spark plug change experience

[FSETH]

Originally Posted by i-want-in

What do you think bmw has a plug factory? OE and aftermaket are the same, just rebranded. A platinum or iridium tip plug w/one ground electrode is just that. No matter the maker. Two plugs of the same design and different brand are the same plug.

You are on fire! I think that makes you about 0 for 10 in this thread. I would just give up if I were you.

[m5james]

Maybe he can ask a mod to change his screen name to "i-want-out".

[1stE53]

Originally Posted by dlennard

[QUOTE Also did not use any anti-sieze either, plugs went in easy.

The anti-sieze is not for the plugs going in it is for the next time they are changed coming out.[/QUOTE]

Anti-seize is not for aluminum engines.

[JCL]

Originally Posted by i-want-in

False. An uncalibrated torque wrench leads to overtorqueing.

I'll agree with that. I think a more precise way of saying it is that antiseize, or thread lubricant, leads to increased clamping force for the equivalent torque value. The poster may have been suggesting that the increased clamping force is equivalent to that applied by an increased torque setting on a dry bolt. Since you are using a crush washer, that increased clamping force can be too much.

You appeared to support the use of torque wrenches earlier in this thread, but are now suggesting just to seat the plugs, and then turn them 45 degrees more. If you didn't use that anti-seize, you could rely on the torque settings.

I am also still wondering how aluminum and steel have a chemical reaction going on without the presence of an electrolyte. So steel and aluminum can't be bolted together in a dry environment without an insulator between them?

[JCL]

Originally Posted by i-want-in

OE and aftermarket are the same, just rebranded. ..... Two plugs of the same design and different brand are the same plug.

You're kidding, right?

I FTFY:
Two plugs of the same design and construction, that meet the same specifications and quality criteria, and different brand, may be the same plug.

Products coming off a production line are routinely tested. There are always production tolerances. Routinely, those that meet different test specifications are distributed through different channels, often at different prices. It happens with everything from oil filters to spark plugs to computer chips that get clocked faster.

Working for an engine manufacturer and as a distributor of their engine parts, we often ran into customers purchasing cheaper filters from the same supplier our engine manufacturer used, and claiming they were the same. We routinely cut them open to show them the filter construction differences, and tested the filter performance with portable particle counters, to demonstrate the different filter media used by the filter manufacturer, on a single production line.

The cheaper part may work just fine. Or, there may have been a reason for the manufacturer's original specifications, in which case it may not work fine or last as long. I am not saying they will all fail, but it isn't correct to say that they are always the same, just badge-engineered.

[i-want-in]

Originally Posted by FSETH

You are on fire! I think that makes you about 0 for 10 in this thread. I would just give up if I were you.

Its my perogitive, and I'm sure you would like that.

[i-want-in]

Originally Posted by m5james

Maybe he can ask a mod to change his screen name to "i-want-out".

Look at your avatar and how you publicly display your family, that's something to be proud of.

[i-want-in]

Originally Posted by 1stE53

The anti-sieze is not for the plugs going in it is for the next time they are changed coming out.

Anti-seize is not for aluminum engines.[/QUOTE]

Why not? Do tell-...... Corrosion leads to seizure. Alum is far more corrosive than steel.

[i-want-in]

Originally Posted by JCL

I'll agree with that. I think a more precise way of saying it is that antiseize, or thread lubricant, leads to increased clamping force for the equivalent torque value. The poster may have been suggesting that the increased clamping force is equivalent to that applied by an increased torque setting on a dry bolt. Since you are using a crush washer, that increased clamping force can be too much.

You appeared to support the use of torque wrenches earlier in this thread, but are now suggesting just to seat the plugs, and then turn them 45 degrees more. If you didn't use that anti-seize, you could rely on the torque settings.

I am also still wondering how aluminum and steel have a chemical reaction going on without the presence of an electrolyte. So steel and aluminum can't be bolted together in a dry environment without an insulator between them?

False- lack of lube leads to an erroneous reading, call a bolt manuf.

I support the use of a calibrated torque wrench. I personally dont need one for plugs. Almost everything else I will use one, gasketed components for sure, instances where bolt stretch is anticipated, calculated on a given torque, or where stretch could lead to failure, for sure.

There is still moisture in your motor oil, there is still moisture that gets to the top side of the plug. Yes your correct, it is far less likely in a head because of combustion oils.

[i-want-in]

Originally Posted by JCL

You're kidding, right?

I FTFY:
Two plugs of the same design and construction, that meet the same specifications and quality criteria, and different brand, may be the same plug.

Products coming off a production line are routinely tested. There are always production tolerances. Routinely, those that meet different test specifications are distributed through different channels, often at different prices. It happens with everything from oil filters to spark plugs to computer chips that get clocked faster.

Working for an engine manufacturer and as a distributor of their engine parts, we often ran into customers purchasing cheaper filters from the same supplier our engine manufacturer used, and claiming they were the same. We routinely cut them open to show them the filter construction differences, and tested the filter performance with portable particle counters, to demonstrate the different filter media used by the filter manufacturer, on a single production line.

The cheaper part may work just fine. Or, there may have been a reason for the manufacturer's original specifications, in which case it may not work fine or last as long. I am not saying they will all fail, but it isn't correct to say that they are always the same, just badge-engineered.

Your splitting hairs, and we are talking plugs.....thats it. Dont bring alll those other items into it because I did not mention them. Go with a proven brand and thats it. Only the tip and electrode design is where the difference is. The core and insulater is made of the same material on all plugs. And were not talking heat range either so dont go there.