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| Piston Rings http://www.club323f.com/forum/viewtopic.php?f=18&t=1201 |
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| Author: | Scotty Mac [ Sun Sep 05, 2004 4:57 pm ] |
| Post subject: | Piston Rings |
Hi Guys, posting this for a mate, he needs new piston rings in his 1.5 323, how hard is it for a garage to do and how much should it approx cost?? any advice would be helpful thanks Scott |
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| Author: | Smotter [ Sun Sep 05, 2004 10:49 pm ] |
| Post subject: | |
Interesting question - I was thinking of doing rings and big-end bearings on my 1.8 16v, and was wondering if anyone knew whether or not it can be done without removing the engine ? I've looked through my Haynes, and it doesn't actually specify, although it does appear that you can remove the head and the sump with the engine in place ... I'd rather do it myself if I could, especially since a friend of mine took his BMW bike to the official BMW dealer for a service, and it siezed on his way home, 'cause they forgot to replace the motor oil they drained from the motor ..... |
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| Author: | Lantis [ Mon Sep 06, 2004 2:47 am ] |
| Post subject: | |
hmmm im not sure u know i fink its gonna be costly tell u the truth dats my opinion i fink this site mite help u guys out there http://www.importperformanceparts.net/i ... mazda.html remember the 1.8 16v engine is a BP05 same as the mx5 !!! hmmm not too sure abt the 1.5 sorry! 
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| Author: | Mark.T [ Mon Sep 06, 2004 8:14 am ] |
| Post subject: | |
Careful there Lantis - not all MX-5 engines are the same. Interesting site though 
[b]Mark[/b] |
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| Author: | Stealth [ Mon Sep 06, 2004 8:41 am ] |
| Post subject: | |
You have to remove the whole engine for the piston rings as the bottom end needs to be taken out to replace them. It was going to cost me £900 to get my rings changed, so i just went for a new engine instead and it cost me almost the same price! |
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| Author: | Lantis [ Mon Sep 06, 2004 12:38 pm ] |
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its cool tanner i know that too thanks for the reminder had the site for sumtime now not sure if i will go that far depends on my finances haha hmmm stealth u tellin me it cost u £900 to buy and fit a new engine??? for me i believe i wont change the engine only cos i want to TRY and mod the current BP05 which is alot harder trust me got loads of white hair for it now!! neways just current took out an old induction kit and fitted my custom made HKS SPF neways the results as as follows ...... nice!!! haha |
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| Author: | Scotty Mac [ Mon Sep 06, 2004 4:15 pm ] |
| Post subject: | |
hi guys He has been offered a 1.8 engine is there any mods needed done as it's a 1.5 coming out? cheers |
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| Author: | Stealth [ Mon Sep 06, 2004 4:21 pm ] |
| Post subject: | |
Gearbox. Apart from that I wouldnt know. |
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| Author: | Scotty Mac [ Mon Sep 06, 2004 4:34 pm ] |
| Post subject: | |
but am i right in thinking that if i left the 1500 gearbox in, would that not give it a a fair but of tourque off the line? i might be totally wrong scott |
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| Author: | Smotter [ Tue Sep 07, 2004 7:44 am ] |
| Post subject: | |
I had a friend with a 2.0 V4 Cortina - he put a 3.0 V6 straight onto the V4 box. he didn't have the top-end you'd expect from a 3.0 V6, but nothing could touch him from traffic light to traffic light ..... |
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| Author: | Scotty Mac [ Tue Sep 07, 2004 8:31 am ] |
| Post subject: | |
is that because he kept the ols gearbox? would this damage it in time? Surly there aint much difference between a 1.5 and a 1.8 gearbox? Scott |
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| Author: | Smotter [ Tue Sep 07, 2004 9:12 am ] |
| Post subject: | |
Yup - he kept the original gearbox, and drove it around bloody hard for 2 years until it was stolen, and he never had any problems. I'd expect there is a greater power difference between a 2.0 V4 and a 3.0 V6 than there is between a 1.5 and a 1.8, so I'd presume that the 1.5 gearbox could handle the power from a 1.8, although I'm not a profesional, so don't quote me. I'll look up the ratios in my Haynes manual tonight and see what the difference is. |
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| Author: | Smotter [ Tue Sep 07, 2004 9:18 pm ] |
| Post subject: | |
Unfortunately, Haynes doesn't mention the ratios, however, it does say ... General information The vehicles covered by this manual are equipped with a 5-speed manual transaxle or 4-speed automatic transaxle. Information on the manual transaxle is included in this Part of Chapter 7. Service procedures for the automatic transaxle are contained in Chapter 7, Part B. The manual transaxle is a compact, two-piece, lightweight aluminium alloy housing containing both the transmission and differential assemblies. A F5M-R transaxle is used with the 1,6L and 1.8L SOHC engines and a G5M-R unit is used with the 1.8L DOHC engine for 1990 through 1992 model years. The 1993 and 1994 transaxles were desig-nated as F25M-R for SOHC engines and G25M-R for the DOHC engine. [color=red]The 1995 and later models use the F25M-R transaxle for both the 1,5L and the 1.8L DOHC engines[/color]. All transaxles are virtually identical except for different gear ratios. This would seem to imply that the 1.5 & the 1.8 DOHC use the same gear box. In case anyone is interested, I do have the ratios for the 1.8 and the 2.0 V6 form my owners manual ... [url]http://www.geocities.com/smotter.geo/Temp/Ratios.doc[/url] |
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| Author: | Scotty Mac [ Tue Sep 07, 2004 9:37 pm ] |
| Post subject: | |
thanks alot for your help and going to all the trouble 
scott |
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