Valve Cover Gasket and Tube Seals Thread

[1993 CB7 LX]

does anybody have the link to the DIY on replacing the valve cover gasket and tube seals? i searched and couldnt find it.

[K2e2vin]

Damn, I just did mine a couple of days ago. I didn't think to take pics.

It's honestly not that hard though; just unhook the PCV and breather hose, take off the spark plug boots(try to keep them in order), take of the 4 10mm valve cover bolts and one 10mm ground bolt; remove VC(may require some prying); make sure seal surfaces are clean and you can use a bit of oil, replace the seals(tip for the valve cover seal; press on it starting from the middle. do not slide your fingers across it); reinstall and be sure not to overtighten the valve cover bolts(I use a nut driver just in case instead of a ratchet).

[TypeG]

http://www.cb7tuner.com/vbb/showthre...highlight=tube
later.

[1993 CB7 LX]

thank you.

[1993 CB7 LX]

hey, just a quick question. are the upper tube seals at the end of the spark plug tube? cuz i know the lower ones are under the cam.

[Grin0048]

hey, just a quick question. are the upper tube seals at the end of the spark plug tube? cuz i know the lower ones are under the cam.

See picture in post #37 of the DIY thread...those are the uppers.

[1993 CB7 LX]

alright, last question. i have oil all over all 4 tubes and inside spark plug chambers. is it necessary for me to pull the camshaft and replace the lower seals? could i get away with just replacing the valve cover gasket and upper seals? or do i have to replace the lower seals also?

[Grin0048]

alright, last question. i have oil all over all 4 tubes and inside spark plug chambers. is it necessary for me to pull the camshaft and replace the lower seals? could i get away with just replacing the valve cover gasket and upper seals? or do i have to replace the lower seals also?

Well it's the rocker assembly that has to be pulled, not the cam, but replacing just the uppers, in all likelihood, will not fix the problem.

[1993 CB7 LX]

shit. alright. im gonna have 2 leave my car at school for a few days then, lol.

[Shag Wagon]

Most of the time its the lower tube seals. Most people look at what they have to go through and say screw it ill just leave those alone. If you are going to do tube seals you need to do them right and do the lowers too. I also wanna ask if your car has a slight skip at lower rpms. My middle tubes are drenched and I think its causing a misfire.

[K2e2vin]

It honestly should not take long at all.

[1993 CB7 LX]

Most of the time its the lower tube seals. Most people look at what they have to go through and say screw it ill just leave those alone. If you are going to do tube seals you need to do them right and do the lowers too. I also wanna ask if your car has a slight skip at lower rpms. My middle tubes are drenched and I think its causing a misfire.

it doesnt really "skip", just when im idling, it idles real rough, and some times shudders a bit, almost likes its gonna stall.

Also, another question. i wanna do this right, but i have only a ft-lb torque wrench at school, u know, the ones you torque tires with usually. do i need an in-lb torque wrench for when a put the rocker arm assembly back in? or can i just tighten them without one?

[1993 CB7 LX]

It honestly should not take long at all.

I only have an hour and 50 minutes in shop class though. is that enough time u think?

[K2e2vin]

That should b plenty if you know your way around the motor. Just dissassembling everything shouldn't take longer 10-15mins. What you can do is buy or check out a manual and study it for a bit so you know what to look for.

[1993 CB7 LX]

alright, but, do i really need an in-lb torque wrench? cuz all i have is a ft-lb torqoue wrench that use for tires. cant i just tighten the bolts on the cam and stuff until its tight?