So I got my compression test done...
#1
Rotary Freak
Thread Starter
iTrader: (4)
Join Date: Aug 2005
Location: US
Posts: 2,150
Likes: 0
Received 0 Likes
on
0 Posts
So I got my compression test done...
Cold Test:
Rotor1 - 6.4kg, 6.0kg, 5.5kg @ 250rpm
Rotor2 - 5.6kg, 5.6kg, 6.4kg @ 251rpm
Hot Test:
Rotor1 - 4.0kg, 3.6kg, 4.1kg @ 234rpm
Rotor2 - 4.6kg, 4.9kg, 4.3kg @ 268rpm
I know the car needs the engine/seals redone. The question for me is, do I just buy a whole new motor from a reputable builder (lucky7 has a motor for sale, and some other shops have some motors for sale) or do I just bring it to a local mechanic and have them replace the seals.
The motor right now has brand new rotor housings (2,000 miles on them) with 3MM seals and is streetported.
I've been quoted by Karack (Ben) to pull the engine, replace the seals and put it back in, however, he wouldn't be able to get to the car until a month and a half. My worry is that although the engine has new rotor housings, how do we know that the rotor housings or even the rotors may be damaged and I will need to buy new housings/rotors and the cost is a lot more than buying a new engine built by someone and then just paying someone to pull the motor and place the new one in. I could then sell the old motor to make back some of my money.
What would be the best thing to do?
Rotor1 - 6.4kg, 6.0kg, 5.5kg @ 250rpm
Rotor2 - 5.6kg, 5.6kg, 6.4kg @ 251rpm
Hot Test:
Rotor1 - 4.0kg, 3.6kg, 4.1kg @ 234rpm
Rotor2 - 4.6kg, 4.9kg, 4.3kg @ 268rpm
I know the car needs the engine/seals redone. The question for me is, do I just buy a whole new motor from a reputable builder (lucky7 has a motor for sale, and some other shops have some motors for sale) or do I just bring it to a local mechanic and have them replace the seals.
The motor right now has brand new rotor housings (2,000 miles on them) with 3MM seals and is streetported.
I've been quoted by Karack (Ben) to pull the engine, replace the seals and put it back in, however, he wouldn't be able to get to the car until a month and a half. My worry is that although the engine has new rotor housings, how do we know that the rotor housings or even the rotors may be damaged and I will need to buy new housings/rotors and the cost is a lot more than buying a new engine built by someone and then just paying someone to pull the motor and place the new one in. I could then sell the old motor to make back some of my money.
What would be the best thing to do?
#2
Space cadet
iTrader: (78)
the best thing to do is take apart the motor..
and buy some of the small tools you need to check the specs on the motor...
but if the rotor housings and other parts are new.,. i would just get your current block rebuilt. if it has low milage..
and which seals need to be replaced??? the apex seals? springs?,water seals????
depending on which seals you need. the motor should be fine..
and buy some of the small tools you need to check the specs on the motor...
but if the rotor housings and other parts are new.,. i would just get your current block rebuilt. if it has low milage..
and which seals need to be replaced??? the apex seals? springs?,water seals????
depending on which seals you need. the motor should be fine..
#3
Rotary Freak
Thread Starter
iTrader: (4)
Join Date: Aug 2005
Location: US
Posts: 2,150
Likes: 0
Received 0 Likes
on
0 Posts
We don't know what seal needs to be replaced as I just got a compression test, but my mechanic said that it could either be a side seal or apex spring since we are thinking he didn't break the engine in properly and just romped on it since getting it.
#5
Space cadet
iTrader: (78)
lets hope its just flat springs because all would would need is the seal kit,( just would need apex springs, maybe side seals, corner seal springs, water seals, oil seals, etc)
but some times low compression can be cause by a chipped apex seal( lets hope its not)..
well in either case let us know how it goes..
#6
Rotary Freak
Thread Starter
iTrader: (4)
Join Date: Aug 2005
Location: US
Posts: 2,150
Likes: 0
Received 0 Likes
on
0 Posts
Seeing that I knew the car needed a rebuild before I bought the car, I still got a deal on the car. Now if he would of sold me the car at the price he was asking and I didn't know that it needed a rebuild I would have been pissed. He took of $4,000 to help cover for a rebuild. If it's just the seals that need to be replaced, the cost/labor is around a $2,000 job so I'm still up $2,000 for any small things that need to be replaced (even if a rotor or housing needs to be ordered, I'm still up)
Thread
Thread Starter
Forum
Replies
Last Post
ZaqAtaq
New Member RX-7 Technical
2
09-05-15 08:57 PM