Garage > Mechanicals

Advice Preparing 4 Restart

(1/8) > >>

TNNBENZ:
Well after almost a year I am close to a restart of a 1977 4.5 !!!
I have acquired many 1979 fuel system parts as suggested in M117 manual. I plan to clean existing parts on the car that I did not upgrade.
   I have removed the air meter housing & fuel distributor.  Purchased a kit to rebuild cast iron distributor. After buying kit I found a good deal on an 1979 alloy distributor with a metering housing. Neither distributors fuel piston moves ! I read distributor is not rebuildable if piston is stuck.!!! I do not believe that !!! I think it is the ethanol in the gas gummed up, all it needs is a good cleaning. Is this logic correct ?
Have kit for current WUR. After I bought that kit i found another good deal on a 1979 WUR.
Bought new complete fuel system under car...fuel pump, strainer, etc under car.
   The car was last tagged I think in 2002. I removed a valve cover & chain seems tight enough, & no oil sludge ! Looks very well maintained. Best I can tell the plastic clip parts seem ok. Anti freeze looks clear and good to 30 or -30 I cannot remember. Plugs look new. Tires tread look new except dry rotted. Mucho expensive tires when new. Car has 90,000 miles on it. Someone either serviced this car recently trying to get it to run or it was freshly serviced & then parked for some reason. 
Advice is needed, should I clean & rebuild current parts and hope it starts. Or clean & use the 1979 parts. My thinking is, oh I for got I removed the gas tank & it had lots of dried fuel. Looked inside with a scope & my friend did not see any rust, but I could not tell because the dried  gas is rust colored and also stick to the sides. I do think I used a magnet on the dried stuff that came out of the tank & it did not stick to the magnet. My thinking is if I start it now there may be trash still in the tank or fuel lines that will clog up my new injectors & strainer etc... and freshly cleaned upgraded parts. I need to blow out the fuel lines. Or since car seems to be sorta well maintained  many moons ago should I go for it now.
   I am sure I left out other points I want to include but I will pause for now.
Any and all help is extremely wanted & appreciated.
This forum is greatly responsible for me making it this far with my cherished RESCUE/hooptie  ha  ;)
I THANK-YOU ALL GREATLY....... :)  :)  :)
   



Randys01:

Do I take it that you have bought a new FD and WUR but yet to fit them?
..so we are working with the existent system?
So long as the baffle moves thru it's range without  any hesitation we should be good to go.
Putting anew FD on is not a simple case of plug n play. Combined with a new WUR could be anybody's guess.

Before you start it, disconnect the main fuel feed to the distributor. Disconnect the blue electrical fuel connector on the top of the FD. Turn on the on the ignition: get a jug and collect the fuel. Do this about 5 times to ensure that nothing is coming thru but fuel. All clear? Well then you know that all the back of shop is OK. It generally is...the real nuisance lies ahead!

Remove the fitting in the FD that the fuel feed connects to. There is a small filter....well sometimes there is. Take it out if fitted and reverse clean it. Put it back together.
Now go to the WUR.
Uncouple the feed line and  in the WUR you will see another fine filter. Do what is necessary to clean it....if it need cleaning.

This is not an absolute answer but it it will establish a couple more things for you.

Good luck.

TNNBENZ:

--- Quote from: Randys01 on 07 October 2021, 11:36 PM ---
Do I take it that you have bought a new FD and WUR but yet to fit them?
..so we are working with the existent system?
So long as the baffle moves thru it's range without  any hesitation we should be good to go.
Putting anew FD on is not a simple case of plug n play. Combined with a new WUR could be anybody's guess.

Before you start it, disconnect the main fuel feed to the distributor. Disconnect the blue electrical fuel connector on the top of the FD. Turn on the on the ignition: get a jug and collect the fuel. Do this about 5 times to ensure that nothing is coming thru but fuel. All clear? Well then you know that all the back of shop is OK. It generally is...the real nuisance lies ahead!

Remove the fitting in the FD that the fuel feed connects to. There is a small filter....well sometimes there is. Take it out if fitted and reverse clean it. Put it back together.
Now go to the WUR.
Uncouple the feed line and  in the WUR you will see another fine filter. Do what is necessary to clean it....if it need cleaning.

This is not an absolute answer but it it will establish a couple more things for you.

Good luck.

--- End quote ---
Much thanks Randy ~~~
   The only NEW parts I have are injectors, Pump, Accumulator, filter, hoses, strainer, wires & plugs, air cleaner/intake seal, probably will  buy injector holders & seals.
I have rebuild kits for cast iron distributor, 1977 WUR,
I found the filter in fuel distributor fitting but do not know how to remove it to clean it !!! 
Your info about running the pump is great to learn... Thank-you
   A big concern is I need a gasket for between the meter housing &  lower meter housing part.  More importantly there was lots of carbon build up & maybe hood insulation present when I removed the metering housing, I cleaned it but am worried what lies below.........   :o  I would like to clean down farther down below but lot of work I think.........
   What about the stuck fuel distributor piston ? Is it ruined ? It appears to be stuck solid...........
I am thinking of using the 1977 parts to just get car started and see if there are any major problems. Then after all rough running issues are HOPEFULLY FIXED. Then install the supposedly improve 1979 parts....... I was hoping to get everything installed now to save having to remove  & reinstall parts........I still may use the 1979 parts I don't know.........ha
The baffle you mention, is that the air metering plate? What baffle are you referring to ?
   I plan to adjust the air plate height properly. Should I lube the roller inside the housing. If so what lube should I use ?
Anyway, keep wishing me luck.......ha

rumb:
You can find plenty of people that have rebuilt their Fuel Distributor and WUR.  I would offer .02 that you send them to http://www.cisflowtech.com/ for rebuild, calibration and testing.  That way they come back fully ready to work properly. These 2 parts are the heart of the system.

TNNBENZ:

--- Quote from: rumb on 08 October 2021, 09:42 AM ---You can find plenty of people that have rebuilt their Fuel Distributor and WUR.  I would offer .02 that you send them to http://www.cisflowtech.com/ for rebuild, calibration and testing.  That way they come back fully ready to work properly. These 2 parts are the heart of the system.

--- End quote ---
Yes rumb.............but I am gonna give it try. I have studied many, many hours, & watched several videos of how to rebuild them...............I cannot afford the rebuild prices........Thank you for the info......... :)
Do you think the stuck fuel piston caused any harm ???  Is it called a piston.........I forgot the proper name..........

Navigation

[0] Message Index

[#] Next page

Go to full version