Recent Posts

21

IDI Engine / Re: Sharing my 1.6td project

« Last post by as4k on June 09, 2024, 09:44:58 pm »

Small update.  First, I still owe you guys a starting video.  I'll get on that this week.  We moved a few months ago, had the car show in PA, and just got back from a cruise, so things have been busy and I have not done many car related things.  I did however put down a list of things I need to get done on this thing.  I also hooked up the new battery and gave the car a start, idle, and to see if it moved (since I messed with the clutch cable many months ago).
I'll let you guys weigh in on the starting when I post the video.  I still need to see why injector 4 is slightly leaking, but I do have a replacement to toss in.  The engine actually seems to vibrate more than it used to when it was at my other home in the garage.  I'll check the engine mounts and such there.  I did try to move the car and it does move in reverse and 1st!  Clutch engagement seems good, but the pedal needs some adjusting as it doesnt fully return.  I'm more of a hydraulic clutch guy so this is all new stuff.  Cable is brand new OEM.
Lastly, I did buy some actual timing tools (dial indicator) as well.  My friend who is the VW diesel guru has some and has timed my engine and pump.  Figure I'll learn how to do it myself so I can understand too.  When I pull the crank sandwich off to replace the crank bolt I'll have us verify the timing again. 

More to come!  Appreciate everyone here!

22

IDI Engine / Re: Please help me get my JX 1.6TD running!

« Last post by fatmobile on June 08, 2024, 12:31:35 am »

 Because it's just one injector acting up, I don't think that could be caused by timing.
 I'm not sure what the local bosch service center would charge just to test them.
 Probably wouldn't be much.

23

IDI Engine / Re: Please help me get my JX 1.6TD running!

« Last post by ORCoaster on June 07, 2024, 10:07:00 pm »

Timing should be OK where you have it ghostrider2. 

Fatmobile, there are those on this forum that will shake their heads at that reforming habit of yours.  But I am of like mind and manner.  As long as you inspect them well for cracks in the center and replace them when they show up I can't see why reuse isn't a good thing. 

I do have a set of 4 on hand at all times however should I need them. 

I would hate to get stuck taking all of them off and having a mass failure event happen and need them to get back up and running. 

24

IDI Engine / Re: Need help with tracking down air leak in 1.9 AAZ pump

« Last post by ORCoaster on June 07, 2024, 10:02:16 pm »

Nice detective work guy.  Hope it gets sorted out and runs smoothly from now on.

25

IDI Engine / Re: Need help with tracking down air leak in 1.9 AAZ pump

« Last post by Buji88 on June 07, 2024, 12:03:53 pm »

Well I think I figured it out....I put vacuum to it and it held good, was able to build about 15 inch on it with no drops. I tore it down to access the timing piston to check the advance and make sure it was all good. I noticed the cold start assist (the thing that runs from top of the housing down to the timing piston that has the electrical connection) had stripped badly. You could grab about 1 thread at the bottom but it won't tighten fully. I think either A) The threads were damaged at a past point, and when I took it off to change the seals on the covers (which is when all this started), I finished off the threads, or they cracked. B) I had cross-threaded it on the original install, but I didn't feel anything wrong ever retightening that banjo bolt.

But either way, you could kind of tighten it, and I suspect during running and vibration that it would be able to pull air in there. I'm also pretty sure that the chunks of threads likely ended up in the pump. I had a spare pump that wasn't turning, and I loaded it with sea foam and let it soak for a couple of days, and now it spins. I pulled the head off of it as well, and it was very serviceable looking inside, so I'm going to clean it up, fully reseal it, and, well, hopefully, that's it!

26

IDI Engine / Re: Please help me get my JX 1.6TD running!

« Last post by ghostrider2 on June 07, 2024, 07:41:06 am »

Alright. Thanks for the tips. Time to source an injector tester. No one thinks it’s still the timing?

27

IDI Engine / Re: Please help me get my JX 1.6TD running!

« Last post by fatmobile on June 06, 2024, 11:42:53 pm »

 Yep, it is nice to have an injector tester nearby.
 Then I reform the heat shields before reusing them.

28

IDI Engine / Re: Need help with tracking down air leak in 1.9 AAZ pump

« Last post by fatmobile on June 06, 2024, 11:41:14 pm »

 That air should eventually bleed out.
 Such a small amount of fuel moves through those lines it can take a while to purge it.

29

IDI Engine / Re: Please help me get my JX 1.6TD running!

« Last post by ORCoaster on June 06, 2024, 10:06:41 pm »

Oh my goodness,  That would have fuel spraying everywhere.  But you could potentially contain each injector in a plastic see-through dish and MAYBE determine what kind of spray you have coming out of each one.  I would just go get a cheap injector pump from Harbor Freight if I didn't already have one.  It is always mounted on the bench just in case I have a strange noise under the hood.  I can pull the injector and check it in less than five minutes. 

30

IDI Engine / Re: Need help with tracking down air leak in 1.9 AAZ pump

« Last post by Buji88 on June 06, 2024, 08:26:55 am »

I will, caps get here tonight so I can try and see whats up with the pump.

I run clear lines between the injectors and they get bubbling a bit then eventually fill up, but I've always the injectors getting air there don't really matter since the return is just fuel that didnt get injected. But yea I get a fair amount of bubbles in the injector returns.