1st time engine builder and the shit locked up. What did I do wrong?

mofo · 06-22-2010, 08:11 PM

I rebuilt my engine for the 1st time a 13b engine and while I roadtesting the car, the engine locked on me; not the transmission ,so what could be my mistake

moremazda · 06-22-2010, 08:30 PM

You won't know until you pull it apart.

mofo · 06-22-2010, 08:33 PM

will find out tomorrow after work

***TitaniumTT*** · 06-22-2010, 08:45 PM

Quote:

Originally Posted by moremazda

You won't know until you pull it apart.

True story

2gslse · 06-22-2010, 08:58 PM

Sorry to hear about the engine/more downtime on the car
It could be anything but I would guess oil related (pickup fell off or losing oil out between the front cover and front iron)
post some pics when you tear it down.

***TitaniumTT*** · 06-22-2010, 09:05 PM

& make sure you try to rotate it after each step to hone in on the problem

RICE RACING · 06-22-2010, 09:30 PM

I have built hundreds of engines since the very early 1990's and never had one seize or lock up, have seen ones that have though and all have been oil system failure related.

Oil pick up
No engine oil (oil line leaks, broken sump)
Oil pump drive failure (small key not installed ! or aligned properly)

Check the pick up when you take the sump off, check the oil pump drive, check the thermal pellet in the front of the E shaft, check the oil galleries in the E shaft (as I saw one that was blocked! and caused a front rotor to not get any oil and seize hard on the shaft. Look at everything in the oil system (look for oil in sump lol) and you will find the cause of why it "locked up".

lack of oil supply (flow and pressure) will be the only statistically most probable thing that will lock up a rotary, that and snapping the E shaft in half lol.

***TitaniumTT*** · 06-22-2010, 09:35 PM

Edit - I missed the while rd testing part... I thought it was assembled and rotated.

The used locked up engine that I bought was built using a hodgepodge setup of S5 and S6 front cover pieces that didn't mix well and seized the front stat bearing to the e-shaft.

Make sure you take pics so we can determine the cause, or bicker about it like keyboard mechanics

N.RotaryTech · 06-23-2010, 01:03 PM

Quote:

Originally Posted by TitaniumTT

Make sure you take pics so we can determine the cause, or bicker about it like keyboard mechanics

mofo · 06-27-2010, 07:41 PM

Here's some pics of what I found out so far

***TitaniumTT*** · 06-27-2010, 08:51 PM

Could be a number of things.........

First of all, did you prime the oil system before starting the car?
Second, are you sure all the front bearing parts were from the correct series?
Third, some shit left over in the oilsystem that got pushed out when there was oil pressure and fragged the bearing

mofo · 06-30-2010, 07:55 AM

I think that I will go w/the 1st answer, 'cause I know for fact that I did not prime the oil system.
Thanks

RICE RACING · 06-30-2010, 08:15 AM

In one picture the oil sprayer for the front rotor looks like it is wound out??? if this is so it will cause low oil pressure (could be the root cause).

It is hard to guess over the internet:

But next time:
* Ensure those sprayers are loctited in and tightened hard.
* Crank is 100% clean (oil ways).
* Lube all parts with petroleum jelly (Vasoline) lightly.
* Crank motor till you have oil pressure before starting it.
* Check function of thermal bypass in front of crank and make sure its installed correctly to.

Short of any foreign material or grossly out of spec bearing parts aside from other things I mentioned in my first reply you wont *touch wood* have anything of this sort happen again.

Good Luck with it all

project86 · 07-01-2010, 10:12 PM

This is all good to know since im gonna be rebuilding mine soon. im also a building newb.

mofo · 07-04-2010, 01:51 PM

Thanks all you guys for your comments and I hope on my next one it wont be the same.

06-22-2010, 08:11 PM	#1
mofo The Newbie Join Date: Feb 2009 Posts: 14 Rep Power: 0	1st time engine builder and the shit locked up. What did I do wrong? I rebuilt my engine for the 1st time a 13b engine and while I roadtesting the car, the engine locked on me; not the transmission ,so what could be my mistake Last edited by mofo; 06-22-2010 at 08:23 PM.

