Motor Assembly

1204_cb77 · Post by **1204_cb77** » Tue Apr 09, 2019 10:34 pm

Hi, is it possible to re-install the cylinder head and head cover on the motor while the rest of the motor is in the frame? If I recall there are to rear lower motor mounts and then there are the upper mounts near the head....Just curious if anyone has removed/installed the head while the motor is still in the frame.

Thankkkkkks!

G-Man · Post by **G-Man** » Wed Apr 10, 2019 1:40 am

It might be possible but you will have to remove the top rear mount as well to tilt the engine down enough. Even then you've got to get the head off those long studs.

To get to that point you will have all but the lower rear mounts in place so the engine is 90% out.....

G

1204_cb77 · Post by **1204_cb77** » Wed Apr 10, 2019 10:51 am

G-Man wrote:It might be possible but you will have to remove the top rear mount as well to tilt the engine down enough. Even then you've got to get the head off those long studs.

To get to that point you will have all but the lower rear mounts in place so the engine is 90% out.....

G

Word, that is what I thought. I'll wait till the head gets rebuilt then slap it in all at once. Thanks mate.

1204_cb77 · Post by **1204_cb77** » Fri Apr 12, 2019 5:01 pm

one more question :)

I am installing new rings currently and unfortunately one of the oil rings was broken during install. A tiny piece snapped off between the oil vents.

Now, i have .25 pistons and orders these rings : 13020-275-000 which state specifically for the CB77. Upon more research I am finding part number: 13020-266-000 listed for the CA77 for much cheaper. Will these rings fit too? both kits are .25 over. I am reading that the CA and CB have different pistons, etc... just curious simply about rings.

Thanks!

G-Man · Post by **G-Man** » Sun Apr 14, 2019 12:13 am

I think that the 266 oil rings will fit but the compression rings are thicker.

G

1204_cb77 wrote:one more question :)

I am installing new rings currently and unfortunately one of the oil rings was broken during install. A tiny piece snapped off between the oil vents.

Now, i have .25 pistons and orders these rings : 13020-275-000 which state specifically for the CB77. Upon more research I am finding part number: 13020-266-000 listed for the CA77 for much cheaper. Will these rings fit too? both kits are .25 over. I am reading that the CA and CB have different pistons, etc... just curious simply about rings.

Thanks!

1204_cb77 · Post by **1204_cb77** » Sun Apr 14, 2019 7:24 pm

G-Man wrote:I think that the 266 oil rings will fit but the compression rings are thicker.

G

1204_cb77 wrote:one more question :)

I am installing new rings currently and unfortunately one of the oil rings was broken during install. A tiny piece snapped off between the oil vents.

Now, i have .25 pistons and orders these rings : 13020-275-000 which state specifically for the CB77. Upon more research I am finding part number: 13020-266-000 listed for the CA77 for much cheaper. Will these rings fit too? both kits are .25 over. I am reading that the CA and CB have different pistons, etc... just curious simply about rings.

Thanks!

Yeah, it appears the oil rings may be the same but the CB compression rings are 1.5mm and the CA's are 1.8mm..