Time-sert and spark plug depth CB500T

K

koolio

Been Around the Block
Probably overthinking it but will ask anyway.

I had to get one spark plug hole repaired it was so damaged by the PO on a CB500t. So I took the head to an engineering shop. Thought I may as well get the other plug time serted also.

Anyway the one side was so damaged they had to use a special wider time sert. So now that I put the spark plugs in I notice that the plug with the special time sert sits deeper that the other one.

Is this a big deal for good combustion or am I overthinking it?

I've attached a photo of each side fully screwed in.
 

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xb33bsa said:
it will be fine the loss in volume is too small to make a dif
Click to expand...

Thanks actually there the one with the special time sert has a tiny increase in volume as the spark plug is higher up (or deeper into the head).

I was just concerned about having two different depths for the plugs and whether or not the deeper into the head (or higher up) would be less efficient at combustion.

I know I'm overthinking it, perfectionist traits.
 
ok i see
as long as it doesn't hit the piston it will be fine you could also use a plug shim to get it same as the others that would be cool
 
xb33bsa said:
ok i see
as long as it doesn't hit the piston it will be fine you could also use a plug shim to get it same as the others that would be cool
Click to expand...

The one that is lower is the original height. So there will be no problem. I could shim it higher.

Do you think the plug that is deeper in the head (so the higher one up) is a problem or should it be fine? Can't see how I can get it lower into the cylinder given the special time sert.
 
xb33bsa said:
i so confuse now
Click to expand...

Oops ok, the top photo is the stock depth of the spark plug.

The bottom photo the spark plug is higher up and deeper into the head (rather than deeper into the cylinder) this is due to the special time sert that needed to be put in due to the very damaged hole.

My concern is about the bottom photo and that it is not far enough into the cylinder like the stock top photo is.
 
bradj said:
Xb you ever meet someone that had no business touching tools?
Click to expand...

Well I took it to a pro shop so I don't see how they did a bad job.

I know people try and get the spark plug depth equal in cars when certain spark plugs have been time serted, just wondering if its the same here.
 
Your over thinking it relax some real fast cars and bikes have come outta shops with gravel floors. my grandfather use to rebuild j3 cub motors while he was full of jim beam. inturnal combustion engins are pretty tuff for the most part.
I was a automotive machinist for along time, ypu would be shocked to see what rigged up shit people get away with
 
Ok really appreciate it.

Was thinking of shimming the other one up but will leave that out now.

Thanks
 
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