TECHNICAL DATA
TD-7spec tableSpec values for K8 DOHC (1.8L V6) engine. RH/LH cylinder head distinctions for V6 camshaft journal diameters and bearing oil clearances.
Engine — K8 DOHC technical data
Valve seat — Seat angle
Sub-itemIN
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC45°
Valve seat — Seat angle
Sub-itemEX
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC45°
Seat contact width mm {in}
Sub-itemIN
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.8–1.4 {0.032–0.055}
Seat contact width mm {in}
Sub-itemEX
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.8–1.4 {0.032–0.055}
Seat sinking mm {in}
Sub-itemIN
DetailStandard
No.1
No.2, 3, 4
No.5 / K8 DOHC41.5 {1.634}
Seat sinking mm {in}
Sub-itemIN
DetailMaximum
No.1
No.2, 3, 4
No.5 / K8 DOHC43.1 {1.697}
Seat sinking mm {in}
Sub-itemEX
DetailStandard
No.1
No.2, 3, 4
No.5 / K8 DOHC41.5 {1.634}
Seat sinking mm {in}
Sub-itemEX
DetailMaximum
No.1
No.2, 3, 4
No.5 / K8 DOHC43.1 {1.697}
Valve spring — Free length
Sub-itemStandard mm {in}
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC46.92 {1.847}
Valve spring — Free length
Sub-itemMinimum mm {in}/ N {kgf, lbf}
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC38.7 {1.524}/233–263 {23.75–26.88, 171.8–194.4}
Valve spring — Out-of-square mm{in}
Sub-item
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC1.63 {0.064}
Camshaft — Cam height mm {in}
Sub-itemIN
DetailStandard
No.1
No.2, 3, 4
No.5 / K8 DOHC42.665 {1.6797}
Camshaft — Cam height mm {in}
Sub-itemIN
DetailWear limit
No.1
No.2, 3, 4
No.5 / K8 DOHC42.465 {1.6718}
Camshaft — Cam height mm {in}
Sub-itemEX
DetailStandard
No.1
No.2, 3, 4
No.5 / K8 DOHC43.516 {1.7132}
Camshaft — Cam height mm {in}
Sub-itemEX
DetailWear limit
No.1
No.2, 3, 4
No.5 / K8 DOHC43.318 {1.705}
Camshaft — Journal diameter mm {in}
Sub-itemRH cylinder head
DetailIN
No.129.975–29.995 {1.1802–1.1809}
No.2, 3, 425.910–25.930 {1.0201–1.0208}
No.5 / K8 DOHC25.940–25.960 {1.0213–1.0220}
Camshaft — Journal diameter mm {in}
Sub-itemRH cylinder head
DetailEX
No.125.940–25.960 {1.0213–1.0220}
No.2, 3, 425.910–25.930 {1.0201–1.0208}
No.5 / K8 DOHC25.940–25.960 {1.0213–1.0220}
Camshaft — Journal diameter mm {in}
Sub-itemLH cylinder head
DetailIN
No.125.940–25.960 {1.0213–1.0220}
No.2, 3, 425.910–25.930 {1.0201–1.0208}
No.5 / K8 DOHC25.940–25.960 {1.0213–1.0220}
Camshaft — Journal diameter mm {in}
Sub-itemLH cylinder head
DetailEX
No.129.975–29.995 {1.1802–1.1809}
No.2, 3, 425.910–25.930 {1.0201–1.0208}
No.5 / K8 DOHC25.940–25.960 {1.0213–1.0220}
Camshaft — Journal diameter mm {in}
Sub-itemOut-of-round
Detail
No.1
No.2, 3, 40.02 {0.0008}
No.5 / K8 DOHC
Camshaft bearing oil clearance mm {in}
Sub-itemRH/LH cylinder head IN/EX
Detail
No.10.040–0.081 {0.0016–0.0031}
No.2, 3, 40.070–0.111 {0.0028–0.0043}
No.5 / K8 DOHC0.040–0.081 {0.0016–0.0031}
Camshaft bearing oil clearance mm {in}
Sub-itemMaximum
Detail
No.10.120 {0.0047}
No.2, 3, 40.150 {0.0059}
No.5 / K8 DOHC0.120 {0.0047}
Camshaft runout mm{in}
Sub-item
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.02 {0.0008} max.
Camshaft end play mm {in}
Sub-itemStandard
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.05–0.10 {0.0020–0.0039}
Camshaft end play mm {in}
Sub-itemMaximum
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.14 {0.006}
Cylinder block — Distortion mm {in}
Sub-item
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.15 {0.006} max.
Cylinder bore diameter mm {in}
Sub-itemStandard size
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC75.000–75.022 {2.9528–2.9536}
Cylinder bore diameter mm {in}
Sub-item0.25 {0.010} oversize
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC75.250–75.272 {2.9626–2.9634}
Cylinder bore diameter mm {in}
Sub-item0.50 {0.020} oversize
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC75.500–75.522 {2.9725–2.9733}
Cylinder bore taper and out-of-round mm {in}
Sub-item
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.022 {0.0009} max.
Piston diameter (measured at 90° to pin bore axis and 16.5mm {0.650 in} below oil ring groove) mm {in}
Sub-itemStandard size
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC74.953–74.985 {2.9509–2.9521}
Piston diameter mm {in}
Sub-item0.25 {0.010} oversize
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC75.203–75.235 {2.9608–2.9620}
Piston diameter mm {in}
Sub-item0.50 {0.020} oversize
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC75.453–75.485 {2.9706–2.9718}
Piston to cylinder clearance mm {in}
Sub-itemStandard
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.028–0.056 {0.0011–0.0022}
Piston to cylinder clearance mm {in}
Sub-itemMaximum
Detail
No.1
No.2, 3, 4
No.5 / K8 DOHC0.15 {0.006}