Blue Smoke at idle after sitting

[kamikazeredneck]

So I've been doing some upgrades and so my car has been sitting for about 2 weeks. I went to start it and it fired right up, no problems but when I brought up the RPMs a little there was some blue smoke coming out of the exhaust. I let it sit and as the engine started to warm up the smoke went away. I started it later that day after it had cooled and there wasn't any smoke. Could my valve seals be going out?

I usually start it once a week and this has never happened but I just couldn't start it for around 2 weeks this time. Does anyone have any ideas or is this just nothing to worry about?

 

[g4ebguy90]

Sounds exactly like valve guide seals. You let the car sit, the oil seeps down on to the piston or back of the valve, and you go to start it, it gets burned up till there is no more.

Alot of old cars do this. Very common. Would I rip apart a motor to fix it, NO.

 

[kamikazeredneck]

Sounds exactly like valve guide seals. You let the car sit, the oil seeps down on to the piston or back of the valve, and you go to start it, it gets burned up till there is no more.

Alot of old cars do this. Very common. Would I rip apart a motor to fix it, NO.

Alright well the motor has 50,000 miles on it so I didn't think that it would be showing this early but if that's the case I'll look into fixing it possibly

Thank you

 

[Deadliest Synn]

As g4ebguy90 stated its most likely your valve guide seals. Its not a difficult repair by any means. I just replaced the ones in my 93 laser, it took me roughly 2 hrs start to finish. It would have been faster had I not been using an ultra cheap valve spring compressor that kept slipping off ....gotta love harbor freight stuff. If you feel like your up to doing it feel free to PM me and I will be more than happy to walk you through the process.

 

[g4ebguy90]

You actually used a valve spring compressor tool!

Man, I had a machine help me out doing that. I think it would be a really big pain to use a compressor tool on the twin cam head.

But you had the head off the car though...Idk how you would do it with it on it.

He would have to take his off.

 

[Deadliest Synn]

Yeah i did it with the head still on it was a pita. Mine were shot, funny thing was ive since pulled the motor for a rebuild and had to temporarily put a donor 1.8 in place of it i stole from my sisters wrecked eclipse. I miss my 4g63t so bad . Alas mine had 220,000 on it so it needs a full rebuild and is taking way to long, but my spring compressor that i used is very small and still barely fit over the springs but like I said that portion was a major pita.

 

[g4ebguy90]

How did the valves not fall?

 

[Deadliest Synn]

Pull the spark plugs and drop in and air chuck with the correct threading to keep the valves up.

 

[g4ebguy90]

Wow that is a good idea, but for a customer car I would never risk that.

 

[knochgoon24]

There are several methods.

-Rotate the engine so the cylinder you want to work at is down from TDC. Stuff some new 1/4" or 3/8" nylon rope in the cylinder. Rotate the engine so that piston comes up until it stops. Then you can use your valve spring removal tool of choice.

-Use the fittings from a leakdown tester and pressurize the cylinder while it's a TDC. Use valve removal tool of choice.

 

[Deadliest Synn]

Thats how the garage I worked for done it. I have personally done around a 100 cars of different makes and models and never had a single valve fall.

 

[g4ebguy90]

Everyone does different things. It seems safe enough. I just don't know if I would do it to anyones car besides mine you know. But that's just me.

I guess for a simple valve stem seal replacement, it would probaly be the cheapest and fastest way to do it.

 

[Deadliest Synn]

I promise its safe . It sure beats having to replace the head gasket.

 

[Pyromonty502]

it's always a good idea to compensate for having an older car by maintaining it. I just baught a 98 eclipse rs with 64K miles. The first thing i did was replace all the hoses and fanbelts. Flushed everything. now i don't have to worry about some old rubber hose cracking and me smoking down on the side of the road. it's worth the investment.

 

[josh1095]

a 98 with 56k??? damn dude, excellent find, congrats. my 98 has 200k on it now . your dead on tho, hoses and belts are age related failures that can be prevented. always a good idea