To clean or not to clean injectors?

[347strokin]

Well...I'm getting really close to firing up this LS3!

I've read in more than one place to have the injectors cleaned out before even attempting to start your motor if it's been sitting for any length of time. Mine hasn't run for at least a year that I know of.

What do you guys think? Just give er or what? Lol

Also, is there anything else I should do before my first start on this used motor?

Thanks!

 

[Camar068]

I'd clean them. Plenty of video's on youtube. If you have any go bad, you might look at getting the larger ones off ebay. Dougbert found some for $60 for the set which is a steal. Link below. If you use the larger injectors, you'll need to change to tune to reflect that.

http://www.ebay.com/itm/SET-OF-8-OE...e=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

Did you pressure fill the oil? There's plenty of link on youtube for that as well. Basically you pressurize a container that has oil in it, and put it into the port on the drivers side of the block. I haven't done it yet, but apparently it pushes oil through all the passages.

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[1987 GMC Jimmy]

I agree. Clean 'em. In the TBI world, people send them to WitchHunter. They clean and flow test, which is good to know that they're doing right, and you more than likely save the injectors and $$$.

 

[HotRodPC]

If most of the LS swapping guys are making the suggestion and they all agree, then I think I'd do it. There's probably something to it or they wouldn't suggest it. JMO


Afterall, if you read it on the internet then you know it's true.

 

[347strokin]

I'd clean them. Plenty of video's on youtube. If you have any go bad, you might look at getting the larger ones off ebay. Dougbert found some for $60 for the set which is a steal. Link below. If you use the larger injectors, you'll need to change to tune to reflect that.

http://www.ebay.com/itm/SET-OF-8-OEM-NEW-Delphi-Fuel-Injector-6-0L-GM-12613412/132202083540?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

Did you pressure fill the oil? There's plenty of link on youtube for that as well. Basically you pressurize a container that has oil in it, and put it into the port on the drivers side of the block. I haven't done it yet, but apparently it pushes oil through all the passages.

xc_hide_links_from_guests_guests_error_hide_media

Wicked, thanks for the detailed info and the link!

 

[347strokin]

I agree. Clean 'em. In the TBI world, people send them to WitchHunter. They clean and flow test, which is good to know that they're doing right, and you more than likely save the injectors and $$$.

Appreciate the info! Thanks.

 

[347strokin]

If most of the LS swapping guys are making the suggestion and they all agree, then I think I'd do it. There's probably something to it or they wouldn't suggest it. JMO


Afterall, if you read it on the internet then you know it's true.

Agreed.

 

[Camar068]

Can't believe I didnt come back here to add this. You can get a small ultrasonic cleaner on Amazon for $28. I used it on my injectors, boy were they dirty.

https://www.amazon.com/gp/product/B0142G8ONC/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

 

[yevgenievich]

At lest cycle them nanually as they tend to stick

 

[Jrgunn5150]

I disagree. I picked my last LS up off the ground at the junkyard on 1/2 off day, opened it, looked around, reused every single bolt and gasket and put it in and did burnouts.

I've never cleaned an injector in my life, and have never stuck a stock one. I tend to keep thing's as simple as possible.

 

[yevgenievich]

It worked out for you, but on two ls swaps in my case I had a couple of stuck injectors. And also on a 7.4 vortec. It is worth checking. They might just unstick after idling for a bit or they might not.

I disagree. I picked my last LS up off the ground at the junkyard on 1/2 off day, opened it, looked around, reused every single bolt and gasket and put it in and did burnouts.

I've never cleaned an injector in my life, and have never stuck a stock one. I tend to keep thing's as simple as possible.

 

[74 Shortbed]

Can't believe I didnt come back here to add this. You can get a small ultrasonic cleaner on Amazon for $28. I used it on my injectors, boy were they dirty.

https://www.amazon.com/gp/product/B0142G8ONC/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

Ultrasonic cleaners are awesome I have a 5gal unit, it's amazing how a grody ole carburetor looks after 20 minutes in the cleaner..