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Old 08-18-2014, 07:15 PM
RedArrow RedArrow is offline
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Join Date: Jan 2013
Location: New York
Vehicle: 1986 Volvo 745 TD
Posts: 900
Default Coolant hose failed

Posted to wrong section? Luckily my diesel didn`t die!!

It`s almost `ocd` but I check things under the hood before and after every trip (to see/hear/find any imperfections,fluid levels,wiring issues,hoses,leaks (if any),etc.
`Bad news` … On a long distance fishing-camping trip this weekend, fish not biting, …so I couldn`t catch a damn thing but a tiny coolant `leak` which I`m not going to underestimate at this point. Good catch! Good news that I found it. but… I`m having a hard time finding the proper hose itself though… it`s the one that runs from the nipple at Upper Rad hose towards Inj.Pump. At 50mph in 4th, Climbing the Verrazano Br on the way home, I noticed a 1millimeter hike at the temp gauge (less pressure thx to hole on hose??) so I said wtf it`s always been steady&it`s definitely not what it usually shows. Normally I have it slightly below middle, but needle was at middle now. No overheating, no issues, but this hose must go!
Any info/ideas appreciated (quick temporary fix by silicone tape, rubber glue , grandma`s apricot jam, etc, idk)
What I see: There`s a very small hole (visible when hose is bent or squeezed) that lets some coolant out which then evaporates I guess, and leaves yellowish residue behind (that`s how I noticed the leak, it looked similar to oxidization or some foamy glue or whatever, see pict) I use Zerex G-05 coolant btw.
There`s no coolant missing. Actually,Talking about the last 6-700 miles recently, I did have to fill up exp tank yesterday because level was somewhat half an inch lower than `max` which I`m religiously trying to maintain if needed. Both clamps carved into hose pretty badly, ends of hose are aged,may be brittle. I`ve been keeping an eye at this mean thing for 2yrs... time to get it out asap.
Label on hose says VOLVO 1257446 7462 1284 (I guess it`s the 1257446 that matters)
Some websites describe it as a part for 240/260 Diesel Volvos, under the same part number. Why? Some sites say 240/260/700 Volvos use same part number. I never found a great photo on these sites to see/compare what they are selling.

At www.Scandix.de there`s a 1040364 Product #. I`m confused. Best suggestion on a temp fix?
I`d love to have a Volvo part installed asap. Please share if you know about the source.
Whoever has engine out now…Could you please measure exact inner and outer diameters of both ends of this hose OR both nipples it goes onto? Thank you in advance!! If you have one, I of course pay for shipping it to NY


I cant find it listed here
http://www.swedishautoparts.com/740/...s.html#linkbar

These guys say it is no longer available. Here they call it Part # 1328973 (???)
http://www.volvopartswebstore.com/pr...2/1257446.html

Tasca has it????????????is this the right one???
http://www.tascaparts.com/oe-volvo/1257446

Best way to fix it? Idk. Here`s some ideas.
http://www.viperperformance.co.uk/subcats.php?xctId=35

This is NOT the one, I think.
http://www.skandix.de/en/spare-parts...piece/1022971/

PLEASE COMMENT!
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File Type: jpg 20140817_172321[1].jpg (89.3 KB, 19 views)
File Type: jpg 20140817_172434[1].jpg (83.6 KB, 20 views)

Last edited by RedArrow; 08-18-2014 at 07:37 PM.
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