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#1004 of 1692 Re: 94 Metro [vanillalatte] by m564ag Oct 31, 2006 (4:44 am)
Replying to: vanillalatte (Oct 30, 2006 5:37 am) well Van I have had this car for a while and have change stuff and kept a good eye on the tires. but the best I have ever gotten was 42mpg with a good tail wind. I do drive about 60/40 hwy/city. Hwy speed 75mph avg now what I mean by city driving is about 50/50 rural/inner city. But is there a timing set mark where you get both the get up and go plus mpg the fact spec is not so good on the get up and go part -- car seams to take way to long to get up to speed and is a real dog when it comes to going up hill I do have it adv some now which seams to help I am missing something or is just the way these cars are.
#1005 of 1692 Re: 94 Metro [pipeman] by m564ag Oct 31, 2006 (4:47 am)
Replying to: pipeman (Oct 30, 2006 6:35 am) well pipeman I have had this car for a while and have change stuff and kept a good eye on the tires. but the best I have ever gotton was 42mpg with a good tail wind. I do drive about 60/40 hwy/city. Hwy speed 75mph avg now what I mean by city driving is about 50/50 rurel/innercity. But is there a timming set mark where you get both the get up and go plus mpg the fact spec is not so good on the get up and go part -- car seams to take way to long to get up to speed and is a real dog when it comes to going up hill I do have it adv some now which seams to help I am missing something or is just the way these cars are. Replies to this message: pipeman (Oct 31, 2006 7:32 am)
#1006 of 1692 Re: 94 Metro [magicpsn] by pipeman Oct 31, 2006 (7:27 am)
Replying to: magicpsn (Oct 30, 2006 12:36 pm) I redone the engine by my self. Both engine 3 cyl. : the 1991 after rebuild registered on cold engine compression: 214, 208, 204. The engine # 2 -1994 also 3 cyl. registered 208, 204, 199 psi. The first engine I assembled with very close tolerances on rings ( 1 compr, + 2 oil rings. The pistons and the conrods/wristpin where registered at 675 gramms (3). The second engine was assembled with more open tolerances on rings with pistons and conrods/wristpin 670 gramms. Both cyl. heads intake ports and exhaust ports where polished and where also opened in the inlet and the exhaust manif. was opened in the inlets. If you need more info, please let me know. I checked the compression on one engine 1991 after 10000 miles. The second has only 4000 miles. The 1994 with 143.000 miles lost oil pressure and I replaced the oil pump, pressure valve, but didn't help. I found later the camshaft bearings was gone. The second engine was low on compression #2 with 145 psi. I decide rebuild the engine completly. The 1991 Covert, has only 36000 miles, when I change the engine. If uyour engine run poorly,please check the compression. IF is aroung 160-190 psi, you have a problem with the EGR. Remove the exhasut manifold, intake manifold and clean the opening in the cyl. head and also in the exhaust manifold, check also the intake flow. Remove the bolts from the exhaust site and replaced with studs. Works much better when you will assembled the engine. I always play with my cars and my work. Usually my engines afyter rebuilding registered over 180.000 miles, with proper maintenance. If the body is good, first check the front suspension, the lower control arm attached to the unitbody ( lower frame) is not rust, I will redo the engine or cyl. head. Do not make any short cuts. If you think do valve job, rings , you can redo all engine at ones. More easy. I'm planning use my Geo's next 20 years. I drive daily over 120 miles to work. Also in good weather I drive my BMW 524 TD with 230.000 miles at 35 MPG. Any questions, let me know. I like help people. American people help me here 25 years ago, when I escaped Poland. God bless USA and Americans. Thanks. Replies to this message: magicpsn (Nov 02, 2006 10:55 am) geometro91 (Nov 05, 2006 11:18 am) pipeman (Nov 05, 2006 4:21 pm) geometro91 (Nov 06, 2006 12:24 pm) and 2 more...
#1007 of 1692 Re: 94 Metro [m564ag] by pipeman Oct 31, 2006 (7:32 am)
Replying to: m564ag (Oct 31, 2006 4:47 am) If you get 42 MPG in 50/50 driving it is very good. Honda and Toyota can't dupliacte this. You paid for the vehicle few hundrats dollars, but the "smart buyers" paid over 20.000 and get this same millage. With the timing marks - watch out for set up. Is different before 1992 and after 1993 up. What yer is your car? YOu shuold't pump more than 28 psi in the tires. You will shake to much the car, if you have more pressure. All car will vibrate on higher tire pressure. I use 13" tires. Before 1992 the sepc are 10 BTDC, but after 1993 July up, the timing is only 5 BTDC, but you must lock the timing on plastic plug ( bridge two outlets with wire).
#1008 of 1692 Poor acceleration at speed by photofinishron Oct 31, 2006 (3:04 pm)
Hey, I'm new here, hope someone can give me an answer.   I have a 91 Geo metro, Car runs great but has hesitant acceleration at speed. If it were a carburated car I'd say the accelerator pump was not working. But since this is EFI I'm lost. Anyone have this same problem or know what is wrong?   Many Thanks   Ron
#1009 of 1692 hesitant.... by vanillalatte Oct 31, 2006 (3:13 pm)
Could be a number of things: spark (did you change the plugs recently?), catalyzer could be plugged up... Replies to this message: pipeman (Nov 03, 2006 4:11 am)
#1010 of 1692 Re: 94 Metro [pipeman] by magicpsn Nov 02, 2006 (10:55 am)
Replying to: pipeman (Oct 31, 2006 7:27 am) Pipeman -   Thanks for the ideas and recommendations, I'll have to check the compression when I get a chance and take it from there.   Thanks again!!
#1011 of 1692 Re: hesitant.... [vanillalatte] by pipeman Nov 03, 2006 (4:11 am)
Replying to: vanillalatte (Oct 31, 2006 3:13 pm) Hello. Personally, I belive the catalyst only work on cold start ups. After engine is in normal operating temp. cat. converter is unnessesery item.. What I did - remove the Catal. Converter, cut of the front pipe and I cleaned the converter inside. Removed all "honey nest". Installed back and never have any problem. My OX. sensor work better, no more back pressure, better mpg. Passed emission - easy. Just do not mention about that. Pipeman
#1012 of 1692 Cat out! by vanillalatte Nov 03, 2006 (4:18 am)
Well.....it's not legal really, we are well aware of that. BUT you get better gas mileage, thus you are more efficient, therefore you pollute less...... Replies to this message: pipeman (Nov 03, 2006 4:50 am)
#1013 of 1692 Re: Catalist by pipeman Nov 03, 2006 (4:50 am)
Replying to: vanillalatte (Nov 03, 2006 4:18 am) THis is only suggestion - I idi for on reasen - save a money on new cata. converter and also improove mpg. Didn't damage the World.

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