Jump to content
SAU Community

Recommended Posts

Not nice.I just pulled a motor down that had something from the intake go thru a cylinder and when i pulled out the piston it had a crack from the oil squirter cutout up the skirt so i pulled the others out and everyone was the same.The motor is only a low miler and never had a max hp tune and was running modest boost.

Im not blaming the piston yet as i want to give the dealer a chance to find out whats happened but the bore clearances are to their spec.

I have been told that the pistons come to Australia with out the oil squirter cutout and that its added here and looking at it this looks the case as the cutout has a very different finish to the rest of the machining on the piston,The cut has been done with a coarse grade stone etc with the cut going from the outside of the skirt to the inside and the cracks all started in these deep scratches so if anyone is building a motor with these pistons and they are cut the same i would recommend you get out the die grinder and polish this area or wait till i get an answer from the distributor on what has happened but as this guy go this piston and rod package thru an Internet shop it may slow the prosess a bit.

This may be a one of as Venolia make the pistons in Australias fastest Top fueler.

Link to comment
https://www.sau.com.au/forums/topic/94541-venolia-pistons/#findComment-1709599
Share on other sites

I have had the same problem with my venolia pistons

Im using a rb26 crank and rods in a rb25 block with venloia pistons and N1 rings running 22psi. the motor had less than 10k and 12 months on it and distyroyed no4 pistons for other reasons. When i stripped the motor i found cracks on all 6 pistons in the same spot leading up from the oil squiter area.

The pistons were installed with a clearance of .005 as per recomeded ( specs from venolia are .006 to .01 i believe - can someone correct me on this) and knocked the bores around a bit to a clearance of .0065 when removed.

Currently the pistons are at a piston maker in melbourne for their expert veiws, and a quote on a set of custom units to be made.

I will post up any further news when it comes to hand.

Link to comment
https://www.sau.com.au/forums/topic/94541-venolia-pistons/#findComment-1734701
Share on other sites

They are terrible pistons, you only have to look at one and examine its design to understand.

From memory the skirts are VERY thin, compared to other aftermarket pistons like Arias, CP or ACL

I personally have heard nothing but terrible reports about them, and know of a handful of freshly build RB26's that had to be pulled down and have pistons replaced due to the majority of the new Venolia pistons cracking around the skirt.

Link to comment
https://www.sau.com.au/forums/topic/94541-venolia-pistons/#findComment-1735012
Share on other sites

I have run them for 350km on 200kw before they spat the gugeon pin out the side, steer clear, they are junk. Go CP or Arias.

Since your experience I have come across two other engine builders who say they won't touch Venolia for that very reason.

Its a bugger how you always 'hear' about these things after something goes wrong.

Don't forget Wiesco, I've had them in mine for 25,000km's. No oil usage. :)

