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#1
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Delivery Valve Seal Epic Fail
So I finally got the spline socket today to change delivery valve seals on my 1993 300d.
Everything was going well, until I attempted to torque delivery valve #5. The bottom of the valve broke into the threads, just below where the seal is. I can still thread the valve on slightly. Wow, I think I am completely ****ed here. I can't think of any possible solution other than replacing the whole pump. Just figured I would post here in case anyone has any ideas. P.S. I put everything back together with the broken valve hand tight, amazingly the car started and runs, but #5 cylinder has no pressure.
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1993 300d - Von Strudel 1987 190e (RIP) - Duke 1983 230e (sold) - Helga 1982 240d (sold) - Igor 1973 280 (sold and missed ) |
#2
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How on earth did you manage that? The torque setting is so low that there's no possible way that you could have broken them off unless you were really wrenching on it or had it in a serious bind.
If the top part broke off, the bottom part should still be in the original position. Reinsert the top part back where it was and use it to unthread the lower section. The threads have a decent amount of tolerance to them, it should simply unthread with hand pressure.
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Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#3
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It was very strange, and no, I was not torqueing hard. I think it might have something to do with the cold temps, it was about 20 outside.
Thanks, I will try, but not too confident that will work. I will let you know when I try tomorrow.
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1993 300d - Von Strudel 1987 190e (RIP) - Duke 1983 230e (sold) - Helga 1982 240d (sold) - Igor 1973 280 (sold and missed ) |
#4
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The DV holders thread extremely easily by hand. There's almost no drag at all until the O-ring gets pulled down in the threads. You should be able to unthread the part that broke off with a pick or something. If it won't turn, you likely crossthreaded it into the hole which would not be a good situation...
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Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#5
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After trying a few different things, I don't think there is any chance of getting the broken piece out. It's possible I cross threaded it.
I'm going to take off the intake manifold and try and get at it a few different ways. Beyond that, I'll either be changing the injection pump, or parting out the car. Sad.
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1993 300d - Von Strudel 1987 190e (RIP) - Duke 1983 230e (sold) - Helga 1982 240d (sold) - Igor 1973 280 (sold and missed ) |
#6
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wow a torque is only 35 Nm. try to use big easy out from Snap on check their website.
You can get spare part from either this guy in NC - +17046212322 OR email to Lee jESSE sales@contagiousdiesel.com ( he is responding long but he is cheaper, as found out late. Well I paid already to NC guy. )
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91' MB 350 SDL, with 961 engine and #14 valve head 09' ML320 Bluetec |
#7
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Thanks. I already acquired a new valve locally. The typical extractor won't work because in the center is full of the other parts.
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1993 300d - Von Strudel 1987 190e (RIP) - Duke 1983 230e (sold) - Helga 1982 240d (sold) - Igor 1973 280 (sold and missed ) |
#8
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it is pretty hard to cross thread. did you start it by hand first? also it'd be a shame to part the car out over a mistake you made. I don't think thats the right thing to do.
it's a shame I had a spare injection pump for sale and I threw it in the trash because no one wanted it for two months and I had no use for it.
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Only diesels in this driveway. 2005 E320 CDI 243k Black/Black 2008 Chevy 3500HD Duramax 340k 2004 Chevy 2500HD Duramax 220k |
#9
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Could just pull off the pump and see if a machinist\ IP shop can remove it
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2004 F150 4.6L -My Daily 2007 Volvo XC70 -Wife's Daily 1998 Ford F150 -Rear ended 1989 J-spec 420SEL -passed onto its new keeper 1982 BMW 733i -fixed and traded for the 420SEL 2003 Volvo V70 5 Speed -scrapped 1997 E290 Turbo Diesel Wagon -traded for above 1992 BMW 525i -traded in 1990 Silver 300TE -hated the M103 1985 Grey 380SE Diesel Conversion, 2.47 rear end, ABS -Sold, really should have kept this one 1979 Silver 300D "The Silver Slug" -Sold |
#10
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Quote:
I doubt I will part the car. First I'll try to source a pump locally. Too bad you threw it away! Thanks, I'll keep that in mind. I might be able to get a good used pump for less than a shop would charge to remove.
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1993 300d - Von Strudel 1987 190e (RIP) - Duke 1983 230e (sold) - Helga 1982 240d (sold) - Igor 1973 280 (sold and missed ) |
#11
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Quote:
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Only diesels in this driveway. 2005 E320 CDI 243k Black/Black 2008 Chevy 3500HD Duramax 340k 2004 Chevy 2500HD Duramax 220k |
#12
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Right. Definitely going to chuck the thing.
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1993 300d - Von Strudel 1987 190e (RIP) - Duke 1983 230e (sold) - Helga 1982 240d (sold) - Igor 1973 280 (sold and missed ) |
#13
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That's also why I HATE the "click" style torque wrenches. Mine is a dial type, requires access to read the face, but if you do, you're never wrong. I've had way too many issues with the click wrenches failing to click, or clicking in a way that you don't notice it.
__________________
Current stable: 1995 E320 149K (Nancy) 1983 500SL 120K (SLoL) Black Sheep: 1985 524TD 167K (TotalDumpster™) Gone but not forgotten: 1986 300SDL (RIP) 1991 350SD 1991 560SEL 1990 560SEL 1986 500SEL Euro (Rusted to nothing at 47K!) |
#14
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Quote:
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1993 300d - Von Strudel 1987 190e (RIP) - Duke 1983 230e (sold) - Helga 1982 240d (sold) - Igor 1973 280 (sold and missed ) |
#15
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Quote:
Quote:
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Only diesels in this driveway. 2005 E320 CDI 243k Black/Black 2008 Chevy 3500HD Duramax 340k 2004 Chevy 2500HD Duramax 220k |
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