| Author |
Message |
Jeff Green (Carguy)
Member
Username: Carguy
Post Number: 511
Registered: 10-2002
| | Posted on Saturday, September 13, 2003 - 6:34 am: | |
It's comforting to know that I'm not the "only" one up to my elbows in a TR. I can see lots of exchanges in information in the future, to the benifit of both of us. I'll do whatever I can to help Henry, just give me a shout. |
Henryk (Henryk)
Intermediate Member
Username: Henryk
Post Number: 1187
Registered: 8-2001
| | Posted on Friday, September 12, 2003 - 8:00 pm: | |
While removing the injectors, I had to remove a LOT of stuff!!!! Needless to say, I have decided to do a major on my 88.5TR, as you are. I had it planned for next Spring, but decided to do it now.
I will remove the engine, and put it into a heated "mud room" attached to the house( I live on a farm). This will give me something to do during the Winter. Installation will take place in the Spring.
Maybe we can work on ours together, Jeff.
I will leave the fuel lines alone, since the rust is only superficial, as you have stated that yours are. |
Henryk (Henryk)
Intermediate Member
Username: Henryk
Post Number: 1186
Registered: 8-2001
| | Posted on Friday, September 12, 2003 - 10:47 am: | |
We could use JRV's help here. |
Henryk (Henryk)
Intermediate Member
Username: Henryk
Post Number: 1185
Registered: 8-2001
| | Posted on Friday, September 12, 2003 - 10:43 am: | |
I only took two out, so far......O-ring looks OK on one, while the other had a small, insignificant gouge in it. They are not really "pressed" in......some are hard to get out because of the surface corrosion holding them in, at the top. I have noticed, that when I pulled out the injector, some of the bushings did slip upward. Take note of this, since you will have to push them back in.
I wonder if standard O-rings could be used.....the same size, or are these something special.
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Jeff Green (Carguy)
Member
Username: Carguy
Post Number: 510
Registered: 10-2002
| | Posted on Friday, September 12, 2003 - 9:54 am: | |
Henry...I'm still reluctant to remove the bushings from my car. If they are pressed in and there is no room to "move" or "wobble" I would hope the o-rings would be okay. I wish some others would speak up and let us know what they've done about this issue. But if the bushings are simply to provide the dimensionally correct recepticle for the injectors in the intake tube, should they be removed? I'm guessing that when a dealer changes injectors they simply do just that. How did your bushing o-rings look, were they cracked or gouged? |
Henryk (Henryk)
Intermediate Member
Username: Henryk
Post Number: 1184
Registered: 8-2001
| | Posted on Thursday, September 11, 2003 - 7:57 pm: | |
While one of the bushings came out easy, the others did not......DON'T use the hammer and screwdriver technique. The bushings are soft aluminum, and any hitting on it will mar the outer edge.....ask me how I know!!!!!!
There is surface corrosion between the bushing and the manifold, at the top. I sprayed some "Blaster" and will let it soak for the evening......then machine a driver, and press it out. |
Henryk (Henryk)
Intermediate Member
Username: Henryk
Post Number: 1182
Registered: 8-2001
| | Posted on Thursday, September 11, 2003 - 6:23 pm: | |
Jeff: The only way one can tell if the sealing rings are OK on the bushing is to take it out....how else can one tell?
I was able to remove one of the bushings......tapped it out with a screwdriver and small hammer....no big deal. There is a large O-ring (sealing ring) on the outside of the bushing.
Did you spot the third O-ring? It is at the lower end of the bushing, between it and the injector. Hard to see due to all the black carbon buildup over the years.
