IHADAV8.com - Turbo Buick Tech, and Nonsense

Tech Area => General Buick Tech => Topic started by: larrym on November 11 2013, 07:13:28 PM

Title: NA 109
Post by: larrym on November 11 2013, 07:13:28 PM

Just picked up a 109 out of a 87 cutlass, stripped it down to a bare block.
Found 2 dot rods, all the pistons pushed out the top NP. bearings showed some wear as do the cylinder walls.
What else is worth saving other than the heads, rods and front cover?

Title: Re: NA 109
Post by: TexasT on November 11 2013, 08:00:24 PM

four barrel intake?

Title: Re: NA 109
Post by: earlbrown on November 11 2013, 09:33:21 PM

See if the crank is the more desirable 'turbo' crank.

Title: Re: NA 109
Post by: larrym on November 11 2013, 11:56:48 PM

It's a 2 barrel and no rolled fillets.

Title: Re: NA 109
Post by: earlbrown on November 12 2013, 01:05:31 AM

Pretty much block, rods and misc fasteners.   The rods are supposed to have lesser bolts in them, but I've never heard of one coming apart without the factor SPS units though.

Title: Re: NA 109
Post by: larrym on November 12 2013, 02:17:59 PM

Is the oil pick up the same?
I see no baffle in the pan

Title: Re: NA 109
Post by: Charlief1 on November 12 2013, 02:51:26 PM

Pick up is the same and you can weld a baffle in the pan.

Title: Re: NA 109
Post by: larrym on November 12 2013, 07:16:30 PM

Lol!
You would not be saying that Charlie if you had seen any of my welding job!!!!

Title: Re: NA 109
Post by: earlbrown on November 12 2013, 07:55:49 PM

I've heard it's pretty easy to make a baffle out of a VCR case.   You can even see the 'Y' from 'SONY' on my pan. lol

Title: Re: NA 109
Post by: Charlief1 on November 12 2013, 09:02:35 PM

Now I know what I can use the broken ones I'm about to throw away Earl. :cheers:

Title: Re: NA 109
Post by: earlbrown on November 13 2013, 01:34:12 AM

You've seen it before...

http://www.turbobuicks.com/forums/buick-v6-turbo-tech/88129-day-life-earl-2.html#post788883 (http://www.turbobuicks.com/forums/buick-v6-turbo-tech/88129-day-life-earl-2.html#post788883)

I wasn't kidding about the ''Y'   :)'

Title: Re: NA 109
Post by: larrym on November 14 2013, 01:13:58 PM

Is the balancer of any use? Could it be used on an internally balanced crank?

Title: Re: NA 109
Post by: earlbrown on November 14 2013, 01:16:51 PM

Does it have the fins on the back to trigger a crank sensor?

Title: Re: NA 109
Post by: Charlief1 on November 14 2013, 01:21:08 PM

If it was a injected engine then it would have the trigger on it. If it doesn't then it would work for any NA or 83 and earlier turbo Buick. It can be made into a neutral balance but will need the trigger put on it.

Title: Re: NA 109
Post by: larrym on November 14 2013, 02:52:28 PM

Thanks gents I was talking to a buddy he just picked up a internally balanced crank he might try to use it is there any advantage to a trigger with more fins? would that not just confuse the ECU?

Title: Re: NA 109
Post by: larrym on December 22 2013, 08:11:04 PM

The flex plates on a NA motor are the same correct?

Title: Re: NA 109
Post by: Charlief1 on December 22 2013, 08:16:13 PM

The NA flexplate will bolt on and should work, but isn't built as heavy as the turbo one. The turbo one even has a different part number.

Title: Re: NA 109
Post by: Steve Wood on December 22 2013, 10:02:18 PM

cannot remember if I used this one  ATP Part # Z153 or a Pioneer a couple years ago

Title: Re: NA 109
Post by: larrym on December 22 2013, 11:21:21 PM

Thanks gents!

Title: Re: NA 109
Post by: tb3 on December 29 2013, 11:33:18 PM

I never did understand the turbo and na flywheel differancees.  I know guys that have been running na ones installed for years and no issues.
I also wonder if it can be proven in the field that a turbo crank is indeed stronger than a na crank. 

Title: Re: NA 109
Post by: Charlief1 on December 30 2013, 01:43:39 AM

The turbo flexplate is slightly thicker to hold up to the extra power. As far as the crank goes, compressing the metal allows for a thicker density which makes it stronger in the weakest location.

Title: Re: NA 109
Post by: tb3 on January 02 2014, 11:38:28 AM

good info charlie!
so the rolls on the journals are indeed compressed, and not cut?

Title: Re: NA 109
Post by: Charlief1 on January 02 2014, 01:13:37 PM

That's why it's called "rolled fillets" Aaron. The 301T had the same thing done to the cranks.

Title: Re: NA 109
Post by: tb3 on January 02 2014, 10:42:09 PM

thanks charlie.  for some reason I was thinking "cut" because of the word "fillet".
makes sense to me now :cheers: