Finally got an rx7 type r

[jazraymcbeath]

Hi finally got an rx7.

Car is showing about 50km I bought with no mot or tax. I did have a quick shot but due to not being roadworthy it was a quick tesdrive. Car was holding back and missing. But as it was so clean and had low miles I bought it.

After I had got it home. I looked over it more closely. I found the map sensor pipe had cracked ends. I then replaced all the vacum pipes. Engine ran great after.

Next issue was water out of overflow which had caps on the wrong way. When the caps where on the right way I am stil getting a small amount of water coming from overflow tank. The last owner has fitted it with a big radiator. But never fitted any fans. After more research I tried a champagne test. There are small fizzing bubbles so I take it seals have gone. Car starts fine cold or hot. No white smoke. I also removed the one way valve on my compression tester. Did a compression test on both chambers. Reading was just touching 6 bar. So looking like a rebuild.

Also wipers are very slow and started motor sticks rev counter and oil pressure guage all need looked at. I did an oil pressure test with a mechanical gauge was getting 2bar idle 4bar when reved then if revs where held would go back to just over 2 bar.

Just after I fixed vacum pipes and thought cooling issue had been resolved I manged to take it a few runs down a private road. Wow really like the feel of the car and I would say it feels quicker than my bpu+++ supra up to tripple figures. As far as I can see all the car has standard down pipe then freeflowing 3" exhaust. Mushroom filters and hks elbows. Runs 0.8bar of boost.  I looked at ecu there is no signs of soldering as both boards still have the protective varnish so no aftermarket epprom.  Am I missing something or are these cars really that quick.

[fil_auto]

Welcome to rotary heaven

[marf]

Yes, they are that quick. My Stage 1 300hp MR2 felt a bit pedestrian compared to my standard RX7 RS

[clive]

First up, welcome to Mazdarotaryclub.

Fortunatly you have been able to drive the car enough to find out what an awsome car you now have that will hopefully give you the insperation to get it up n running properly.

Sadly from what you have described with the water system the car would have been overheating badly due to loss of coolant with the caps the wrong way round because as soon as the car would have got hot it would have pushed water out.

"however" from your description there is the chance that a product called K-Seal may help, at least as a tempory fix till you decide what to do with the car, not to be confused with any kind a rad seal which blocks up the small water ways in a Rotary engine.

You should find a local accessory shop that will sell this.

I hope this helps

[jazraymcbeath]

What sort of levels should you have in both tanks?

When I say water is coming out overflow this is when warmed up heaters on full but no raradiator fans. I put a pipe from overflow tank to a plastic bottle and it caught 150ml of water. There was no overflow pipe on the car on a standard car does this just go to the inner wing or does it have a catch tank?

I might try radweld but don\'t realy like tempoary fixes. Not really wanting to get it road legal and find its overheating. Temp gauge has never gone over half way yet though.

Was really going to put supra back on road first. Have a t70 and Greddy emange for going single turbo. Could fit it on rx7 though.

Was looking at prices can import genuine o rings for just about £200 full rebuild kit for £1200. But noticed there is a guy on eBay will rebuild for £1400. Is he any good? Was really wanting to rebuild the engine myself. But my the time I take time off doing customers cars only to save a few hundred pound doesn\'t make sense.

Since I have been porting traditional engine for year what like to give it a street port. Is there templates available?

Finally what sort of power does a type r have with my mods on a fresh engine have. Even as it  is still having a hard time believing its faster than my supra that\'s well in the 400bhpmark. Supra is only 200kg heavier.

[nadz]

What sort of levels should you have in both tanks?

When I say water is coming out overflow this is when warmed up heaters on full but no raradiator fans. I put a pipe from overflow tank to a plastic bottle and it caught 150ml of water. There was no overflow pipe on the car on a standard car does this just go to the inner wing or does it have a catch tank?

I might try radweld but don\'t realy like tempoary fixes. Not really wanting to get it road legal and find its overheating. Temp gauge has never gone over half way yet though.

