Desmog components (4 Viewers)

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

cut the egr pipe ,cap the egr pipe with a bolt and some jb weld .. Then cut the egr pipe off short where it goes in the intake. Leave the small pipe this will be used for your pcv hose . search "my desmog thread " its all in there 40 whole pages
 
MAF makes a part to replace this (part #25601-INPLATE); using this part will (I believe) lose the mounting point for the carb cooling fan sensor

found the above from jim's desmog download, new question is what have others done to keep the function of the carb cooling fan??
 
Noah, the PCV plate needs to stay on the side of the manifold. Cut off the EGR pipe and weld a plug in it, as seen here:
EGR removal - 83 2F desmog - Land Cruiser Tech from IH8MUD.com

Grounding the fan sensor wire will make the fan run for the max time, every single time the key is turned off. It's a good temporary repair for hot weather cruising, but puts a lot of wear on the fan & batt for daily use.
 
FJ40Jim said:
Noah, the PCV plate needs to stay on the side of the manifold. Cut off the EGR pipe and weld a plug in it, as seen here:
EGR removal - 83 2F desmog - Land Cruiser Tech from IH8MUD.com

Grounding the fan sensor wire will make the fan run for the max time, every single time the key is turned off. It's a good temporary repair for hot weather cruising, but puts a lot of wear on the fan & batt for daily use.
Click to expand...

Jim, not sure I follow you? why does the stock pcv plate have to be used on the side of the intake manifold? It would seem to me the man a fre intake manifold plate is a nicer, cleaner solution that would work just fine?

Noah
 
1973Guppie said:
Jim, not sure I follow you? why does the stock pcv plate have to be used on the side of the intake manifold? It would seem to me the man a fre intake manifold plate is a nicer, cleaner solution that would work just fine?

Noah
Click to expand...

Guppie--Making the plate from the existing stuff on the motor is a 5 minute job and looks stock. Why would you bother with MAFs solution?

Look at Jim's posts on this. That the fitting off the manifold, cut off the EGR part of it and weld a small bit of metal over the hole. It preserves the PCV "intake" and fits like factory. Literally 5 minutes of work and done for the rest of time.

The other plate on the manifold is trivially easy to make, but Jim's blockoff that he has for sale is super trick. I wish I had seen that before I made mine. I may still get one from him just because it is so cool.
 
drew, while I appreciate your opinion, my opinion is that the manafre plate is a much cleaner overall solution, which solves the same problem. If we are talking about asthetics then personal opinions always come into play. I was wondering why or looking for data on why keeping the stock solution is a better one functionally. I do agree that jims lower blockoff plate for the exhaust manifold is a cleaner solution as it has the thicker round flange that will help keep the gasket from being blown out over time.

Noah
 
Noah, now I see what you're talking about. I didn't know MAF had figured out that PCV is a good thing. Last I saw, they were selling a flat plate to completely block off the PCV/EGR spot. The plate w/ a PCV port is a good thing.

FWIW, the slight advantage to the 79-later PCV tube is it gets the hose farther away from exhaust heat. The 78-earlier hose is always rock hard and cracked where it goes onto the 90* nipple because it is just inches away from the hot exh manifold. By extending the tube up above the manifolds, it gets the hose pointed more toward the PCV valve, and gets it farther from the exh.
 
1973Guppie said:
drew, while I appreciate your opinion, my opinion is that the manafre plate is a much cleaner overall solution, which solves the same problem. If we are talking about asthetics then personal opinions always come into play. I was wondering why or looking for data on why keeping the stock solution is a better one functionally. I do agree that jims lower blockoff plate for the exhaust manifold is a cleaner solution as it has the thicker round flange that will help keep the gasket from being blown out over time.

Noah
Click to expand...

Noah,
This is what i did as per my conversation with Jim in his garage about PCV.
I had a buddy stainless TIG a cap over the tube so i could still utilize the stock pcv set up.

006-vi.jpg
 
You must log in or register to reply here.

Users who are viewing this thread

Total: 5 (members: 0, guests: 5)

Share this page

Back
Top Bottom