Head off, Pistons out, need some technical data -

[Seventynine]

Hey all, about to swap out the rings on my little red car.

need to know the following -

Ring gap size
Head bolt tightening torque and sequence
Conrod bolt tightening torque

anything surprises i should be aware of also? i've rebuilt many engines over the years but nothing this as quirky as the E07A!

[stu g]

Ring gap size is:
top = 0.15 to 0.3mm. The up and down tolerance of the top ring in the piston groove is 0.035 to 0.060mm, with a service tolerance of 0.13mm
second = 0.3 to 0.45mm
oil = 0.2 to 0.5mm
Service limit on each is 0.6mm

Head bolt tightening torque is 6.2 - 6.8kg-m. Oil the threads first.

Cylinder head sequence, if you have the camshaft pulley on your right, and they are numbered 1 to 8 from top left to right and then bottom left to right, is 3 6 2 4 1 8 4 5
Note that when you take it off it is 8 1 5 4 6 3 7 2

Conrod cap torque is 3.2kg-m

Hope this helps,

Stu

[Seventynine]

Ring gap size is:
top = 0.15 to 0.3mm. The up and down tolerance of the top ring in the piston groove is 0.035 to 0.060mm, with a service tolerance of 0.13mm
second = 0.3 to 0.45mm
oil = 0.2 to 0.5mm
Service limit on each is 0.6mm

Head bolt tightening torque is 6.2 - 6.8kg-m. Oil the threads first.

Cylinder head sequence, if you have the camshaft pulley on your right, and they are numbered 1 to 8 from top left to right and then bottom left to right, is 3 6 2 4 1 8 4 5
Note that when you take it off it is 8 1 5 4 6 3 7 2

Conrod cap torque is 3.2kg-m

Hope this helps,

Stu


absolutely perfect. thankyou!

[stu g]

Hey, you're more than welcome, hope it goes well.

Stu

[Seventynine]

main cap torques too? didn't realise i'd have to take the ladder frame off to get to the rod bolts!

[stu g]

If you mean the 10mm bolts which clamp the crankshaft down, they are 4.8kg-m.

[Seventynine]

yeah, those, thanks!