I have an AE82 Seca with a 4AC engine.

 

Problem: Hot day- engine runs fine- stop engine and go shopping for 5-10 min- restart and drive- get about 1 km down road and vapour lock- heat soak into fuel pump i guess.

 

Firstly- very annoying

secondly- is it a common problem in this model?

 

Has any body come up with a permanent fix?

 

This is what i have done so far:

 

Replaced toyota's dumbass metal fuel line on carby with rubber and double insulated it with a second larger hose.

 

fitted a 9" redline aircleaner to allow more airflow and heat dissapation and a blocked off 99% of the pollution control crap.

 

These have improved the situation but not fixed it completely.

 

My plan is to fit an electric fuel pump and remove the mechanical one and then fit a set of headers and wrap with heat tape.

 

Has anyone else encountered the problem in this model and how did you fix it?

 

:D

Problem solvered! Fitted a quiet Elec pump under chassis-suspension cross brace Vicinity of fuel tank and an in-line filter. Wired up with Ign activated relay. Sounds so easy when you say it fast! No room for hands and lying under a car make the job take a little longer however... :y:

good work mate :y:

hope it is the fix :P

actually i found with this that i had same problem with my 4k engine

put in the 4a engine and had no problems since.

I did forget one thing. A fuel pressure regulator!

 

I asked the bloke at the shop if this pump would require one.

Reply:"Nah mate no need"

 

Wrong answer!

Wife rings me and says: Its flooded, wont start.

 

Sure enough- it fine when the engine is running but when you turn it off, it maintains the pressure in the line, forces the needle valve off the seat and floods the manifold while it not running. Then it wont start!

 

Took the Redline adjustable pressure reg off my KE30- as it is laid up with valve problems at the moment and fitted it to the AE82 and she works fine- problem fixed- again!

Finally been able to get the float level correct with the reg now too.

 

Now all i have to do is those pesky valve stem seals.... :y:

ok. noob moment. wats vapour lock, and what are the symptoms for it?

Wikipedia to the rescue http://en.wikipedia.org/wiki/Vapour_lock

My fuel pump shat itself so i brought a new fuelmiser 1 and i had the same problem (run for 5 mins then stall) and i found out that fuelmiser had a bad batch of diaphrams so i got another new pump and it was fine, You didnt do a pump change before this happened did you.

I don't think a FPR is going to solve your problem either. Ive had an electric pump on a webber before but it never flooded.