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Old 11-25-2020, 10:07 AM   #1
totallyKei
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Default B234 sounds spooky

Hey guys. I managed to pick myself up a minty 90' 16 valve 745 with an m46. I definitely love it. I didn't notice it when I picked it up, but I definitely think it has some piston slap action. It's got a good chunk of miles. (Great oil pressure at idle though, 60psi on the highway) What would you guys do? Bore and find resized pistons?
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Old 11-25-2020, 11:57 AM   #2
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Piston slap isn't hurting anything. If compression is good and not consuming oil I'd just turn the radio up until she warms up.
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Old 11-25-2020, 12:36 PM   #3
dalek
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There are slaps and slaps
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Old 11-25-2020, 12:42 PM   #4
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Liquimoly Leichtlauf or synthoil is the only oil I’ve found that will reduce the cold start piston slap on redblock engines.
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Old 11-25-2020, 01:08 PM   #5
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Reblocks are prone to piston slap and it's usually nothing to be too concerned of.

Quote:
Originally Posted by culberro View Post
Liquimoly Leichtlauf or synthoil is the only oil I’ve found that will reduce the cold start piston slap on redblock engines.
+1
I also use Liqui Moly oil and noticed the same thing after using Catrol Magnatec for a while.
I use this one in my B230FT:
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Old 11-25-2020, 03:26 PM   #6
totallyKei
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You guys are great, thanks for putting my mind at ease. Was idling it during my break today an was stressing myself out. I'm used to BXX motors, and the big end guided stuff.
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Old 11-27-2020, 07:08 PM   #7
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Was this the car in PA (I think)? Glad someone here bought it!

Or seeing as you’re new here, glad you found this site!
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Old 12-09-2020, 09:52 AM   #8
totallyKei
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Quote:
Originally Posted by bmdubya1198 View Post
Was this the car in PA (I think)? Glad someone here bought it!

Or seeing as you’re new here, glad you found this site!
It was. I was super surprised. I've been enjoying it a ton, saw it and had to have it.
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Old 12-09-2020, 10:11 AM   #9
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Throw some DELO 15-40 in there and send it partner.
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Old 12-09-2020, 12:19 PM   #10
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Quote:
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It was. I was super surprised. I've been enjoying it a ton, saw it and had to have it.
Nice find! If I was closer, I would have totally grabbed it. Enjoy!
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