My first-time experience

Laura · Post by **Laura** » Mon Oct 16, 2006 4:32 am

Well, I thought I'd join the cool club and buy a Subaroo, little did I know I bought this instead. . . pleased to say it's all better now, but this is what Nick (555BCTurbo) and I had to deal with.

Yukonart · Post by **Yukonart** » Mon Oct 16, 2006 5:51 am

Gangster first post, Laura!!

Look on the bright side. Your boyfriend can take care of all this stuff!

GLCraigGT · Post by **GLCraigGT** » Mon Oct 16, 2006 6:03 am

That's not the fist time I've seen an Ej22 head with that problem.

555BCTurbo · Post by **555BCTurbo** » Mon Oct 16, 2006 7:11 am

The car ran remarkably well for only firing on 3 holes

Laura · Post by **Laura** » Mon Oct 16, 2006 7:52 pm

GLCraigGT wrote:That's not the fist time I've seen an Ej22 head with that problem.

Does this mean you also know what can cause it?

Splinter · Post by **Splinter** » Mon Oct 16, 2006 8:03 pm

I thought this thread was going to be a spam ad for a porn site.

All_talk · Post by **All_talk** » Mon Oct 16, 2006 8:34 pm

Splinter wrote:I thought this thread was going to be a spam ad for a porn site.

Thought?? Or hoped?

Gary

wiscon_mark · Post by **wiscon_mark** » Mon Oct 16, 2006 10:50 pm

Hoped, for sure.

But the SN is never as obvious as "Laura"

It's usually "dirtyshoe" or something stupid like that

Splinter · Post by **Splinter** » Mon Oct 16, 2006 10:53 pm

All_talk wrote:
Splinter wrote:I thought this thread was going to be a spam ad for a porn site.
Thought?? Or hoped?

Gary

A little of both

evolutionmovement · Post by **evolutionmovement** » Tue Oct 17, 2006 12:54 am

Same happened to mine. Did over 85 on the highway like that, too.

Richard · Post by **Richard** » Tue Oct 17, 2006 1:32 am

Ok I'm a bit of a noob when it comes to the inside of engines. The one one the right definitely looks different from the left one. What exactly is going on in that picture? Carbon buildup?

Splinter · Post by **Splinter** » Tue Oct 17, 2006 1:45 am

The big chunk missing out of the exhaust valve

Richard · Post by **Richard** » Tue Oct 17, 2006 2:27 am

Oh that's what that is. All the valves look a little funky on that side. What would cause that?

wiscon_mark · Post by **wiscon_mark** » Tue Oct 17, 2006 5:48 am

detonation?

BSOD2600 · Post by **BSOD2600** » Tue Oct 17, 2006 6:16 am

What are common symptoms of this problem?

wiscon_mark · Post by **wiscon_mark** » Tue Oct 17, 2006 6:17 am

BSOD2600 wrote:What are common symptoms of this problem?

engine knock

AWD_addict · Post by **AWD_addict** » Tue Oct 17, 2006 7:22 am

Knock and detonation are technically different. Detonation is a rapid wave from one source, knock has multiple sources. But anyway, yeah.

wiscon_mark · Post by **wiscon_mark** » Tue Oct 17, 2006 2:48 pm

Well, if you're getting knock and you still push it, wouldn't you get detonation?

free5ty1e · Post by **free5ty1e** » Tue Oct 17, 2006 5:11 pm

is that cyl # 3, last in line for the stock serial fuel delivery? If so I believe that's what my exhaust valves are starting to look like (in both the 92 and the 94 - havent comp tested the 91 yet)

Welcome to the board Laura.

evolutionmovement · Post by **evolutionmovement** » Tue Oct 17, 2006 9:30 pm

In my case my knock sensor was bad when I removed the engine and since I don't believe in coincidences and my car seemed to be a ringer even on its cheap gas, I suspect a build up of carbon (increased compression ratio) over nearly 1/4 million miles unchecked by the knock sensor did it in. Ran the balls (hard acceleration to redline in the first three gears onto the highway) until the exhaust started making a funny sound off the guardrail. Started to run rough a few miles later. Since it was using oil like mad for several days prior, I think it had burnt a little, but then the cracked or slightly melted part formed a hot spot which completed the destruction of the valve. Mine was cylinder #3.

AWD_addict · Post by **AWD_addict** » Tue Oct 17, 2006 11:47 pm

wiscon_mark wrote:Well, if you're getting knock and you still push it, wouldn't you get detonation?

If you're getting knock you're pretty much getting detonation. Pushing it will make it worse.

MRtuningCO · Post by **MRtuningCO** » Fri Oct 27, 2006 4:04 am

same thing with my BD. i bought it like that and drove it home 600 miles.

subytech · Post by **subytech** » Sun Oct 29, 2006 1:35 am

AWD_addict wrote:Knock and detonation are technically different. Detonation is a rapid wave from one source, knock has multiple sources. But anyway, yeah.

Sorry to steal your thunder but Detonation is one flame front from the spark plug smashing into another flame front from an unwanted ignition point somewhere in the cylinder, like a hot spot, and "knock" utherwise known as preignition is unwanted cumbustion before the spark fires

AWD_addict · Post by **AWD_addict** » Sun Oct 29, 2006 8:48 pm

No thunder stolen, you're right.

I wrote that post poorly, it's misleading about detonation.
Thanks for the correction.

Do you agree that knock is from multiple sources in the end-gases?

tris91ricer · Post by **tris91ricer** » Mon Oct 30, 2006 4:23 pm

subytech wrote:preignition is unwanted cumbustion

*giggle* You spelled it wrong! But I bet it feels so right!

legacycentral bbs

A forum for 89-94 BC-BF(BJ) Legacy Owners and Fans

My first-time experience

My first-time experience