Which O-rings to replace? Hard to answer. I will definitely replace the small thick one around the injector. I will clean the others, and if not cracked, probably re-use them. It is tempting to replace them, if only for the reason that they are so old. |
Jeff Green (Carguy)
Member
Username: Carguy
Post Number: 508
Registered: 10-2002
| | Posted on Thursday, September 11, 2003 - 10:21 am: | |
Henry: Does the bushing have to come out or can it stay in, provided it's sealing rings are still okay? I would be tempted to leave them undisturbed. My injector "nut portions" also have rust. The tapered input at the top of mine has some areas of discoloration, so I'm not sure if I would want to continue using them. The plating on my fuel lines does not look the best, but a light buffing with a brass brush makes them look lots better. There is very minimal corrosion on my lines, so I'm keeping them. Besides, from what I've seen on ebay a set of fuel lines is VERY expensive. For my car then it looks like I'll simply need new O-Rings for the injectors, unless more info. comes to light saying otherwise. Thanks Henry for sharing.... |
Henryk (Henryk)
Intermediate Member
Username: Henryk
Post Number: 1181
Registered: 8-2001
| | Posted on Wednesday, September 10, 2003 - 10:24 pm: | |
Jeff: I just removed a 3-piece lower plenum, and then one injector. What came out was the retaining clip, injector, and a small thick O-ring. It seems that I will have to machine a driver for the bushing.......I can't see any other way to remove it.
There is some rust on the nut portion of the injector, but the sealing portion is clean.....so I will test mine and re-use the good ones....this helps pay for the tester!!!!!! If the sealing portion was exposed to your sandblasting, then you should replace all injectors.
I have noticed that the fuel line junctions, between the rubber and steel lines is rusted on most of them. This was unseen, since they lay beneath the plenum. Did you notice the same thing? I am tempted to replace them.
The tester WAS a major piece of equipment...price wise. |
Jeff Green (Carguy)
Member
Username: Carguy
Post Number: 507
Registered: 10-2002
| | Posted on Wednesday, September 10, 2003 - 9:06 pm: | |
Thanks Henry for the offer, that's very generous of you. My injectors appear to have corrosion around the fuel inlet area. I'm not sure they are worth the trouble of trying to save. Besides, when I media blasted the intake runners I left the injectors in them because I'd planned on replacing them. So I'd imagine their toast. But who knows, I hear these constant spray injectors are nearly indestructable. I would just like to know what parts to order to facilitate installing them, how many o-rings, clips, washers, or whatever. But I'll probably just disassemble one and find out for myself then. Is that testor a major peice of equipment? |
Henryk (Henryk)
Intermediate Member
Username: Henryk
Post Number: 1178
Registered: 8-2001
| | Posted on Wednesday, September 10, 2003 - 8:52 pm: | |
Jeff: I just got my new Bosch injector tester......I am now in the process of taking my 88TR injectors out, with engine in the car. I have removed the air intake housing, and am now removing the top of the plenum. I plan to remove the intake runners as a unit, with the injectors still in......I want to remove them outside the car......that way there is no chance of getting anything into the engine.
I thought this would be a Winter project, but your posts convinced me to do it now.
If you would like, you could send me your injectors and I will test them for you, as I do mine. |
Henryk (Henryk)
Intermediate Member
Username: Henryk
Post Number: 1177
Registered: 8-2001
| | Posted on Wednesday, September 10, 2003 - 7:26 pm: | |
Jeff: My service manual shows a picture on page D15. It has two O-rings, and a retaining clip. The picture is of the TR with K-Jetronic......when they talk of the KE-Jetronic injectors, on page D71, they refer the reader back to page D15.
The parts manual (1990) shows what you state....TAV.11.
Maybe there was a change between the K and KE-Jetronic injector seals. |
Jeff Green (Carguy)
Member
Username: Carguy
Post Number: 506
Registered: 10-2002
| | Posted on Wednesday, September 10, 2003 - 5:21 pm: | |
Looking at the shop and parts manuals, the two don't seem to agree on parts used to install new fuel injectors. Going from the bottom upwards: The parts manual shows two garter rings, then the injector bushing, then a seal ring, then the injector, and finally a stop ring. The shop manual shows the bushing, a couple of seals, the injector, and the retaining ring. What is involved in installing new injectors? Do all the parts have to be removed? Besides the obvious seals, what if anything else must be replaced? Any help is appreciated. |
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