proper assembly. While I can provide a general guideline, it's important to consult the specific vehicle's service manual or a reliable automotive database for the most accurate information. The torque specs can vary depending on engine type and production changes.
A common practice for cylinder heads involves tightening the bolts in a specific sequence and sometimes in multiple stages. For many engines, the process might start at a lower torque value, followed by one or more additional steps where the torque is increased or the bolts are tightened further by a specified angle.
For Mazda engines around that period, a typical torque specification for cylinder head bolts might start in the range of 20-30 Nm (15-22 ft-lbs) for the initial step, followed by one or two more stages where each bolt is tightened further, often ending with an angular tightening (e.g., 60-70 degrees) in the final stage.
However, without access to specific information for the 2001 Mazda Demio 1.3L engine, this should be taken as a general guideline only. The exact torque specifications and tightening sequence are critical to avoid engine damage or leaks. It's strongly recommended to:

1. Obtain a service manual or a reliable repair guide for the 2001 Mazda Demio with the 1.3L engine.
2. Follow the specified torque values and tightening sequence exactly as described.
3. Ensure you're using a calibrated torque wrench for accuracy.

If you don't have the manual and can't find the information online, consider contacting a Mazda dealership or a professional mechanic with access to a comprehensive automotive database. They should be able to provide the exact specifications you need.

read the manual
$20

https://eautorepair.net/Marketing/Default.asp

https://www.aera.org/uploads/4/3/7/7/43776611/aera-torquespecs.pdf
(page 82/124)

https://www.2carpros.com/questions/head-bolt-torque-and-sequence-on-a-mazda-protege-16l-help

https://www.google.com/search?q=Where+is+obd2+port+on2002+mazda&biw=1362&bih=650&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjb68P25JrQAhWC14MKHUfwDxgQsAQIMg#tbm=isch&q=What%27s+the+head+bolts+tightening+sequence+and+torque+1993+Mazda+Protege

Hope this helps

Quote:





Originally Posted by norvelplagbao52

1993 saturn sl2 1.9 dohc cylinder head torque
specs and sequence
Cylinder head bolt
tightening procedure:
CYLINDER HEAD BOLT TIGHTENING SEQUENCE:

INTAKE
SIDE
8 4 1 5 9

7 3 2 6 10
EXHAUST SIDE

In sequence,
torque the cylinder head bolts. Torque: 30 Nm (22 ft-lbs).
In sequence,
torque all bolts. Torque: 50 Nm (37 ft-lbs)
In sequence, turn each bolt an
additional 90 degrees.





Originally Posted by norvelplagbao52

1993 saturn sl2 1.9 dohc cylinder head torque
specs and sequence
Cylinder head bolt
tightening procedure:
CYLINDER HEAD BOLT TIGHTENING SEQUENCE:

INTAKE
SIDE
8 4 1 5 9

7 3 2 6 10
EXHAUST SIDE

In sequence,
torque the cylinder head bolts. Torque: 30 Nm (22 ft-lbs).
In sequence,
torque all bolts. Torque: 50 Nm (37 ft-lbs)
In sequence, turn each bolt an
additional 90 degrees.

TORQUE ALL BOLTS PROPER SEQUENCE TO 14 FT LBS.THEN PAINT MARK ON THE OF EACH BOLT.USING MARK AS A REFERENCE TIGHTEN ALL THE BOLTS PROPER SEQUENCE AN ADDITIONAL 90 DEGREES.THEN TIGHTEN ALL BOLTS IN SEQUENCE ADDITIONAL 90 DEGREES. WRITE THIS NUMBER ON A PIECE OF PAPER. 8 4 1 5 AND UNDER THAT NUMBER WRITES THIS NUMBER UNDER THE NUMBER JUST GAVE YOU 7 3 2 6 THIS IS YOUR CYLINDER HEAD BOLT TORQUE SEQUENCE.

Fig. 1: Cylinder head bolt tightening sequence-2.0L SOHC engine





Fig. 2: Cylinder head bolt tightening sequence-2.0L and 2.4L DOHC engines

Tighten the bolts in 4 steps as follows:
a. First: all bolts to 25 ft. lbs. (34 Nm).
b. Second: all bolts to 50 ft. lbs. (68 Nm).
c. Third: all bolts again to 50 ft. lbs. (68 Nm).
d. Fourth: all bolts an additional 1 / 4 turn.

Do not use a torque wrench for the fourth step.

Hope helps (remember to rate and comment this).

DOHC - Tighten all bolts in sequence to 22 ft. lbs. (30 N.m). Then tighten all bolts to 37 ft. lbs. (50 N.m). Repeat sequence, tightening all bolts an additional 1/4 turn (90 degrees).

SOHC - Tighten all bolts in sequence to 22 ft. lbs. (30 N.m). Then tighten all bolts to 33 ft. lbs. (45 N.m). Repeat sequence, tightening all bolts an additional 1/4 turn (90 degrees).

Torque Sequences

try calling a junkyard and see if they will tell you the enterchange ok good luck

This procedure is for the SOHC only.

E: INSTALLATION
1. CYLINDER HEAD

1. Install cylinder head and gaskets on cylinder block. CAUTION: Use new cylinder head gaskets.
2. Tighten cylinder head bolts.

1. Apply a coat of engine oil to washers and bolt threads.
2. Tighten all bolts to 29 Nm (3.0 kg-m, 22 ft. lbs.) in alphabetical sequence. Then tighten all bolts to 69 Nm (7.0 kg-m, 51 ft. lbs.) in alphabetical sequence.
3. Back off all bolts by 180° first; back them off by 180° again.
4. Tighten bolts (a) and (b) to 34 Nm (3.5 kg-m, 25 ft. lbs.) .
5. Tighten bolts (c), (d), (e) and (f) to 15 Nm (1.5 kg-m, 11 ft. lbs.) .
6. Tighten all bolts by 80 to 90° in alphabetical sequence. CAUTION: Do not tighten bolts more than 90°.

1. Further tighten all bolts by 80 to 90° in alphabetical sequence shown in figure provided. CAUTION: Ensure that the total "re-tightening angle" [in the former two steps], do not exceed 180°.