Edited by Cubes
Link to comment
https://www.sau.com.au/forums/topic/94541-venolia-pistons/#findComment-1735030
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • PayPal is a safe, online payment system that enables businesses and individuals to safely send and receive money, making it an indispensable tool in both personal and professional contexts. However, many users wonder how to send money on PayPal? Don't be alarmed if PayPal is new to you - all the steps can be found by visiting merchant sites with links marked "Pay or send money". Once clicked, select payment method, amount, and add message or note for recipient(s). Upon successful transaction completion you will receive an email containing details of transaction. Let’s start by understanding how PayPal works, how money transfers from banks to PayPal and using various payment methods. Moreover, to transfer money between PayPal and bank, head to the Wallet section and click "Add Account", selecting either "Transfer within seconds with debit" or "Transfer between 3-5 days with bank", and following any instructions shown on screen until completed successfully.   How to Send Money Over PayPal: The Basics Before sending money through PayPal, first create an account. Here is how to set-up a PayPal account: ·         Click “Sign Up” on either the PayPal website or app to enter your basic information such as email address or name into their system. ·         Link your bank account, debit card or credit card directly with PayPal so you can fund transactions directly using these accounts. ·         Verifying your PayPal account will enable you to send and receive more funds. Typically, PayPal requires that you verify your credit card or bank account by making small deposits into it. ·         Once your PayPal account has been established, you can send money through it.   How Do I Send Money to Someone on PayPal? After creating a PayPal account, you can easily send money through it. Here is how to send money to someone on PayPal: ·         First of all log into your PayPal account ·         Once on your dashboard, click on "Send & Request Tab." ·         After this enter the recipient's email or mobile phone number. ·         Enter the amount you wish to send to someone. ·         At last, recheck all the details and click "Send Payment" to complete your transaction if everything looks in order.   How Can I Send Money PayPal for Goods and Services? PayPal provides a safe method for individuals and businesses alike to transfer funds online, both personally and commercially. When paying for goods or services there are additional protections in place both for buyers and sellers. PayPal Buyer Protection offers you peace of mind when paying for products or services with PayPal. In the unlikely event that there is an issue with a transaction, if there are any discrepancies you may dispute it and be eligible for a possible refund. You need to follow the same steps to send money, but select Paying for Services or Goods when prompted. In fact, this extra layer of protection will keep your account safe from fraudulent attacks.   How to Transfer Money to PayPal from Bank? Here is how to transfer money from PayPal from bank: ·         Log into PayPal using either its app or website. ·         Click "Add Funds" in the Wallet section, and add money directly from your bank to your PayPal account. ·         If you have linked your bank account with PayPal, select it under Funding options to select it as your funding option. ·         Enter the amount you would like to transfer to PayPal from your bank balance. ·         Click Add Funds. It typically takes several days for funds to arrive on your PayPal account.   FAQ How can I send money PayPal? Log into your PayPal account, select "Send and Request," enter in your recipient's phone number or email address, select the amount due, payment method of choice and click on "Send Now" - quickly and safely sending money via PayPal is now an efficient method of money transfers!   How do I transfer money to PayPal from a bank? Log into PayPal and select "Add Funds" to transfer money from your bank to PayPal. Select your account number, input an amount, and confirm it. Though the transfer may take up to several days for completion.   How do you send money to someone on PayPal? Simply log into your PayPal account, select "Send and Request", enter the recipient's phone number or email address, select the amount to send, and click "Send Now".   How can I receive payment through PayPal? Senders can easily accept payments with PayPal by providing your PayPal email address and being notified via email when a payment has been completed. When funds appear in your PayPal account, they will appear instantly!
    • At least yours have parkour down pat. One of mine will still trip over his own shadow and fall over... He's a special type of cat... Ha ha ha
    • The question then becomes - was there any fluid coming from that hole before you did the rebuild ?    You may not have noticed, of course.   Depending on how you did the rebuild, the possibility has to be considered that somehow (cleaning ?)  fluid entered that hole and is now being 'forced'  out by small movements of the proportioning valve.   From the factory, there's actually a small rubber plug in that hole but with age and under-bonnet heat it's quite common for it to 'go missing'.  That rubber plug is designed to allow the venting process but also to prevent 'stuff' getting to the area (prevent corrosion, etc).   The plug is also not available as a spare part AFAIA. Personally I wouldn't race and buy a new master just yet but keep an eye on the area to see if the 'leak' continues.   If you're concerned about brake fluid damaging nearby paintwork, cable tie a piece of suitable absorbant material over the hole and remove/monitor occasionally.    Operation of the proportioning valve and the brake master itself won't be affected, but also keep an eye on brake fluid level, of course. In terms of a new master, the genuine part is getting expensive, unfortunately.  Amayama is showing AUD900+.   I was searching recently and there's an aftermarket part available from Japan made by 'Parts Assist': https://zenmarket.jp/en/yahoo.aspx?q=BNR32%2bBM50&p=1 Whether it's any good I have no idea, although in my experience Japanese aftermarket stuff is pretty good quality-wise.   The above site allows overseas buyers to purchase stuff more easily from Japan but there are fees and shipping costs, of course.   The original Japanese seller page is here: https://auctions.yahoo.co.jp/jp/auction/p1197401228 Copper/Nickel is fine but I still prefer bundy tube and it's also cheaper.
    • Your chihuahuas look weird!
×
×
  • Create New...