Was really going to put supra back on road first. Have a t70 and Greddy emange for going single turbo. Could fit it on rx7 though.

Was looking at prices can import genuine o rings for just about £200 full rebuild kit for £1200. But noticed there is a guy on eBay will rebuild for £1400. Is he any good? Was really wanting to rebuild the engine myself. But my the time I take time off doing customers cars only to save a few hundred pound doesn\'t make sense.

Since I have been porting traditional engine for year what like to give it a street port. Is there templates available?

Finally what sort of power does a type r have with my mods on a fresh engine have. Even as it  is still having a hard time believing its faster than my supra that\'s well in the 400bhpmark. Supra is only 200kg heavier.

someone quoting you £1400 for a rebuild is a good price but what is the work like. if you said you can get a rebuild kit for £1200 then that means £200 labour it wouldn\'t make any sense. your best of checking the company history before hand. but for rebuilds there is hayward rotary powergains steve rivett wgt jimmys who are well known for there work but prices reflect.

[neil_jdmr]

I might try radweld

DO NOT, Its will gunk up your water ways and destroy your engine. Stay away from Radweld!!!!!!!!!

[jazraymcbeath]

Rotarymotion he worked at Hayward rotary add say. Gives a 2 year warranty. Anyone had any dealings with them.

[jazraymcbeath]

DO NOT, Its will gunk up your water ways and destroy your engine. Stay away from Radweld!!!!!!!!!

Was only thinking about. As I said not a fan of quick fixes.

[boosted]

Clive stated Kseal Not Radweld to totally different products and often get put in the same basket!
 Kseal does not gunk up the coolant system like radweld google it.... used it myself on a cracked cylinder head that was dripping coolant at rate of 1 litre every 5 mins (mate overtightened a spark plug) .....3 tables spoons of kseal 10 mins later no drip! Next day whole 125 miles on track ! old golf mk2 gti that we used for rest of summer thrashing on track days. At £12.95 worth a very serious punt!

....also mate had an Audi A4 1.8 turbo ( 20v1. loosing expansion bottles worth of coolant every 2000 miles....been in several garages and no one could find leak....so small prod evaporating on exit....1 teaspoon later no more issues.....i was very cynical about kseal but it worked for me and i have a bottle in my garage now!

btw i dont work for Kseal or have any connection to them in any way!

...fix the 7 up first over the supra you wont regret it....

....and check out the rebuild guys website....info you need is on there!

Jon
Kseal MD

[boosted]

Levels wise mate about an inch below each cap...plus put your heater circuit on hot mate as if shes lost coolant that may have air in as well so need to purge that area of air.
 Run it from cold and fill with water ( no point wasting coolant at mo) and bit of bubbling over normal as it gets warm on your fingers 1 final top up and caps on. run til gauge at 8 pm few 3 k revs to get the waterpump spinning.  Leave til cold and no pressure in system open caps top up and repeat cycle. Then check again and levels should be maintained from here
Gauge on a rx7 fd is non linear so over half way very hot....
Do some searches on here some great reading and your knowledge will quickly grow...we\'ve all been there .....there great cars....but a tad fragile so issues that you\'d get away with in a piston engine are more of a deal in a rotary...i learnt the hard way and blew mine up...if id left well alone she\'d still be sat on the drive...but no regrets...was mucho fun...and by the way welcome to the club!

[Grant Monkhouse]

Rotarymotion he worked at Hayward rotary add say. Gives a 2 year warranty. Anyone had any dealings with them.

Rotarymotion are quoting you 1400 quid for a rebuild with 2 year warrenty?! Someone is telling lies!

A standard rebuild, engine removal, engine install + garentee is ~3500 from a reputable specialist.

[boosted]

also solid cap on metal header and sprung cap on plastic header....i made that mistake as well....

[davehg]

Are you in wick Bristol?

[jazraymcbeath]

Are you in wick Bristol?

No wick near john o groats.