IHADAV8.com - Turbo Buick Tech, and Nonsense
Tech Area => General Buick Tech => Topic started by: Hill1430 on September 21 2022, 09:39:00 PM
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Anyone have a suggestion on how to fix this?
Also suggestion on where to find a vacuum check valve for the larger vacuum line to the brake booster on a vacuum brake conversion?
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The check valve is a pretty common item and I have bought them at the parts store. I assume you are talking about the one that plugs into the booster? that is the only one in the line from the intake to the booster.
I am not sure what the picture is but my best guess is that it is the vacuum fitting to the heater control valve on the small hard plastic hose, and/or the one that goes on the other end at the firewall? I have never seen one for sale, but I have taken a short piece of vacuum hose, put rtv or some other form of "glue" on the end of the plastic line, and then slipped the vacuum hose over it...then a small zip tie around it seals the deal.
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Maybe this?
https://www.autozone.com/fittings-and-hose-line-connectors/vacuum-connector-and-tubing/p/dorman-autograde-soft-vacuum-tubing-connector-assortment-6-piece/426019_0_0
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That actually goes to the passenger side fender. I will try the Autozone kit. All the parts stores I have tried do not have a check valve bigger than 1/8”.
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I'm not aware of a check valve on intercooled cars on that side. Map sensor is the only thing in over there
I am confused, I think, but this is the only check valve for the brake booster https://www.autozone.com/brakes-and-traction-control/power-brake-booster-check-valve?filterByKeyWor d=brake+booster+check+valve&fromString=search&isIgnoreVehicl e=false&searchText=brake+booster+check+valve
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Digital dash cars have that hose connection on a hobbs style pressure switch on the inner passenger fender. Its for the turbo power lights on the dashboard. The useless Yellow/Orange lights I have not looked at in 30 years at least
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That actually goes to the passenger side fender. I will try the Autozone kit. All the parts stores I have tried do not have a check valve bigger than 1/8”.
Check the replacement frequently. They don't last near as well as the OEM part.
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Guess some cars had one. https://shop.advanceautoparts.com/p/dorman-help-power-brake-filter-80195/5707706-P
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Ok, sorry for the confusion. The original picture is the rubber connector from the hard plastic line to the MAP sensor. It is cracked and I want to replace it somehow.
The second question, I converted to vacuum brakes. I have seen pictures of some cars that have a check valve in the larger diameter vacuum hose from the plenum to the brake booster. I am having a problem finding a check valve for a larger diameter hose. Do I even need one there? Below is a picture.
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https://smile.amazon.com/EVIL-ENERGY-Return-Petrol-Aluminium/dp/B08JJ1F79D/ref=sr_1_3?keywords=3%2F8+check+valve&qid=1663898279&sprefix=3%2F8+check%2Caps%2C167&sr=8-3 - check valve. Probably a 3/8 but they have them larger
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Thanks, that’s what I’m looking for.
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I have vacuum assist master cylinder from a Monte Carlo. The check valve was included. It is where the vacuum hose connects at the master.
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That’s what I have figured out.