Fixing vacuum leaks - injector and distributor (1 Viewer)

[CharlieS]

I just smoke tested my 80 and found two spots where I have leaks to address.

First, I have a pretty good flow of smoke coming from around the fuel injector on cylinder 3. I imagine there is an o-ring on the outside of the injector that has probably failed. As best I can tell, these are original factory injectors with 300k on them. Would it make sense to preventatively replace all of them while I have it all apart?

Second, I am getting the tiniest wisp of smoke from the area where the distributor meets the block. I replaced the distributor o-ring last summer. I suppose there is always the possibility that I damaged it upon reinstallation, so I'll take the distributor off and check. If that isn't it, are there any other seals in that assembly that I can service?

Thanks for any insight you can share.

 

[mudgudgeon]

I would definitely replace all the seals and orings on the injectors.
99% of the work is getting manifolds off, and the fuel rail off.
Chances are, you'll dislodge injectors once you get down to them, and if the seals are all original, they'll be hard and rigid

 

[CharlieS]

I think I may send them to RC engineering to get them serviced, which includes cleaning, balancing and new seals.

 

[CharlieS]

I got the injectors out. All the seals were as hard as rock. Not surprising, in retrospect. Sending them out today to be cleaned and rebuilt.

 

[tlc1995]

I got the injectors out. All the seals were as hard as rock. Not surprising, in retrospect. Sending them out today to be cleaned and rebuilt.

View attachment 3570011

Did they tell You how long it will take to get the injectors serviced and returned ? Just curious

 

[CharlieS]

I am using Advanced Injector. He says to call before sending to check turnaround time. As of yesterday his current turnaround time is two days, plus time in transit. I expect it to be about a week round trip.

I did some searching and asked around, and Advanced Injector are who Gordon from Witch Hunter recommended when he closed up shop. He told me that he does a lot of land cruiser injectors.

 

[tlc1995]

I am using Advanced Injector. He says to call before sending to check turnaround time. As of yesterday his current turnaround time is two days, plus time in transit. I expect it to be about a week round trip.

I did some searching and asked around, and Advanced Injector are who Gordon from Witch Hunter recommended when he closed up shop. He told me that he does a lot of land cruiser injectors.

Thank You.

 

[Augustiron]

Did you break any of the wiring harness connectors at the injectors?
It would be a miracle if you didn't.

 

[CharlieS]

Did you break any of the wiring harness connectors at the injectors?
It would be a miracle if you didn't.

Haha... Yes, I broke the one on the #6 injector. Surprisingly the other 5 survived. They're all brittle though.

Fortunately I bought new connectors from Ballinger Motorsports that I plan to use to replace the old heat damaged ones.

 

[truthdetector]

I broke the nub off of 3 of my injectors when I removed them. Didn't notice until I got them back from WitchHunter and went to install them. So I have 3 new injectors and 3 originals.

 

[CharlieS]

Sorry, I misunderstood. I broke one harness side clip. None of the injectors were damaged.