06-22-2010, 09:05 PM	#6
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	& make sure you try to rotate it after each step to hone in on the problem __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

06-22-2010, 09:30 PM	#7
RICE RACING Don Mega Join Date: Dec 2008 Location: Utopia Posts: 1,688 Rep Power: 18	I have built hundreds of engines since the very early 1990's and never had one seize or lock up, have seen ones that have though and all have been oil system failure related. Oil pick up No engine oil (oil line leaks, broken sump) Oil pump drive failure (small key not installed ! or aligned properly) Check the pick up when you take the sump off, check the oil pump drive, check the thermal pellet in the front of the E shaft, check the oil galleries in the E shaft (as I saw one that was blocked! and caused a front rotor to not get any oil and seize hard on the shaft. Look at everything in the oil system (look for oil in sump lol) and you will find the cause of why it "locked up". lack of oil supply (flow and pressure) will be the only statistically most probable thing that will lock up a rotary, that and snapping the E shaft in half lol. __________________ www.riceracing.com.au Worlds best Apex Seals Coil on Plug Water Injection ECU Calibration

06-22-2010, 09:35 PM	#8
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	Edit - I missed the while rd testing part... I thought it was assembled and rotated. The used locked up engine that I bought was built using a hodgepodge setup of S5 and S6 front cover pieces that didn't mix well and seized the front stat bearing to the e-shaft. Make sure you take pics so we can determine the cause, or bicker about it like keyboard mechanics __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-** Last edited by TitaniumTT; 06-22-2010 at 10:22 PM.

06-27-2010, 08:51 PM	#11
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	Could be a number of things......... First of all, did you prime the oil system before starting the car? Second, are you sure all the front bearing parts were from the correct series? Third, some shit left over in the oilsystem that got pushed out when there was oil pressure and fragged the bearing __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

06-22-2010, 08:30 PM	#2
moremazda shookmotorsports.com Join Date: Apr 2008 Location: Rockford, IL Posts: 108 Rep Power: 18	You won't know until you pull it apart.

06-22-2010, 08:33 PM	#3
mofo The Newbie Join Date: Feb 2009 Posts: 14 Rep Power: 0	will find out tomorrow after work

06-22-2010, 08:58 PM	#5
2gslse Rotary Fanatic Join Date: Apr 2008 Location: front royal va Posts: 440 Rep Power: 18	Sorry to hear about the engine/more downtime on the car It could be anything but I would guess oil related (pickup fell off or losing oil out between the front cover and front iron) post some pics when you tear it down.

06-30-2010, 07:55 AM	#12
mofo The Newbie Join Date: Feb 2009 Posts: 14 Rep Power: 0	I think that I will go w/the 1st answer, 'cause I know for fact that I did not prime the oil system. Thanks

06-30-2010, 08:15 AM	#13
RICE RACING Don Mega Join Date: Dec 2008 Location: Utopia Posts: 1,688 Rep Power: 18	In one picture the oil sprayer for the front rotor looks like it is wound out??? if this is so it will cause low oil pressure (could be the root cause). It is hard to guess over the internet: But next time: * Ensure those sprayers are loctited in and tightened hard. * Crank is 100% clean (oil ways). * Lube all parts with petroleum jelly (Vasoline) lightly. * Crank motor till you have oil pressure before starting it. * Check function of thermal bypass in front of crank and make sure its installed correctly to. Short of any foreign material or grossly out of spec bearing parts aside from other things I mentioned in my first reply you wont touch wood have anything of this sort happen again. Good Luck with it all __________________ www.riceracing.com.au Worlds best Apex Seals Coil on Plug Water Injection ECU Calibration

07-01-2010, 10:12 PM	#14
project86 Can't.Make.Up.My.Mind. Join Date: May 2009 Location: Murfreesboro, TN Posts: 1,377 Rep Power: 18	This is all good to know since im gonna be rebuilding mine soon. im also a building newb. __________________ '90 GTUs Stay up to date with my photography '06 Toyota Highlander Hybrid '10 Toyota Prius "Initial Success or Total Failure"

07-04-2010, 01:51 PM	#15
mofo The Newbie Join Date: Feb 2009 Posts: 14 Rep Power: 0	Thanks all you guys for your comments and I hope on my next one it wont be the same.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode