Tech:Engine/K-Series/TRD

I'll let TRD do the talking!!!

http://www.vhtracing.com/TRD_K_ENGINE_MANUAL.pdf (Dead link)

http://www.rollaclub.com/hosted/TRD-K-Engine-Manual.pdf (Mirror, 25MB)

Link by Taz_Rx

Transcription

Stage I

Without altering the displacement (1,166 cc), the pistons have been established to increase the compression ratio.

Cylinder Head Gasket, Piston & Piston Rings

(1) Main modifications

a. Cylinder head gasket.

Due to increase of compression ratio, the thickness upon assembling has been revised.

b. Piston

Without altering the displacement (75∅ 1,166cc), the compression ratio has been incrased.

c. Piston rings.

Two compression rings with thickness of 1 mm are utilized and the oil ring is of three-piece type with the thickness of 2.5mm.

(2) Required parts.

Description	Qty.
Gasket,cylinder head	1
Ring set, piston	4
Piston w/pin	4

(3) Assembling standards.

Item	Sports parts	S. T. D
Piston clearance mm	0.06~0.08	0.03~0.05

Item	Sports parts			S. T. D
	compression rings		Oil ring	Compression rings		Oil ring
	No. 1	No.2		No.1	No.2
Clearance between ring & ring groove (mm)	0.02~0.04	←	0.015~0.06	0.03~0.07	0.02~0.06	0.015~0.06
Gap clearance (mm)	0.15~0.35	←	0.20~0.90	0.15~0.35	←	0.20~0.90

Stage II

Besides the boring of the cylinder block and correction of the valve seats contacting surfaces, parts have been established which are capable for assembling almost without any modification.

1. PISTON & PISTON RINGS

(1) Main modifications.

a. Piston

The oversize is 3mm (78∅) with the displacement of 1,261 cc.

b. Piston rings

Two compression rings with the thickness of 1 mm are utilized.

The oil ring is of three-piece type with the thickness of 2.5 mm.

(2) Required parts.

Description	Qty.
Gasket,cylinder head	1
Ring set, piston	4
Piston w/pin	4

(3) Assembling standards.

Item	Sports parts	S. T. D
Piston clearance mm	0.07~0.10	0.03~0.05

Item	Sports parts			S. T. D
	compression rings		Oil ring	Compression rings		Oil ring
	No. 1	No.2		No.1	No.2
Clearance between ring & ring groove (mm)	0.02~0.04	←	0.015~0.06	0.03~0.07	0.02~0.06	0.015~0.06
Gap clearance (mm)	0.15~0.35	←	0.20~0.90	0.15~0.35	←	0.20~0.90

2. VALVE MECHANISM

(1) Main modifications.

a. Camshaft

The revise the valve timing, the cam profiles are revised.

b. Valves

To improve the intake and exhaust efficiency, the head diameters of the intake and exhaust valves have been enlarged.

c. Valve springs.

To prevent surging, revised from single to dual springs and the installed load is revised.

d. Valve spring retainer & spring seat.

Due to the revision of the valve springs from single to dual, the retainer and seat are newly established.

(2) Required parts.

No.	Part No.	Description	Qty.	Remarks
1	13511-KE003	Camshaft	Either one	Overlap 70°
	13511-KE051	Camshaft		Overlap 66°
2	13711-KE051	Valve, intake	4	Head dia. 37∅
3	13715-KE051	Valve, exhaust	4	Head dia. 30∅
4	90501-42409	Spring, compression (outer)	8	"O"
5	90502-KE501	Spring, compression (inner)	8
6	13734-KE051	Seat, valve spring	8
7	13741-KE051	Retainer, valve spring	8
8	90913-03005	Lock, valve spring retainer	16	"O"

(3) Assembling procedures & assembling standards.

Replace with the above parts.

3. INTAKE & EXHAUST SYSTEMS

(1) Main modifications

a. Intake manifold.

Matched with the carburetor throttle bore, enlarged the ports to reduce the intake resistance.

b. Exhaust manifold.

Revised the shape to improve the exhaust efficiency.

(2) Required parts.

No.	Part No.	Description	Qty.	Remarks
1	17104-KP751	Manifold sub-assy. exhaust	1
2	17111-KE051	Manifold sub-assy. intake	1
3	21911-TE001	Gasket, carburetor	8	40∅
4	21912-TE001	Insulator, carburetor heat	4	40∅

(3) Assembling procedures.

Replace with the above parts.

4. FUEL SYSTEM & ACCELERATOR LINKAGE

(1) Main modifications.

a. Carburetor.

Revised the throttle bore to match the specification for high speed driving.

b. Accelerator linkage.

Due to the revision of the carburetor, the shape of the linkage is revised.

(2) Required parts.

No.	Part No.	Description	Qty.	Remarks
1	21001-SP001	Carburetor set	1	Dellorto DHLA40 x 2
2	78022-KE002	Linkage set, accelerator	1

(3) Assembling procedures.

Replace with the above parts.