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#1
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1985 300D - Caliper Troubles
Hello All!
I was removing my calipers today and one of the caliper bolts came out in 2 pieces! It had snapped off. This was very sad. I drilled out the broken off bolt but have now lost all the threads. I was hoping to drive in a bolt and let it make it's own thread but the metal seems too hard. Does anyone have any ideas? Is it at all safe to drive with just 1 caliper bolt? Also, I need to bleed the front brakes but I can't figure out how I'm supposed to do that. Does anyone know? Thanks!!
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'85 Euro 300D - 258k 4 spd manual '85 300TD Wagon - 180k - SOLD Always looking |
#2
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Absolutely not. The only system a car really needs is brakes. |
#3
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you need a new spindle / knuckle
or a machine shop can tap you a new hole and give you the correct bolt for that thread. or you can use a heli coil... but that is at your own risk and undesirable to say the least. |
#4
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I'm thinking about putting a bolt through and using a nut and a washer on the other end, until I can take it to a garage for them to fix it.
I'm not sure if there is enough clearance for me to fit in a nut and a washer, but I'm going to take a look tomorrow morning and see what I think.
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'85 Euro 300D - 258k 4 spd manual '85 300TD Wagon - 180k - SOLD Always looking |
#5
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Answer
NO...
It is not safe... .
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ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ |
#6
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Answer
Quote:
http://www.tpub.com/content/construction/14273/ Brake: http://www.peachparts.com/shopforum/showthread.php?t=142411 |
#7
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NO
Quote:
That is a critical safety issue. Get a good used spindle / knuckle.. |
#8
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Ya Mar,
You need to take a trip to a junk yard & get a good second hand one. Dont try & drive with patched up brakes. It sounds like you have had "the brake job from hell". Its not normally that difficult. Best not to try & take a short cut at this stage. See the job through. Good Luck !!
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Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
#9
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Quote:
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1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior Don't leave that there - I'll take it to bits! |
#10
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If a bolt of the same diameter and length can be found of the same strength I don't see why through bolting it, if there is room, won't work. I would take the bolt you are planning to use though to a machine shop and ask them about it's strength.
You can also ask about installing a heli coil on such a part. As you have found the hub carrier is pretty tough material. (Sorry, but you sound somewhat inexperienced). Good luck.
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#11
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If you want to work out bolt strengths take a look at this link
http://euler9.tripod.com/bolt-database/22.html Scroll down to the bottom of the page and look at table 10 I think the bolt you'll need will be a 8.8 (stamped on the surface of the hex head)
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1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior Don't leave that there - I'll take it to bits! |
#12
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the problem with a bolt and washer is movement. calipers get a LOT of stress. and unless the bolt is threaded into the knuckle, it'll wiggle on each stop.
don't try to patch this. go get a replacement knuckle and be done with it! as a bonus, the junkyard will still have the bolts for your caliper in it! (be sure to clean the threads and install new BLUE locktite on the threads. or get new bolts from the dealer with thread locker already installed.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#13
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As a person with structural training, I believe I am qualified to say that either system will wiggle some. It is the tension which gives the most strength and then the shear capacity of the bolt.
I will modify my recommendation though. I would only do the bolt as a temporary measure until i could change the hub carrier.
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#14
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Quote:
If a through bolt and washer move around they will not stay tight. Another issue is the If you use a Washer it needs to be a hardend one also and as an example a Grade 8 washer is thicker thatn the regular ones; and where would you find Metric one. Clearly the Original poster does not want to take the Car someplace to have it fixed. A Heilcoil would work but the PO buggered the hole drilling out the Bolt. I would not expect good luck with him/her drilling a hole for a Heilcoil.
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84 300D, 82 Volvo 244Gl Diesel |
#15
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I have a new spindle ordered, it should be here Thursday.
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'85 Euro 300D - 258k 4 spd manual '85 300TD Wagon - 180k - SOLD Always looking |
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