Question about 1986 Chevrolet Monte Carlo

1 Answer

Connecting vaccum i need to know where the vaccum goes and what is the timing on the engine 305 of my monte carlo 1986 if anybody are some information please let me know thanks

Posted by on

  • Joshua Schofield May 11, 2010

    6 degrees BTDC, and there are a whole buch of vacuum lines so you need to be a little more specific



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Chevrolet Master
  • 6,982 Answers

I don't remember factory specs but most chevy v8's like about 8 to 12 degrees advance (BTC) Depending upon the fuel quality, you may need to pull back on that a bit. Vacuum hose is also optional as to position. I like using a carb port that is above the throttle plate so advance comes in later. If the engine "lays down" on acceleration, move the hose to any port on the baseplate or manifold that has full vacuum at idle. These are not factory settings but are the ones I used as routine when setting up those engines, when emissions equipment and inspections were not at issue. (but even so, most always passed inspection anyhow.)

Posted on Aug 27, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My 1986 monte carlo wont stay running. It starts up and stops running when i push on the gas it loses power then stalls. I changed the fuel filter, new plugs and wires. i took off my cat to see if it was...

I know you say your timing seems fine but there is not too much that can cause this to happen with theses older car. My first thought was the timing chain might have jumped a tooth causing your cam timing to be off. This is like the only thing I have seen cause this problem with a 305 or 350 I would be checking the timing marks under the water pump to make sure it did not jump they are super easy to get to on theses cars.

Mar 17, 2011 | 1986 Chevrolet Monte Carlo

1 Answer

I have an 1986 Monte carlo with a 4.3 fuel injected V6. Changing to a 305 V8 with carb. Also would like to change to factory instrumentation in the dash. Need a wiring diagram as to what needs to be... has auto manuals that you can download for free,but it sounds like you will need a shop tech. manual for both engines,recommend you download those manuals at for a price. you'll find that some manuals cost more than others,but remember,the shop manuals go more indepth than regular chilton manuals. hope that i've assisted you! thank you for choosing

Jan 23, 2011 | 1986 Chevrolet Monte Carlo

1 Answer

How do you know when you need a new timing belt for a 1986 monte carlo

I dont belive this 1986 monte carlo has a timing belt, this car uses the timing chain, the timing chain is good for 150,000 miles, the to check it for wear would be to remove the distributor cap turn crank with a wrench to right mark rotor then slowly turn crank to the left and watch how far the crank turns before the rotor moves, this is how to check the slack on the chain if the crank moves more than 10 degrees then replace the chain, these cars can go 150.000 miles before the chain is needed, and some go more. hope this helps.

Sep 21, 2010 | 1996 Chevrolet Monte Carlo

1 Answer

I have a 305 engine from a 1979 monte carlo and belts sqeaul

do you have the right belt. is the belt flush across with the top of the groove in the pulley. it should fit down in the pulley so that it is gripping on three sides of the belt.

Jan 24, 2010 | 1983 Chevrolet Monte Carlo

1 Answer

Where do I put power steering fluid, brake fluid and oil in a 1986 Chev Monte Carlo

The power steering resivore is on the left side ( driver side ) of the engine there is a cap for the pump , the brake fluid goes into the master cylinder remove the cap if it needs fluid the oil is either a rubber ( press on pull off ) or metal cap( twist on and off) located on one side of the engines valve covers on most chevrolets driver side as well . never over fill a fluid level .

Aug 27, 2009 | 1986 Chevrolet Monte Carlo

1 Answer

Cannot get water pump on 305 v-8 Monte Carlo to loosen from engine

There is only 4 bolts that hold the pump to the block If you have the 4 bolts removed then hit the hub that the water pump pulley goes on with a hammer. some times you may have to hit it 3 or 4 good whacks. Hope this helps.

May 21, 2009 | 1987 Chevrolet Monte Carlo

1 Answer

Hello, My Monte Carlo will not stay running. I

Its called a pcv valve (positive crankcase valve) what year monte? The valve is for emissions you wont damage the engine but you will notice it idles higher and goes through more gas. you really need to get to the route of the problem. look for broken vaccum lines, engine light( is it on while car is running) the more you can find out the better you'll do getting to the bottom of it.

Apr 25, 2009 | 1998 Chevrolet Monte Carlo

1 Answer

Wiring diagram

Do you have any connectors left intact? All you should need is the alternator power, grd, starter, distributor power, advance

Jul 23, 2008 | 1986 Chevrolet Monte Carlo

Not finding what you are looking for?
1986 Chevrolet Monte Carlo Logo

116 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

81423 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22359 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides