 Another 245 Idle Problem 1976, vacuum pump |
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| Another 245 Idle Problem 1976, vacuum pump |
 Aug 29 2005, 10:39 PM
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#1
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Member  Group: Members Posts: 61 Joined: 22-July 05 Member No.: 6,403 Status:  Location: Appleton Wisconsin Drives: 89 240 GL & 76 245 Wagon  |
I pulled the vacuum pump from our 76 245 wagon today and found it full of debris and caked with residue. Any thoughts on why? I am having a hard time splitting the diaphram apart. Anyone ever to do this with success? The car has poor idle control until it warms ut and then seems to miss/backfire with carbon deposits coming out of tailpipe. Any suggestions? I have ordered tune up parts, hoses and the rebuild for the pump. Thank you. George
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Aug 30 2005, 04:59 AM
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#2
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 Expert  Group: Super Mod Posts: 747 Joined: 2-May 05 Member No.: 4,718 Status: Location: Wonga Beach, Qld, Australia Drives: Volvo 1976 264 |
well I assume this is fuel injected? and not a carbie model?
if so I can help with KJetronic but I have no idea what a vacuum pump might be vacuum comes from engine and not a pump so can you please explain the question because if just a warm up problem I should be able to help |
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Aug 30 2005, 09:33 PM
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#3
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Member Group: Members Posts: 61 Joined: 22-July 05 Member No.: 6,403 Status: Location: Appleton Wisconsin Drives: 89 240 GL & 76 245 Wagon |
Doc,
Yes this is a CIS model with a pump mounted on the head that is activated by the cam. It is mentioned in the Haynes as a vacuum pump. Haynes also says that not all injections models have them. I am assuming that it is not the culprit with the poor idle. The idle issue is: Car starts and wants to quit without constant throttle. after a few minuted of gradually backing opp the pedal it is more likely to continue running and sometimes has a sort of "ping" sound backfire and smells very rich. I should mention that I dumped some RED LINE fuel system cleaner in. Thanks for any advice. I ordered the rebuild parts for the vacuum pump on the http://www.thevolvosite.com/shop/index.php...4&car_model=240 George |
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Sep 2 2005, 07:54 AM
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#4
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Member Group: Members Posts: 61 Joined: 22-July 05 Member No.: 6,403 Status: Location: Appleton Wisconsin Drives: 89 240 GL & 76 245 Wagon |
:banana:
Rebuilt the vacuum pump, changed the vacuum lines and gave a tune up with new fule filter and it just purrs... |
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