.016" down the hole! : V-Twin Forum: Harley Davidson Forums

skyhook · 02-06-2007, 06:10 PM

Just picked up heads and cyls off the wife's '07 dyna. Couldn't believe it when the wrench told me the pistons were .016" down the hole. Talk about loose tolerances. Taking heads and cyls to the porter in the morning!

livinproof · 02-06-2007, 06:53 PM

whoa! good info there! maybe this answers why, out of the box, some bikes (or even cars or sleds, etc...) seem to run so strong, and their identical twin can be an absolute stone......

BVBOB · 02-06-2007, 07:00 PM

Wow, my 07 Ultra were down 7 thousands and I thought that was bad. What month of production was the bike assembled?

Jeffytune · 02-06-2007, 07:06 PM

Quote:

Originally Posted by skyhook

Just picked up heads and cyls off the wife's '07 dyna. Couldn't believe it when the wrench told me the pistons were .016" down the hole. Talk about loose tolerances. Taking heads and cyls to the porter in the morning!

I am a little fuzzy on just what you are saying here, do you mean at TDC, the top of the piston is .016 from the top of the cylinder deck?

If so, you must take into consideration that the bottom of the cylinder has a rubber O-ring, and may have decompressed and raised the deck height.

skyhook · 02-06-2007, 07:31 PM

I mean using shims and snugging the cylinders the deck height was -.016

Jeffytune · 02-06-2007, 07:32 PM

Quote:

Originally Posted by skyhook

I mean using shims and snugging the cylinders the deck height was -.016

Ok, I get what you mean now.

Thanks.

skyhook · 02-06-2007, 07:33 PM

don't know the date of manufacture, we bought it in sept

claydbal · 02-06-2007, 07:35 PM

word is that the rod lrngth oin the new 96 motor is .009 shorter.

BTW, this aint a doof thread jeffy!

Jeffytune · 02-06-2007, 07:39 PM

Quote:

Originally Posted by claydbal

word is that the rod lrngth oin the new 96 motor is .009 shorter.

BTW, this aint a doof thread jeffy!

As you and I both well know it is not, thus no reference was make to my group, and this question I asked was for information, not humor.

Qhorin · 02-06-2007, 09:10 PM

my 07 came apart today and my mechanic said the piston was .018 down the hole. I cant verify this I dont even know if he had the cylinders torqed down when he checked cause I stepped out for alittle while. In any case thats what he said !!!!

Rdubu · 02-06-2007, 09:13 PM

Quote:

Originally Posted by Jeffytune

As you and I both well know it is not, thus no reference was make to my group, and this question I asked was for information, not humor.

My it sounds like someone woke up on the wrong side of the Rock, LOL , its a Geico thing!!!

skyhook · 02-19-2007, 01:14 PM

Just got back from the shop. The tech had the heads back on and was working on the rockers. Hope to have the bike running tonight. He showed me the feeler gauge that he'd used to measure the new deck height. It was .0015"!

Bruce Woltz · 02-19-2007, 05:33 PM

So how did he fix it? Bruce

route66paul · 02-19-2007, 06:41 PM

There are thinner gaskets to be used in place of the o-rings. I think that comitec makes some.

skyhook · 02-19-2007, 07:13 PM

We had the cylinders machined.