Cosmic73

Hi, can anyone recommend std piston rings for a vq35de?

OEM are rare and expensive, I've seen Wiseco and CP ones but I believe these are only compatible with Wiseco or CP pistons?

I've also seen Hastings ones on eBay for £100ish

I've no idea what to get.

Bad news with the crank. The big end bearing has spun and it's also bent slightly. I'm getting the mains and pin journals reground to straighten back up and fit undersized bearings.

I've had a very good time in the office this evening and definitely got to the root cause of the engine knock.

The main bearings don't look too bad considering they've done 140k miles.

I'm keeping my fingers crossed the big end bearing that caused the knock hasn't damaged the crank. I'll find that out on Thursday!  🙂

After borrowing my bosses engine lift, I finally managed to drop the block onto a dolly with mm of clearance to slide under the bumper!!

20 minutes ago, davey_83 said:

Bet that's a relief about the heads pal 😉

 

Too right, especially after seeing loads of recent posts of coolant leaking into the spark plug tubes. 🙂

Bit of an update, my new valve seals arrived yesterday and today I've spent rebuilding the heads. The heads passed their pressure tests and had a very light skim at Knights engineering.

The valves were minging and I had them vapor blasted.

Valves before;

Valves after;

Head now

Nice pics, it looks pristine.

I'll be stripping my block down over Christmas and was wondering;

Did you fit new rings on the same pistons or did you need a rebore and oversized pistons?

Did you get away with std main & big-end bearings on the crank?

5 hours ago, AlexRussell99 said:

Haha no way, I owned this car for a tiny amount of time last year, I had my supercharged 350z at the time so ended up selling it to my friend for the same price I paid for it. He unfortunately didn't own it for too long and had the new clutch installed. 

 

 

 

 

Will be following this closely!

Hey Alex, it's a small world, if you're around japfest next year or other club meets you'll see it again. Just gotta pull my finger out and fix it 🙂

41 minutes ago, ShortPaul said:

That's just what I was going to say 😂

Ah, my mobile has tiny buttons and I mistyped. I meant 300.

8 hours ago, Willsy1980 said:

Cracking thread this one, coming along well.

You staying stock or going to go FI in the process ?

Cheers Willsy. 400bhp is plenty enough for me so I'll be staying stock

1.andy James. 1x club ticket Tracktime 09.40

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10 hours ago, davey_83 said:

Nice work fella. For the costs I came recommend these as an upgrade over the stock bushes. 

 

https://www.ebay.co.uk/itm/224577346637?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=n1ABvbYFRHW&sssrc=4429486&ssuid=UVSJOLRJSwe&var=&widget_ver=artemis&media=COPY

 

 

Hey Dave, you're a mind reader! That's exactly what I wanted and my wife is getting me them for Christmas 🎄🎄,

Nice one 🙂

Finally decided to drop the block down instead of lifting it out.

By removing the roll bar (which needs powder coating anyway) I've now plenty of space to pull the block out the tranny and down. 🙂

I've always like triumph TRs and your TR6 is a good example.

I was after a project TR7 or 8 but they don't come up often.

The British motors museum at Gaydon has a concept TR25, be great if that went into production.

https://www.britishmotormuseum.co.uk/news/triumph-tr25-by-makkina

Good luck with your sale 🙂

Long overdue imo.

I've nothing against a spirited drive, but there's some bikes and cars have totally illegal exhausts where the noise, even at idle is absolutely deafening you can hear it for miles.

I've just removed the front brace from a 2006 Z and it was very simple to do.

Just spray the 8 bolts with wd40 the day before and use a bastard big breaker bar to crack off the nuts.

Even the front subframe wasn't too bad, again loads of wd40 and a breaker bar.

My Winter project post describes in more detail. Both parts are getting powder coated.

It's a shame to scrap a stunning car that's served you well for the sake of a few bolt off parts.

This evening I managed to remove the front subframe, bit fiddly but went ok. I'll be send that and the brace for powder coating.

1 hour ago, Andy_Muxlow said:

1. andy James. 1x club ticket Tracktime 09.40

2. Andy_Muxlow. 1 x club ticket.

3. Neil mcnab, 1 X club ticket Tracktime 15.40

On 12/11/2023 at 18:07, Cosmic73 said:

I've got a difficult choice. Do I now,

1. Lift the block out? or

2. Remove the subframe and drop the block?

Since the subframe is quite rusty and could do with a refurb, I thought I'd remove it, get it blasted and powder coated.

I managed to remove the brace today. Thank the lord for my breaker bar 🙏🙏

 

 

But not sure how to remove the subframe. Anyone done this before?

This evening I started removing the front subframe to realise the block can't be lowered because the steering rack is in the way, which means I'll have to lift the block up and out instead.

Not the end of the world, but just pain to set up the lift 😞

This evening I managed to remove the valves which I'll take to get soda blasted tomorrow.

I'll also drop off the heads at Knights engineering for pressure test and if all ok, a skim.

I've got a difficult choice. Do I now,

1. Lift the block out? or

2. Remove the subframe and drop the block?

Since the subframe is quite rusty and could do with a refurb, I thought I'd remove it, get it blasted and powder coated.

I managed to remove the brace today. Thank the lord for my breaker bar 🙏🙏

But not sure how to remove the subframe. Anyone done this before?

My heads are now off. I'll remove the valves, get them soda blasted and pressure test and skim the heads.

1 hour ago, Jixaman said:

Ah know, but ahm not stressing over it now ah know the problem was a sensor and not something catastrophic...   Cheers...

Ah, didn't see your previous post, glad it's nothing too serious then

The oil pump is a gerator type and is fixed displacement. This means the volume of oil and it's pressure output is proportional to it's speed.

So at low rpm it had minimum pressure. 

Obviously as cars get older the bearings wear allowing more pressurised oil to get past.

It may be a sign the engine is coming to the end of its service life and needs a rebuild.

8 hours ago, Woodland said:

This is my 2018 370z GT which i bought recently.

 

This is a new chapter for me as i have never owned a Japanese car before, i have read the owners manual and also sections of the workshop/repair manual as i want to learn about how the vehicle works.

 

I managed to take it out for the first time last Friday night for a 300 mile shake down cruise and i am very happy with the car and have no regrets. 

 

Anyway, hi. 

 

Very nice 🙂