Blown 331
01-12-2009, 09:41 PM
I'm in the process of getting a 70 running. It had no compression at all so I pulled the head. The intake valve was stuck and very worn / sharp. The top ring was broken and the oil ring was stuck. So I made an order to dr atv and got a top end gasket set, intake valve and rings.
I got my parts today. On dr atv's site it says Vesrah top end sets come with valve seal, my kit has none. This is the first 70 I've been in to so I'm not familiar with them. So either that's just a generic description and you get them if your application needs them (my engine had them) or I'm just gonna have to get them else where. I guess from Honda? That's gotta be pricey, suggestions? But I do need them correct? Hey it's a small engine and they are damn near just o-rings so who knows. Almost thought about using o-rings. lol.
Next my kit came with 5 o-rings. Two are for valve covers, one goes on each side of the jug for a seal for the oil return port. And I can't figure out the last one. Yes I have a Clymer manual but it covers like 20 models from 1965 on, so it's not detailed in this manner. It's smaller than the o-rings for the oil return port. I'm guessing it's possibly for the pressure port but there is only one o-ring, does the head gasket seal the pressure port with out o-rings? I can see where the oil comes out of the bottom end next to a head stud. There is a cut out in the jug kinda shaped like a triangle right next to a stud hole, do I just wedge the o-ring in that triangle hole or what? lol.
And lastly I noticed the flywheel key is sheared off clean, I tried getting it out with a chisel with no luck, any tips on those?
EDIT: I just looked at the valve seals again and there is only one on the exaust which makes no sense since the intake is gonna have vacuum on it but there is no where to even put on one the intake valve. And the exhaust actually had no seal at all (I think it fell apart), but I do have some weird metal thing and I don't remember how it goes. I think the seal is just an o-ring. Which way does the metal peice go? Lip or or lip down and does the o-ring go on top or between the metal piece and head? And can I just grab an O-ring?
I got my parts today. On dr atv's site it says Vesrah top end sets come with valve seal, my kit has none. This is the first 70 I've been in to so I'm not familiar with them. So either that's just a generic description and you get them if your application needs them (my engine had them) or I'm just gonna have to get them else where. I guess from Honda? That's gotta be pricey, suggestions? But I do need them correct? Hey it's a small engine and they are damn near just o-rings so who knows. Almost thought about using o-rings. lol.
Next my kit came with 5 o-rings. Two are for valve covers, one goes on each side of the jug for a seal for the oil return port. And I can't figure out the last one. Yes I have a Clymer manual but it covers like 20 models from 1965 on, so it's not detailed in this manner. It's smaller than the o-rings for the oil return port. I'm guessing it's possibly for the pressure port but there is only one o-ring, does the head gasket seal the pressure port with out o-rings? I can see where the oil comes out of the bottom end next to a head stud. There is a cut out in the jug kinda shaped like a triangle right next to a stud hole, do I just wedge the o-ring in that triangle hole or what? lol.
And lastly I noticed the flywheel key is sheared off clean, I tried getting it out with a chisel with no luck, any tips on those?
EDIT: I just looked at the valve seals again and there is only one on the exaust which makes no sense since the intake is gonna have vacuum on it but there is no where to even put on one the intake valve. And the exhaust actually had no seal at all (I think it fell apart), but I do have some weird metal thing and I don't remember how it goes. I think the seal is just an o-ring. Which way does the metal peice go? Lip or or lip down and does the o-ring go on top or between the metal piece and head? And can I just grab an O-ring?