Recent content by fast 99
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Caster settings 1977 C10
When replacing front end parts I just put whatever shims were there back in. Was usually close enough to drive to an alignment shop. Factory tolerances were all over the place. Have seen vehicles with no shims and others with 3/8" plus. Really need to find a shop that specializes in...- fast 99
- Post #4
- Forum: Suspension, Steering & Brakes
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Have a great Snap On dealer finally
At one point we had Matco, Snap on, Mac and Cornwell all making weekly stops. I tried to buy a little from each but really only needed an occasional specialty tool. Moved to another shop only Snap on came by. He was a real good vendor. Went through my tools every once in a while and replaced... -
Brake Fluid Flush GMT800
Booster failing would cause hard high pedal, suspect master. -
Brake Fluid Flush GMT800
If the excessive travel developed with a full master here are a few possibilities. Am sure there are others. Rear shoes out of adjustment if drum brakes, as suggested swelling brake hose, bad master, loose front wheel bearings causing pad retraction, tight wheel cylinder or caliper. I would do a... -
86 C20 - Climate control not changing position - cable or vacuum operated?
85 has a vacuum supply. However most vehicles will default to defrost if vacuum is lost. -
Rust coating for fill neck
There is a commercial zinc dipping company here that will do small jobs. Items are dipped in rust remover [acid] first then plated. Might try one local to you. or Por 15?- fast 99
- Post #2
- Forum: Tech Discussion
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Help me identify the A/C system in our 1979 Scottsdale
In that era adding AC was quite common. There was a shop near ours that specialized in AC conversions. ARA is one that comes to mind. Appears they are still in business. https://arasourcing.com/- fast 99
- Post #3
- Forum: Electrical & Audio
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1990 TBI misfire/popping exhaust
Those distributor caps can crossfire internally. Sometimes it's not visible. We only use Delphi. More expensive by a lot. This is not a place to buy an economy part.- fast 99
- Post #6
- Forum: TBI & EFI Conversions
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Engine High Pitch Whining
Just to be safe I always bleed the air out. Others here say it isn't necessary. Have seen too many engines air lock. It's not much more work, either take stat out or remove a hose if on intake.- fast 99
- Post #8
- Forum: Tech Discussion
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Engine High Pitch Whining
Water would indicate a possible belt noise. If this is a serpentine belt drive they do not like misalignment. Most of the time it's the PS pulley. Shaft should be flush with pulley. If any "belt dressing" has been applied toss the belt in the garbage, clean all the pulleys with a wire brush...- fast 99
- Post #4
- Forum: Tech Discussion
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Engine High Pitch Whining
Remove belt, noise still there? If gone likely belt misalignment, pulley bearing or water pump. Way we diagnose noises like that is with a stethoscope. HF has them for less than $10. Another possibility is a cavitating PS pump. If that's the case fluid might be foamy.- fast 99
- Post #2
- Forum: Tech Discussion
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87' a/c brackets
If you need to purchase the brackets and compressor might [at least] want to investigate a newer design compressor. Looking back on the truck I have probably would have switched. New R4 compressor I bought took a dump in one season, leaks. Think the Sanden compressors are better in many ways. -
1987 Suburban R10 emissions problem due to modified intake
Hard to tell from the pictures but if TBI, with O2 sensor [not carbed], AIR system only pumps during warm up unless it has a dual bed cat. After system goes into closed loop, additional air injected into exhaust would bias the O2 causing incorrect fuel mix. What I am saying is it might be...- fast 99
- Post #11
- Forum: Tech Discussion
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1987 Suburban R10 emissions problem due to modified intake
Will help to know how clean the exhaust needs to be. What is the emissions limit and vehicles reading.- fast 99
- Post #7
- Forum: Tech Discussion
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Do I restore my AC or?
Many old compressor front seals were designed to leak. Recharges were a fairly common yearly maintenance item. Can't blame the backyard mechanic on this one. Back in the day R12 cost $1 a can. Customers wouldn't fix anything if system held a charge for the season. I stood in basically one place...- fast 99
- Post #16
- Forum: Tech Discussion
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