 72 1.7 Burning oil, After brief warmup blue cloud |
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| MNnewbie |
 Apr 13 2017, 04:05 PM
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#1
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Newbie  Group: Members Posts: 11 Joined: 10-June 14 From: MN WBL Member No.: 17,466 Region Association: Upper MidWest  |
Looking for any advice I can get regarding a 1972 1.7 w 48k on the motor
It starts fine when its cold but once it has ran for 5-7 minutes and driven it starts blowing a lot of blue smoke. So much so that there are drop of oil coming off of the tailpipe. Have not checked compression yet -hope to tonight |
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| injunmort |
Apr 24 2017, 06:42 PM
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#2
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Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
there are no guide seals on a type IV. 90 is low and and adding 90wt brings up compression, i am leaning toward a ring issue not guide/valve. dosent matter though, to address either requires pulling engine and top end disassembly. to inspect and measure rings and piston/wall clearance. if the engine is not making any strange noise, probably rings, if it "ringing like a bell" maybe bore and piston.
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| MNnewbie |
May 4 2017, 02:46 PM
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#3
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Newbie Group: Members Posts: 11 Joined: 10-June 14 From: MN WBL Member No.: 17,466 Region Association: Upper MidWest |
QUOTE(injunmort @ Apr 24 2017, 04:42 PM)  there are no guide seals on a type IV. 90 is low and and adding 90wt brings up compression, i am leaning toward a ring issue not guide/valve. dosent matter though, to address either requires pulling engine and top end disassembly. to inspect and measure rings and piston/wall clearance. if the engine is not making any strange noise, probably rings, if it "ringing like a bell" maybe bore and piston. I stalled out last weekend on removing the engine and tranny but have my confidence back and plan on doing so this weekend. Any recommendations for a mechanic or machine shop in the St Paul Mpls area also appreciated. |
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Posts in this topic
MNnewbie 72 1.7 Burning oil Apr 13 2017, 04:05 PM
injunmort need more. has it been sitting? comp check first, ... Apr 13 2017, 04:09 PM Rand Sorry for the dumb question, but asking to learn: ... Apr 13 2017, 04:19 PM
mgphoto
Sorry for the dumb question, but asking to learn:... Apr 13 2017, 05:45 PM Rand
Sorry for the dumb question, but asking to learn... Apr 13 2017, 05:54 PM MNnewbie The car had been driven last summer off and on for... Apr 14 2017, 09:27 AM mgphoto Pull the spark plugs, check the condition, if oily... Apr 14 2017, 12:51 PM Perry Kiehl Sounds like a broken ring to me, but anything is a... Apr 14 2017, 02:57 PM injunmort worn guides or mushroomed valves will allow oil in... Apr 14 2017, 03:36 PM MNnewbie I finally got around to doing a compression check ... Apr 24 2017, 09:28 AM Ansbacher I had the same symptoms with my first 914 back in ... Apr 24 2017, 09:36 AM MNnewbie
I had the same symptoms with my first 914 back in... Apr 24 2017, 10:51 AM Dave_Darling Turned out to be valve guide tube seals...
No su... Apr 24 2017, 01:16 PM The Cabinetmaker Valve guide tube seals? :confused: Apr 24 2017, 10:41 AM |
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