Do 13brew Have Issues With Oil Being Delivered?
09-25-2003, 06:37 PM
#11
Senior Member
Thread Starter
Join Date: Jan 2003
Location: Portland Oregon
Posts: 292
Well I was talking to Joel up at pineapple, and he seemed to think that the bearing surfaces could use more than the standard oiling.
He said there are a lot of engines that come in with bad bearings and that there oiling mods cure those problems.
Do you guys feel that the bearings in the REWs could use more oil flow in this area, or are they OK from what you guys have seen?
Any personal experiences with this kind of wear?
Thanks
He said there are a lot of engines that come in with bad bearings and that there oiling mods cure those problems.
Do you guys feel that the bearings in the REWs could use more oil flow in this area, or are they OK from what you guys have seen?
Any personal experiences with this kind of wear?
Thanks
09-26-2003, 10:23 AM
#12
Senior Member
Join Date: Jun 2003
Location: Grand Prairie, TX
Posts: 917
Originally Posted by rotarypower101' date='Sep 25 2003, 03:37 PM
Well I was talking to Joel up at pineapple, and he seemed to think that the bearing surfaces could use more than the standard oiling.
He said there are a lot of engines that come in with bad bearings and that there oiling mods cure those problems.
Do you guys feel that the bearings in the REWs could use more oil flow in this area, or are they OK from what you guys have seen?
Any personal experiences with this kind of wear?
Thanks
He said there are a lot of engines that come in with bad bearings and that there oiling mods cure those problems.
Do you guys feel that the bearings in the REWs could use more oil flow in this area, or are they OK from what you guys have seen?
Any personal experiences with this kind of wear?
Thanks
This is a subject that I've just recently been paying alot more attention to. On the last engine I built (3 days ago; S5 13BT 4-port), I modified four places on the front cover's machined oil galleys, I replaced the rotor and gear bearings with new ones, I changed the oil pressure regulator to an 80/85psi unit, and I also use Weber 2mm air corrector jets in-place of the ball 'n spring units in the eccentric shaft. Only time will tell if it all works but I suspect it'll work alright. Idle oil pressure is about 25 to 30psi and 2500rpm+ oil pressure is around 75 to 80psi. Not too bad.
Anybody else have any info on the 105/110psi factory race oil pressure regulator that's on the Mazdatrix website? I'd like to build an engine that can rev past factory redline and still sustain oil pressure and good bearing lubrication.
B
09-30-2003, 01:32 AM
#13
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Join Date: Aug 2001
Location: Miami
Posts: 84
Originally Posted by setzep' date='Sep 23 2003, 05:10 PM
[quote name='chase78' date='Sep 23 2003, 10:59 AM'] AS far as you Pressure regulator question goes
i can not pull the num,ber from the top of my head so just go to
iluvmy7.com and pull the numbers for the factory manual. I do know that the front plunger is lower then the rear.
i can not pull the num,ber from the top of my head so just go to
iluvmy7.com and pull the numbers for the factory manual. I do know that the front plunger is lower then the rear.
Yeh I believe the front is set to around 150 to 170psi.
The factory manual got that info though.
09-30-2003, 05:16 AM
#14
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Join Date: Sep 2002
Posts: 2,550
Originally Posted by crispeed' date='Sep 29 2003, 10:32 PM
[quote name='setzep' date='Sep 23 2003, 05:10 PM'] [quote name='chase78' date='Sep 23 2003, 10:59 AM'] AS far as you Pressure regulator question goes
i can not pull the num,ber from the top of my head so just go to
iluvmy7.com and pull the numbers for the factory manual. I do know that the front plunger is lower then the rear.
i can not pull the num,ber from the top of my head so just go to
iluvmy7.com and pull the numbers for the factory manual. I do know that the front plunger is lower then the rear.
Yeh I believe the front is set to around 150 to 170psi.
The factory manual got that info though. [/quote]
Whoa! Crispeed has crossed over from the dark side..
10-01-2003, 12:48 AM
#17
Senior Member
Join Date: Jun 2003
Location: Grand Prairie, TX
Posts: 917
Originally Posted by Dragon' date='Sep 20 2003, 02:03 PM
Not sure if you have to, since I don't mess with FC's much, but you can shim it with washers from a 10mm bolt by inserting them between the spring and the cap you remove..
B
10-01-2003, 01:31 AM
#18
Member
Join Date: Aug 2001
Location: Miami
Posts: 84
Originally Posted by BDC' date='Sep 30 2003, 09:48 PM
What I'd like to know is how many washers to add. I'd guess three or four M5 flat washers off the top of my head.
B
B
Most of the times each 1/16th is good for an additional 5psi over operational pressures. The real trick is to shim the rear regulator so that the valve is position at midway in the oil return/release passage/hole when it's fully depressed in it's opened position.
Personaly I would run the 105/115psi regulator with the multi window REW type gears and bearings.
Most bearing related failure if everything else checks out ok is due to wrong tolerances during assembly.
10-01-2003, 01:38 AM
#19
Member
Join Date: Aug 2001
Location: Miami
Posts: 84
Originally Posted by Dragon' date='Sep 30 2003, 02:16 AM
Whoa! Crispeed has crossed over from the dark side.. 
welcome
10-01-2003, 01:42 PM
#20
Senior Member
Join Date: Jun 2003
Location: Grand Prairie, TX
Posts: 917
Originally Posted by crispeed' date='Sep 30 2003, 10:31 PM
[quote name='BDC' date='Sep 30 2003, 09:48 PM'] What I'd like to know is how many washers to add. I'd guess three or four M5 flat washers off the top of my head.
B
B
Most of the times each 1/16th is good for an additional 5psi over operational pressures. The real trick is to shim the rear regulator so that the valve is position at midway in the oil return/release passage/hole when it's fully depressed in it's opened position.
Personaly I would run the 105/115psi regulator with the multi window REW type gears and bearings.
Most bearing related failure if everything else checks out ok is due to wrong tolerances during assembly. [/quote]
I didn't think the FD gears fit or were useful. After looking at the oil galleys on them, unless I'm mistaken, they don't match up to the galleys on the FC front and rear irons. Am I off on this?
B