injector lines and valve clearances.
 

i have just put in a parts order for a glowplug set and a valve cover gasket along with other parts. i will be changing the glow plugs soon and i was wondering if the injector lines could be removed without damaging any seals to beter acsess the glow plugs. can it be done? my next question is what are the intake and exaust gap numbers? i have a feeler guage that reads:0.008,0.010,0.012,0.013,0.014,0.015,0.016,0.018,0.019,0.020,0.025,0.026 can anyone tell me what ones i need to use for the intake and exaust. i feel like an idiot for asking but could someone please help me with that. any ino would be GREATLY appreciated

You can remove the entire set of injection lines as a group. It would be recommended to get a crow's foot wrench for the lines on the pump as they are quite close together. Additionally, when you put the lines back onto the injectors, make absolutely sure that you have started the nuts by hand, and have not cross threaded them, prior to using a wrench. Sometimes they can get quite stubborn because they are not exactly aligned with the injector and you must muscle them back into place and simultaneously start the thread.

The intake requires .004 clearance cold.

The exhaust requires .014 clearance cold.

Good luck.

well the lowest my new guage goes it .008 but i found my old one and it goes to .0015 but there is no .004 whats the next best size to use?

Hmmm...go with the next best size that you have :rolleyes: . Seriously, though, if you don't have one that's close enough you might want to invest in a new set of feeler guages. They're not expensive.

If you are going to set the valves to the wrong size, why bother to set them at all? They are already at the wrong clearance. Stop at Poop brothers and get a proper set of feeler gauges.

Do it once.

Do it right.

yea i do need to invest in a new set. i just bought one of them today. only $3 at autozone. maybe ill go to sears tomorrow now that my check has cleared. thanks for the help u have given me.

OK, are those clearances different than for a 617.912? I set mine to .10mm intake and .30mm exhaust, or is that just thousandts compared to mm's?
JL

Yeah, we're dealing with inches at the moment, not millimeters. You did it right. With the engine cold, non-turbo 300D valves are set at 0.10mm for the intake and 0.30mm for the exhaust. The only difference for turbo models is that the exhaust is set at 0.35mm.

K,

Why are you replacing the GP? They are not a maintenence item. Check them with an ohmmeter and if all are about 0.7 ohms, they are all OK and don't need to replaced. If you find any bad ones, just replace those .

If it ain't broke, don't fix it.

Injection lines do not have to be removed to change GP so why do it and ask for more trouble.

P E H

you might want to change injector hose while doing valve cover gasket If you havent changed them yet.

because they are all weak. plus i wanna ream them out and get all the carbon so they will heat better. the lines have been replaced recently so they should be good.

K,

Hmmmmn, How do you know the GP are weak?

What test did you use? Or is your engine just hard to start?

P E H

i used an ohm meter,they showed more resitance than the new one i have. the engine is also hard to start when really cold. i orderd the kit with the updated relay also. i bought a big can of antiseize to put on them so they dont get too stuck. thanks for all the help.

Use a good penetrant like PB blaster and put it on when the engine is hot.

idk what thats is and i dont know where to get it.

PB blaster is a very good solvent (spray, like WD-40) It is yellow in color, rust preventative, and some of the best penatrating lube ive seen/used. They sell it at any auto parts store, and even wal-mart.

As for the GP's the are not hard to r/r the 3rd and 5th are a bit challenging, but nothing that you cant handle. BTW- the wrench size is a 12, if you didnt already know.

thanks alot. :)

It's just a penetrating oil. Kinda like WD-40. Check Ace Hardware, Home Depot, Walmart, etc...

Danny

i got the pb blaster, had to got to autozone where i have a friend because walmart wouldnt sell it to me. i also found the .004 feeler guage. it was in my old set it was just stuck to one of the others so i couldnt see it. the glow plug reamer came yesterday and the parts should be here on friday.cant wait to see if the new glow plugs and the updated relay will make a difference.i also cant wait to adjust the valves since i dont think it has been done in many many years(aunt owned it before dad,and dad didnt know how or wanna take the time to do it). i have almost finished taking what i can use off the parts car. i just need to remove the motor mounts i put in it. the only rust i have been ablwe to find on my new sd was the battery tray and under the tray. i removed the tray from my parts car stripped it of old paint,wire brushed the rust off and treated it with por-15. the old battery leaked really bad and had a discharge problem. just thought i would update and say thanks for all the help everyone gave me

i even made one of the adjusting wrenches

if you go get a couple of ratcheting box end wrenches from sears, you wont have to remove the injector lines...youll need the straight ones, and not the angle ended type, 8mm and 12mm for the glow plugs....no sense making the job harder than it has to be :)