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Search found 195 matches

by bentvalves
Fri Jul 03, 2020 8:43 pm
Forum: Engine Tech
Topic: recognizing alusil
Replies: 12
Views: 422

Re: recognizing alusil

correct the sleeves are indeed nikasil.

thank you mate.
by bentvalves
Thu Jul 02, 2020 6:47 pm
Forum: Engine Tech
Topic: recognizing alusil
Replies: 12
Views: 422

Re: recognizing alusil

so I guess nikasil can be applied to iron blocks and sleeves, something I was not aware of. This coming from total-seal and ptuomov. nikasil has a distinct bright appearance to it however, this looks to be DLC. Diamond like carbon coating which google is telling me has been applied to cylinder bores...
by bentvalves
Thu Jul 02, 2020 3:44 pm
Forum: Engine Tech
Topic: recognizing alusil
Replies: 12
Views: 422

Re: recognizing alusil

double post
by bentvalves
Thu Jul 02, 2020 3:23 pm
Forum: Engine Tech
Topic: recognizing alusil
Replies: 12
Views: 422

Re: recognizing alusil

If I had to wager a bet, these bores are DLC treated.

It is like trying to hone glass.
by bentvalves
Thu Jul 02, 2020 1:31 pm
Forum: Engine Tech
Topic: recognizing alusil
Replies: 12
Views: 422

Re: recognizing alusil

Alusil is not applied, the parent material is a high silicon content aluminum. It's a special process to hone them, I did a Youtube video showing how I do BMW V8's, using a profilometer to ensure that each step arrives at the right Ra value before moving on to the next step. I'll try to attach the ...
by bentvalves
Wed Jul 01, 2020 5:06 pm
Forum: Engine Tech
Topic: recognizing alusil
Replies: 12
Views: 422

Re: recognizing alusil

from what I can find, it is being applied to aluminum only.
by bentvalves
Wed Jul 01, 2020 4:07 pm
Forum: Engine Tech
Topic: recognizing alusil
Replies: 12
Views: 422

recognizing alusil

Can alusil be applied to a cast iron sleeve, or like nikasil is it only applied to an aluminum bore?

03 Lamborghini Murcialago. Cylinder liners have a dull grey appearance to them and I'm at a bit of a standstill until I determine what I'm working with.

please advise fellow speed talkers.
by bentvalves
Fri May 15, 2020 6:50 pm
Forum: Engine Tech
Topic: Enging Break-In (From Total Seal Piston Rings)
Replies: 11
Views: 1189

Re: Enging Break-In (From Total Seal Piston Rings)

was this from todays webinar that I, without fail managed to miss?
by bentvalves
Fri Apr 24, 2020 12:51 am
Forum: Engine Tech
Topic: Sunnen rod heater problem.
Replies: 20
Views: 723

Re: Sunnen rod heater problem.

my right coil worked, the left did not.

one day I held the left button pegged for like 5 minutes, the unit clicked (reset?) and it has worked ever since.
by bentvalves
Thu Apr 23, 2020 8:35 pm
Forum: Engine Tech
Topic: Sunnen rod heater problem.
Replies: 20
Views: 723

Re: Sunnen rod heater problem.

push the switch/button in and hold it pegged for a few minutes. Does the coil begin to heat up?
by bentvalves
Mon Apr 13, 2020 5:26 pm
Forum: Engine Tech
Topic: Who owns there own dingle honner?
Replies: 17
Views: 1533

Re: Who owns there own dingle honner?

smh...
by bentvalves
Sun Mar 29, 2020 10:56 pm
Forum: Engine Tech
Topic: Unsure what to do with 0.0020" Main Clearance
Replies: 66
Views: 3167

Re: Unsure what to do with 0.0020" Main Clearance

what do you have for clearance with those Oliver rods Mike with the same x bearing?
by bentvalves
Tue Feb 25, 2020 2:47 pm
Forum: Engine Tech
Topic: Best race valve material
Replies: 35
Views: 2952

Re: Best race valve material

tight stem to guide clearances will only exacerbate the offset seating issues and lead to quicker failures.
by bentvalves
Mon Feb 24, 2020 3:16 pm
Forum: Engine Tech
Topic: Oil in intake.
Replies: 20
Views: 2142

Re: Oil in intake.

perhaps the engine is being slightly overfilled with oil?

try 1/2 quart less, and see if it still pukes oil into the catch can.