Issue with Rebuild
#1
Senior Member
Thread Starter
iTrader: (1)
Join Date: Dec 2007
Location: socal
Posts: 444
Likes: 0
Received 0 Likes
on
0 Posts
Issue with Rebuild
Okay, so i have a 88 tii and i got my engine rebuilt by a professional rotary shop and i'm having issues with it. First its a full rebuild with seals gaskets and bearings. the rotors and housing are in good condition( thats what they said) i had to replace the rear housing and rotor though due to apex seal damage, also i had my irons lapped. Now the issue is the after 1200 miles the compression is still low, really low actually. On a factory mazda compression tester it shows about 6.4 front, and rear is 6.3...... which means i need a rebuild right? i babied the car, never going above 3.5rpm and never went into boost. Change my oil at first 100miles, then 500, then 1000. I'm using premix also.
I took it to the shop and they said to drive it another 1000miles or so because it could be the bearings still breaking in and stuff.... but i really don't think its going to change much. A new rebuild with all new seals is suppose to have compression around 9 right? What do you guys think????? They are good people and i really don't think they are trying to screw me, but i don't think another 1000 miles will change the compression that much.
I took it to the shop and they said to drive it another 1000miles or so because it could be the bearings still breaking in and stuff.... but i really don't think its going to change much. A new rebuild with all new seals is suppose to have compression around 9 right? What do you guys think????? They are good people and i really don't think they are trying to screw me, but i don't think another 1000 miles will change the compression that much.
#4
well rested,buffet o food
If this top secret company is reputable, they will not hesitate to make good on their rebuild.
Save all receipts, document all communication and mileage, and follow their break in specifications. After that, comp test and contact them again, knowing 100% where you stand.
If there is an issue, justifyably posting your account on the forums can add some leverage
+ lawyer if necessary.
john ny
Save all receipts, document all communication and mileage, and follow their break in specifications. After that, comp test and contact them again, knowing 100% where you stand.
If there is an issue, justifyably posting your account on the forums can add some leverage
+ lawyer if necessary.
john ny
Trending Topics
#8
Senior Member
Thread Starter
iTrader: (1)
Join Date: Dec 2007
Location: socal
Posts: 444
Likes: 0
Received 0 Likes
on
0 Posts
the only reason why i don't want to mention the name of the shop is so people don't think differently about them. also, i do have a warranty on the rebuild.... i year unlimited miles, just not on apex seals.
I don't have hot start problems.... just cold.
I don't have hot start problems.... just cold.
#9
I'd say drive it another 1000 miles and vary your driving style a little. If I were you, I'd drive it harder this time for sure, maybe not full boost or redline? but definitely a lot harder than never surpassing 3.5k rpms. My understanding of a break in procedure was not to baby it, but to drive it at varying speeds and various loads, but not neccesarily full boost or redline until you get to 1000 miles. maybe i'm wrong about that though. Did you check the compression with the engine hot and and the throttle body propped open?
#20
Senior Member
Thread Starter
iTrader: (1)
Join Date: Dec 2007
Location: socal
Posts: 444
Likes: 0
Received 0 Likes
on
0 Posts
well, i have an update on the rebuild. I took it back and they said that all the coolant seals and gaskets on the irons and the housings were shot, so they thought that it was leaking so it wasn't compressing. That didn't work, they put new gaskets and seals on and still it wasn't any good. Now they are going to put on different rotor housings. I just hope that they remember that they need to put more torque on the irons and housings since they were lapped.
Thread
Thread Starter
Forum
Replies
Last Post
[For Sale] Scratch & Dent, Used, and Open-Box Sale!
SakeBomb Garage
Vendor Classifieds
5
08-09-18 05:54 PM