Question about 1990 Toyota Supra

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Why there is current to plug coil but no earth coming when i cranking supra 1jz engine?but that engine was converted in bmw e39

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Run separate earth

Posted on Apr 29, 2010

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Engine,when cranking,sounds like an engine cranking with spark plugs removed;like no compression.


the bmw 525I/530I ( E39) 2.5 l/3.0L engine id25 6S,30 6S (m54) 2001-2003 does not identify as an interference engine so there should not be valve damage
it is chain driven and you will need special cam shaft tools , tensioner locking tool and other special tools to do the job
basically a job for professionals with the correct tools and bmw knowledge
the first inexpensive job that you can do is to check that the chains haven't broken and that the cam shafts are rotating
next is a compression test to determine if the valves are in good condition
if that is good ( 155 -165 PSI) then run the fault codes to determine what may be failing
after that you will know if it will be expensive to repair

Nov 25, 2016 | BMW Cars & Trucks

1 Answer

Engine cranks when hot. Why doesn't it start?


BMW wont start, electrical problems FIX! - YouTube

? 2:45
https://www.youtube.com/watch?v=L8akXREk80w
Jul 18, 2014 - Uploaded by DeviledDevin
BMW wont start, electrical problems FIX! .... After 6 days of reading and watching DIY videos might just open a service bay for Bimmers. ... the ignition refused to transfer current to engine after few productive cranks leaving me with an unfinished ... Now comes the big question: where can I buy this product?Missing: x1 ‎xdrive20d

Summary of engine cranks but won't start threads (gas air spark ...

www.bimmerfest.com > ... > 5 Series > E39 (1997 - 2003)

Nov 15, 2013 - 25 posts - ‎10 authors
any of which would cause an engine to not start - but - there wasn't a good ... See: How to test compression on a BMW E39 V8 engine (1) and on the I6 engine (1) ... etc., but who don't post codes from an OBD scanner with their question (1) ..... Likewise, if the fuel pump relay had an electrical short or open, ... Hard to start when engine is warm
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Dec 25, 2015 | 2011 BMW X1 xDrive20d

1 Answer

Need to know how much torque pressure to tighten cylinder head for 1jz engine


petrol engine with alloy head ?' if so then about 70/75 lbs is right

Jun 25, 2011 | 1995 Toyota Supra

1 Answer

Car turns over.but wont fire.


NOT MUCH TO GO ON, MOST NON STARTERS ARE CAUSE BY ELECTRICCS
1. TEST FOR SPARK ON EACH LEAD WHEN CRANKING ENGINE
GUESS YOU HAVE POINTS IN THE DISTRIBUTOR,
2. IF NO SPARK AT PLUG LEADS, TURN IGNITION ON AND OPEN POINTS WITH S/DRIVER SEE IF SPARK FROM COIL TO DISTRIBUTOR LEAD HAVE THE END HELD CLOSE TO EARTH POINT, THEN CHECK THEY OPEN WHEN ENGINE ROTATES, IF THAT FAILS CHECK POWER TO COIL WITH IGN ON.
CHECK YOU HAVE FUEL GETTING TO THE PLUGS,

Dec 07, 2009 | 1986 Toyota Supra

1 Answer

Engine compatible


Yes. However it is a very expensive swap $5000 to $8000 to do it right. You will need the 1J or 2J engine, transmission, wiring harness, ecu, and alot of other pieces to do the swap. The engine brackets will need to be modified and you will have to upgrade your brakes. This kind of swap requires a good knowledge of the Toyota Supra and the engines. I do not recommend this swap for a beginner. A cheaper way is to take a 7M-GTE and upgrade the internals and turbo.

Jul 09, 2009 | 1987 Toyota Supra

2 Answers

Toyota 1jz engine,are they hydraulic or shim tappet,and if shim,what are the clearances?


Shims and Valve clearance cold : 0.15-0.25mm (in)
0.25 0.35mm (ex)

Mar 23, 2009 | 1992 Toyota Supra

1 Answer

My 93, 318I won't start


if you think your cambelt has broken ,when your trying to crank it over ,your engine should turn over faster but will not start.,to check if your fuel pump is not working,turn the key whithout turning over the engine and listen if your fuelpump buzzess than you know your relay is not faulty,.i gather your bmw is a E39 model fitted wid a distributor cap. check your ignition coil plug pins for rust,or your modulator cables/plug connection.

Jan 20, 2009 | 1999 BMW 318 ti

1 Answer

Engine Problems


There is no 3c engine in a Toyota Supra. If you have a 1995 it would have a 1JZ-GE, 1JZ-GTE, 2JZ-GE, or 2JZ-GTE if you can tell me which engine you have I can further assist you.

Dec 28, 2008 | 1995 Toyota Supra

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