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Messages - Steve Wood

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1
General Buick Tech / Re: Donut between downpipe and elbow
« on: February 17 2020, 12:58:01 PM »
LOL, be very careful when you block off the EGR that you have sealed the opening off.  It can be difficult with a block off plate so use some high temp and glue it down and it might stay sealed

2
General Buick Tech / Re: Donut between downpipe and elbow
« on: February 17 2020, 10:05:48 AM »
I don't know if this is both parts, or not    https://www.highwaystars.net/gasket-turbo-exhaust-downpipe-gm-1262500/

Autozone and others sell the Walker donut replacement.

When I had a stock dp, I used to put a thin coat of high temp copper rtv on it before bolting it down

3
General Buick Tech / Re: TPS Adjustment
« on: February 16 2020, 09:53:51 AM »
Dribble some transmission fluid or top engine cleaner into the throttlebody while the engine is running at about 1200 rpm. Dribble it slowly enuf that it does not kill the engine.  Look for smoke coming out of the exhaust system pre-turbo including where the turbo mounts.  Be sure to examine the cross over pipe joints carefully.

Also, be sure the  connections to the outlet side of the maf sensor to the inlet side of the turbo and follow up on all the connections between the outlet of the turbo to the throttlebody are tight.

Check the egr valve and make sure it is not leaking around it's base and that the diaphragm does not have a hole in it.


Be sure to check to see if the intake bolts are tight.  I normally torque them to about 30 ft-lbs.

Normal maf range at 750 rpm is 4-6 so yours is fine.




4
General Buick Tech / Re: TPS Adjustment
« on: February 14 2020, 09:42:25 PM »
If you read the tps link above, all is explained. Tps has very little to do with performance.  Set the low  0.38 to 0.44.  set the high to 4.25 to 4.8




Of course, if you do not read the appropriate section in the link, then you will not check what is important.

5
General Buick Tech / Re: Winter Maintenance
« on: February 13 2020, 08:59:38 PM »
Progress!👍👍👍👍

6
General Buick Tech / Re: oil question
« on: February 13 2020, 08:49:38 PM »
Valve guides or seals, or from the turbo would be my first two guesses

7
General Buick Tech / Re: Winter Maintenance
« on: February 13 2020, 09:58:27 AM »
John, sounds like you have rear discs!  LOL

My experience is that 50% of the wheel cylinders one buys these days are faulty right out of the box so it's a good idea to buy three and hope to get two that actually work and not leak the first time you use the brakes.  I told this to my son last year but he did not listen.  He got to go back and buy a third one....

8
General Buick Tech / Re: oil question
« on: February 13 2020, 09:55:16 AM »
I believe that I read that if an oil is rated for 6000 miles, it should have used 50% of it's additive package at that time.  Some cars are rated for much higher mileage than that with specific oils being designated.

The types of additives used in a given oil have a lot to do with how soon and how dark the oils may turn. As I said earlier, only an oil analysis will determine if the oil is contaminated and with what.

An engine that was abused in it's past and which is full of sludge and other forms of "goo" will turn oil black almost instantly as the good oil detergents try to break it down.

An engine without a properly working pcv will turn the oil dark quickly.  I kinda doubt that most Buicks have properly working pcv's after we add breathers and such as they are sucking outside air thru the valves rather than crankcase air.  That leaves all the condensation vapor in the crankcase to be circulated and such vapors are very corrosive.  Again, only an oil analysis can tell what is going on once commonsense has been applied.

The famous 3000 mile change interval promoted by dealers, etc. is the easiest way to make money in a shop outside of the usual blatant robberies performed by shops.

9
General Buick Tech / Re: Vacuum Master Cylinder
« on: February 09 2020, 06:09:55 PM »
I must have been thinking of the older style mc.

10
General Buick Tech / Re: Vacuum Master Cylinder
« on: February 08 2020, 07:40:13 PM »
the fitting with the larger tube (also has the pigtail closest to to the master cylinder) goes to the front.  I forgot these units are hard to tell which reservoir is largest.  Been working on mopars too much, I guess :)


this is probably what Phil has been trying to tell us LOL

11
General Buick Tech / Re: Vacuum Master Cylinder
« on: February 08 2020, 06:55:05 PM »
I have done several and everything fit with no mods. Let me go out to the shop and actually look at a car

12
General Buick Tech / Re: Vacuum Master Cylinder
« on: February 06 2020, 05:10:30 PM »
the front disc brake calipers require more fluid for operation than do the rear drum brakes.  this means the larger m/c reservoir is meant to be connected to the front brakes.


On our cars, it appears that the front bowl is for the rears and the rear bowl is the rears...as noted further down this page.  It's hard to tell on our cars' reservoir which is the largest....sor ry for the confusion created by my initial post.

13
General Buick Tech / Re: oil question
« on: February 02 2020, 09:22:58 AM »
)Another "Me, too!" but Earl is not the only guy that I know that swears by it :)

14
General Buick Tech / Re: oil question
« on: February 01 2020, 07:08:33 PM »
Me, too!  😂

15
IHADAV8 Playground / Re: Car magazines toast- sad
« on: January 31 2020, 05:00:36 PM »
sad 

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