IDI injector question

Reply Subscribe

Thread Tools

Search this Thread

Oct 1, 2013 | 12:23 PM

tigerblood

Thread Starter

Junior User

Joined: Mar 2013

Posts: 62

Likes: 0

IDI injector question

I found an injector in my 1990 7.3 IDI diesel leaking today, can I replace just one injector if only one is leaking fuel or do they all need to be replaced?

Oct 1, 2013 | 01:17 PM

jas88

Lead Driver

Joined: Feb 2002

Posts: 7,969

Likes: 595

From: Greater Austin, Texas

It's OK to replace just one IMO.

Oct 1, 2013 | 01:17 PM

jas88

Lead Driver

Joined: Feb 2002

Posts: 7,969

Likes: 595

From: Greater Austin, Texas

It's OK to replace just one IMO.

Oct 1, 2013 | 01:25 PM

tigerblood

Thread Starter

Junior User

Joined: Mar 2013

Posts: 62

Likes: 0

Quote:

Originally Posted by jas88

It's OK to replace just one IMO.

This is a truck I got last weekend and am planning to sell soon, do you think replacing just the o rings on the injector would stop the leak, I took it out and sealed the threads to the leak has to be because of the o rings or the piece the fuel likes connect to

Oct 1, 2013 | 01:49 PM

jas88

Lead Driver

Joined: Feb 2002

Posts: 7,969

Likes: 595

From: Greater Austin, Texas

Oh, so you mean leaking externally? Usually, when someone says "leaking injector" I think of internally leaking, which will cause a knock. Yes, I would try replacing the o-rings and return lines first. That is a very common maintenance item on the IDI, and you can buy a kit to do it all on eBay:

http://www.ebay.com/itm/Ford-International-7-3L-IDI-Diesel-Injector-Installation-kit-91-94-/221209309409?pt=Motors_Car_Truck_Parts_Accessories&hash=item33811a30e1&vxp=mtr#ht_1864wt_934

Oct 1, 2013 | 03:48 PM

tigerblood

Thread Starter

Junior User

Joined: Mar 2013

Posts: 62

Likes: 0

yep, leaking externaly on top of the motor,somewhere between the threads that screw into the block and the hard line on top of the injector, ill give o rings aq shot first, thanks for the help