My Desmog Thread (5 Viewers)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

So that's what the call was about !!

That works for me !!

A tip for everyone: Find a buddy who has done this process and is willing to donate a few hours of their time to put you on the road to success ... Thanks Goodol !! We will have to desmog a few cold ones when we get this thing finished !!

:cheers:
 
Update on MPG

After the desmog...I got 15.5 mpg with 302 miles to a tank....second tank was 16.5 mpg 345 miles. Both reports are a mix of freeway and city driving....I mostly will get 17-18 just on the freeway i would predict. (stock tires no lift...soon to change:))

Thanks Jim for a great job on my carb!

:beer::beer::beer:
 
I'm new to the Cruiser ownership and have a few questions regarding my new rig. It's running pretty well, but due to the fact that it has an Eldelbrock carb, it looks a little different than the ones pictured here. The vent hose from the dizzy is just plugged. Can anyone tell me what things are wrong from the pic and the best way to correct it? Thanks.
IMG_0939.jpg
 
I finally got smart and just called CDan and got a new BVSV !! It will be well worth the money. Only a few dollars more than a used one !!:doh:
 
I'm new to the Cruiser ownership and have a few questions regarding my new rig. It's running pretty well, but due to the fact that it has an Eldelbrock carb, it looks a little different than the ones pictured here. The vent hose from the dizzy is just plugged. Can anyone tell me what things are wrong from the pic and the best way to correct it? Thanks.

You have a 4barrel edelbrock on there, with an offenhauser intake manifold. Those are pretty rare. If it runs well then I'd leave it alone.
 
Thanks. Not seeing the VCV routed to the air cleaner had me a little spooked. I know you are supposed to but I'm not certain where it would go? Being new to the LC club I'm certain I'll have a metric buttload of stupid questions. Maybe tomorrow I'll snap a ton of pics of the rig and let everyone pick it apart. I'm looking forward to the addiction.
 
Last edited:
I'm working on copying all the pictures, questions, and answers from this thread so I can do this without my computer sitting next to the truck.

When I get done I will post it up.

Frank
 
Thanks. Not seeing the VCV routed to the air cleaner had me a little spooked. I know you are supposed to but I'm not certain where it would go? Being new to the LC club I'm certain I'll have a metric buttload of stupid questions. Maybe tomorrow I'll snap a ton of pics of the rig and let everyone pick it apart. I'm looking forward to the addiction.

Ok, I see what you're saying. The VCV for the dizzy should be hooked up to air cleaner vacuum in order to continually flow air through it. Prevents corrosion. The PCV valve also needs to be hooked up to air cleaner vacuum to prevent the buildup of crankcase pressure.
 
I'm new to the Cruiser ownership and have a few questions regarding my new rig. It's running pretty well, but due to the fact that it has an Eldelbrock carb, it looks a little different than the ones pictured here. The vent hose from the dizzy is just plugged. Can anyone tell me what things are wrong from the pic and the best way to correct it? Thanks.


There are 2 vent hoses on the dissy cap. One is still connected to the dissy air filter in the firewall. The other is currently plugged. The plugged hose should be run up to the base of the air cleaner, so it will see some intake suction. A 90* barb elbow should be installed in the bottom of the air cleaner. Barb should be appx same size as fitting on dissy cap.

Where is the hose going from the top of the oil cooler? It looks like its heading for the brake booster?

There is an air inlet on the top of the valve cover, pointing up at the rear. It should be connected to the air cleaner base also. Failing that, a breather filter could be stuck on the VC fitting.

there are currently 2 vac hoses going to the dissy vac advance. Usually one is plenty. Also, I would be very surprised if both of those hose were ported vacuum. Check them both at idle, see if one is full time vacuum. Connect the one ported vac hose to the outer vac fitting, cap the other full time vac fitting at the carb. leave the unused dissy advance fitting open.
 
MY Desmog

So, with the help of a good friend and all 600+ posts on this thread has led me to the completion of MY Desmog. Since reading this thread, I have realized that there are many different verions of a desmog. Mine includes HAC and the BVSV. I wanted to post some pictures for everyone to look over.

IMG_3396.jpg

IMG_3399.jpg

IMG_3400.jpg

As you can see ... I was very inspired by Trapper50's desmog
IMG_3396.jpg
IMG_3399.jpg
IMG_3400.jpg
 
A few more

Here are a few more pics !!

IMG_3401.jpg

IMG_3402.jpg
IMG_3401.jpg
IMG_3402.jpg
 
Looks good.

Only 2 minor glitches I can see.
1. The AC idle up is missing? The AC vac can is there on the frt of the carb, with the yellow cap, but it connects to a vac solenoid usually mounted on the vertical inner fender (not on the emissions rack, cause it's not emissions related). None of the vac control stuff is visible in the photos.

2.There is a VCV in the hose at the dissy advancer. If it there for HAC, then it should be going to the HAC fitting, the outer one. In your case, the inner fitting (primary advance) should be coming direct from the advance fitting on the carb base.
 
Thanks Jim ... All systems go !!

I'm also ping-free !!
 
I just inherited what may be the most hack-tastic desmog yet. 87 fj60

Not a single thing left plugged in on the drivers fender, vacum leaks out the wazoo, and it was idling and surging between 1500-2000 RPM. (from vacum leaks?) Also air rail is just open where it used to connect to(smog pump?)

Is there any way to get this thing running halfway decent with no HAC, AC idle up, etc. for now?

I just ordered the proper air rail caps from Jim, so once all the leaks are fixed, is there a way to (even temporarily) run/plug the vacum lines with out ANY of the valves switches, etc?

Thanks!
 
Last edited:
Post up some pictures, so we can see the damage. It will also make it easier for folks to chime in.
 
Post up some pictures, so we can see the damage. It will also make it easier for folks to chime in.

I will try to grab some pics tonight. I moved some things after reading here and looking at the diagrams, no real difference, but still have some vacum leaks to fix.

PO had the one to the AC idle up coming off the 3 prong deal in the manifold, and the distributor advance coming off another one of those 3, and the 3rd broken off.

I jb welded a ball point pen tip in the broken spot, and put the dist to the port on the bottom of the carb(c) like in the pics. Then capped the ac idle up, and the other two ports on the manifold piece.

He also had the choke breaker run to the egr valve IIRC, so I moved it to the middle port on the carb like in the pics.

I told you guys it was bad...ha ha
 
Well, I know it can be daunting to read all 600+ posts, but you are doing the right thing by looking at the pictures here and the diagrams. Also, there are a lot of great minds (not me) that will point you in the right direction until you get it right !!
 
OK here are some pics.

Pretend the Air cleaner is on and the ports on it are plugged. (They are now).

What else can I do, to get this thing running better?
DSC02666.jpg
DSC02667.jpg
DSC02668.jpg
 
Missing lots of stuff...
DSC02667.jpg
 

Users who are viewing this thread

Back
Top Bottom